Building permits, zoning and septic rules in Plymouth County, Massachusetts
46Index Score / 100 #8 of 14 in Massachusetts
Plymouth County, Massachusetts government does not issue building permits, write zoning or permit septic systems1. Each city and town issues its own building permits, adopts its own zoning, and runs Title 5 septic permits through its own Board of Health234. We use Brockton and the Town of Plymouth as labeled examples; a smaller town will differ, so confirm with the town that contains your parcel5.
County-level functions such as the Registry of Deeds, a regional water district commission and county parking — not building permits, zoning, or septic permits, which are entirely town functions in Massachusetts
Building, plumbing, wiring and demolition permits and inspections within the City of Brockton — used here as a labeled example; every other Plymouth County town runs its own building department
Septic (Title 5) system permits and enforcement within the City of Brockton — used here as a labeled example; Title 5 is administered by each town's own Board of Health
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Do you need a building permit in Plymouth County, Massachusetts, and who issues it?
Yes, but Plymouth County itself doesn't issue it: Massachusetts enforces its statewide building code (780 CMR) through each municipality's own building inspector, and Plymouth County has no county building department at all2. In Brockton, the county's largest city, the Building Department handles construction, structural changes, window and door replacements, roofing, siding and demolition permits — the exact list of what needs a permit in your own town may differ slightly but follows the same statewide code5. Massachusetts lets an owner-occupant of a one- or two-family home pull the building permit directly and act as their own contractor, without a construction supervisor license, though the permit itself is still required6. The Town of Plymouth's Inspectional Services page lists exemptions such as a one-story detached storage shed of 200 square feet or less, fences not over seven feet, and driveways, and says a zoning permit may still be required for some exempt work12. Plymouth County's own government — its Commissioners, Registry of Deeds and regional water district commission — plays no role in building permits; every one of the county's towns runs this independently1.
Who issues building, zoning and septic permits in Plymouth County, and how do you reach an example office?
There is no single "Plymouth County building department" to call — you need the building office for the city or town containing the parcel2. As a verified example, Brockton's Building Department is reachable at 508-580-7150, at Brockton City Hall, 3rd Floor, 45 School St., Brockton, MA 023015. The Town of Plymouth provides a separate example for zoning applications: print and complete the application, submit it to Inspectional Services, and pay by check, money order, or the online portal before review or issuance; cash is not accepted13. Plymouth's residential zoning application is not a building permit, costs $75, and is good for one year from the date issued14. Its buildable-lot determination requires additional documents with a zoning application13. Follow the process published by your own municipality rather than treating either example as countywide.
Does Plymouth County have zoning?
Zoning in Plymouth County is adopted and administered by each city and town rather than by one county zoning office3. In the Town of Plymouth, minimum lot sizes range from 6,000 to 120,000 square feet and setbacks from 15 to 70 feet, depending on the district and use, so read the district table for the parcel1516. Massachusetts law protects some uses from local prohibition: a qualifying commercial agricultural use generally receives protection on at least 5 acres, or on at least 2 acres in an area not zoned for that use when annual sales reach $1,000 per acre, although floodplain and wetlands rules still apply17. A single accessory dwelling unit is allowed without a special permit in a single-family residential district, and owner occupancy cannot be required; local rules may still address site-plan review, setbacks, bulk, height, septic capacity and short-term rentals7. The unit may be no larger than half the principal dwelling's gross floor area or 900 square feet, whichever is smaller8. Local zoning cannot restrict the interior area of a single-family home, but state building-code requirements still apply9.
How do septic (Title 5) permits work in Plymouth County, and who issues them?
Septic systems anywhere in Massachusetts, including Plymouth County, are governed by the statewide Title 5 regulation (310 CMR 15.000), and it is each town's own Board of Health — not the county — that administers it locally4. In Brockton, that's the Board of Health at 508-894-1480, at the War Memorial Building, 156 West Elm Street, Brockton, MA 02301; every other Plymouth County town has its own Board of Health running the same Title 5 program18. In the Town of Plymouth, the Board of Health requires a sewage application from a Registered Sanitarian or Professional Engineer, an installer's signature before the permit issues, and an inspection before backfilling19. A system older than 30 years needs a passing Title 5 inspection before the building permit application is signed20. If your town has already run a public sewer and drain to your parcel's street, Massachusetts law requires you to connect your plumbing to that sewer as directed by the town's sewer authority, rather than keep relying on a private septic system21. County-wide soils data show only about 2.6% of Plymouth County's land is free of severe limitations for a conventional septic drain field so budget for a site evaluation and likely an engineered system before you count on a standard leach field22.
Can you live in an RV, tiny home, or manufactured home on your land in Plymouth County?
This guide could not confirm a Plymouth County or Brockton rule addressing RV occupancy on your own land; that answer depends entirely on your specific town's zoning bylaw3. Massachusetts' tiny-house law only protects year-round tiny homes (400 square feet or less, excluding lofts) in municipalities officially designated as "seasonal communities," which the statute requires for towns in Dukes and Nantucket counties and specified Barnstable and Berkshire county towns — no Plymouth County town is required to be designated, so don't assume this statewide allowance reaches your town without checking23. Massachusetts provides a specific temporary allowance for an owner and occupier whose residence was destroyed by fire or another natural holocaust: a manufactured home may remain on that site for up to 12 months while the residence is rebuilt, subject to the state sanitary code10. That allowance does not answer whether a town permits a manufactured home on otherwise vacant land, so ask the parcel's building and zoning office; Brockton's example office is 508-580-71505.
Buying or building in Plymouth County: the steps, in order
Identify the city or town containing the parcel, because municipal offices handle building permits, zoning and Title 5 administration234.
Ask that municipality's zoning office about the parcel's district, setbacks, minimum lot size and buildability; in the Town of Plymouth, a zoning application goes to Inspectional Services and payment is due before review13.
Contact the local Board of Health about a Title 5 site evaluation and septic approval before fixing the house location4.
Confirm the building-permit application, fees and required documents with the local building office; Brockton's example office is 508-580-71505.
If you will occupy and build or improve the home yourself, confirm that you qualify to pull the permit as an owner-occupant without a construction supervisor license6.
Submit the municipal building-permit application and follow the local inspector's directions for required inspections2.
What to check before you buy land in Plymouth County
The nearest city of 100,000 or more is about 13 miles from Plymouth County's center, and the county has about 813 people per square mile2425. A typical home is valued around $661,633, while farmland averages about $14,377 an acre2627. Plymouth County receives about 50.6 inches of precipitation a year and has experienced severe drought in about 5.3% of years2829. About 76% of the county is wooded, and 94.5% of its land has a slope of 15% or less3031. Because only about 2.6% of soils avoid severe limitations for a conventional septic drain field, get a site evaluation before relying on a particular house location22. The effective property tax rate is about 1.2%, the median property tax bill is about $6,345 a year, and the typical home insurance premium is about $2,100 a year323334.
Watch-outs
Plymouth County government (Commissioners, Registry of Deeds, the regional water district) does not issue building permits, write zoning, or permit septic systems — every one of these is a town function, and Brockton is used here only as a verified, labeled example of a Plymouth County town's offices15.
Massachusetts' tiny-house allowance only reaches municipalities officially designated as "seasonal communities," and no Plymouth County town is on the statute's required list — confirm your specific town's status before assuming a tiny home is a legal year-round option23.
This guide could not confirm a general RV-occupancy rule for any Plymouth County town; treat it as a town-by-town zoning question, not a statewide or countywide default3.
Written October 9, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.
Plymouth County highlighted among the Massachusetts counties · colored by Index score
How Plymouth County scores
Seclusion18100% ev.
Self-Sufficiency66100% ev.
Admin Boringness42100% ev.
Durability80100% ev.
Property Autonomy44100% ev.
Carry Cost33100% ev.
Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →
$662kTypical home
1.2%Property tax
$14,377Land / acre
50.6"Annual rain
5.3% of yrsSevere drought
0.6 / yr (+0.6)Mid-century 100°F days
11.1 daysMid-century dry spell
2.38" (+8.8%)Mid-century 1-day rain
1.34×Wildfire change factor
100%Forward climate coverage
$2,100Home insurance / yr
0.6% / yrInsurance growth
0.92%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
217,921People within 30 min
8,087,916People within 2 hr
488,678Radius comparison (15 mi)
812.9People / sq mi
0.4%Federal land
94.5%Land at 15% slope or less
2.6%Soils rated "not limited" for septic (strict USDA rating)
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Cities and towns in Plymouth County
Inside a city, town or township here, that government usually sets zoning and may issue its own building permits; the county’s rules above cover land outside them.
Not yet researched: Bridgewater Town · Town of Carver · Town of Duxbury · Town of East Bridgewater · Town of Halifax · Town of Hanover · Town of Hanson · Town of Hingham · Town of Mattapoisett · Town of Middleborough · Town of Pembroke · Town of Rochester · Town of Rockland · Town of Scituate · Town of Wareham · Town of West Bridgewater
Answers from the rulebook for Plymouth County
What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.
Plymouth County rules
Local zoningVaries (with conditions)
Aggregate of municipal zoning in Plymouth County; the county is not being treated as the administrator of each local ordinance.
Massachusetts zoning is adopted by cities and towns.
Municipal zoning procedures, districts, dimensional rules, and permitted uses must be checked for the particular municipality and parcel.
A zoning ordinance or by-law may be initiated by a city council, board of selectmen, board of appeals, planning board, regional planning agency, or other municipal-charter method.
“''Zoning'', ordinances and by-laws, adopted by cities and towns to regulate the use of land, buildings and structures to the full extent of the independent constitutional powers of cities and towns to protect the health, safety and general welfare of their present and future inhabitants.”
Building permitRequired
Massachusetts enforces the statewide State Building Code (780 CMR) through municipal building inspectors; Plymouth County has no county building department, so permits are obtained from each town.
Persons building their own home or personally doing renovations, regarding registration under Massachusetts home-improvement-contractor law, Chapter 142A.
This is an exemption from registration under Chapter 142A; it does not establish an exemption from building permits, inspections, certificates of occupancy, or other applicable licensing requirements.
The cited statutory provision contains additional exemptions and conditions for other categories of persons.
“The following persons are not required to be registered under this chapter: [...] persons building their own home or personally doing the renovations;”
Building code adoptedAdopted
The Massachusetts state building code applies to all buildings and structures within every Massachusetts city and town, subject to the statutory exceptions and historic-district conflict rule stated in the official source.
Local inspectors enforce the state building code within the city or town from which they are appointed.
A statute, ordinance, or bylaw regulating exterior architectural features within an historic district, regional historic district, or architecturally controlled district prevails in the event of a conflict with the code.
The Section 3A exception applies to bridges and appurtenant supporting structures constructed by or under the custody and control of the department of highways or the Massachusetts Department of Transportation, or for which that department or authority has maintenance responsibility.
Section 94 separately lists bridge and appurtenant supporting-structure exceptions involving the department of highways, Massachusetts Department of Transportation, Massachusetts Bay Transportation Authority, metropolitan district commission, or Massachusetts Port Authority, or structures for which those agencies have maintenance responsibility.
“Unless otherwise provided by the state building code, the local inspector shall enforce the state building code as to any building or structure within the city or town from which he is appointed, including any building or structure owned by any authority established by the general court but not owned in whole or in part by the commonwealth, and the state building code shall be the code for all buildings and structures within the city or town.”
One more reviewed finding on this topic
Adopted — The Massachusetts state building-code framework applicable statewide, including Plymouth County municipalities.
“Such rules and regulations [...] shall comprise and be collectively known as the state building code.”
Zoning districtsPartial
Massachusetts zoning districts, including the statutory requirement applicable to MBTA communities and locally adopted zoning districts.
Zoning ordinances and bylaws are adopted by cities and towns; the statewide statute does not provide one uniform zoning map or complete statewide district inventory.
For an MBTA community, at least one reasonable-size district must permit multifamily housing as of right, without age restrictions and suitable for families with children.
The required MBTA-community district must have a minimum gross density of 15 units per acre, subject to limitations under chapter 131 section 40 and Title 5 of the state environmental code, and must be within 0.5 miles of a commuter rail station, subway station, ferry terminal, or bus station, if applicable.
Local zoning amendments generally require public hearings and a two-thirds vote, subject to statutory exceptions.
minimum gross density: >= 15 units per acre (Subject to further limitations imposed by section 40 of chapter 131 and Title 5 of the state environmental code.) · maximum distance from applicable transit: <= 0.5 miles (Applies to the MBTA-community district when a qualifying commuter rail station, subway station, ferry terminal, or bus station is applicable.)
“An MBTA community shall have a zoning ordinance or by-law that provides for at least 1 district of reasonable size in which multi-family housing is permitted as of right; provided, however, that such multi-family housing shall be without age restrictions and shall be suitable for families with children.”
One more reviewed finding on this topic
Partial — Municipal zoning districts and zoning-map publication requirements throughout Massachusetts; the actual district names and boundaries are locally adopted by each city or town.
“Districts shall be shown on a zoning map in a manner sufficient for identification.”
Minimum dwelling sizeNone
Local zoning ordinances and bylaws statewide, as to the interior area of a single-family residential building.
This finding concerns zoning regulation; state building-code requirements are not eliminated.
The cited statute separately permits reasonable bulk and height, yard-size, lot-area, setback, open-space, parking, and building-coverage regulations for land or structures used for specified religious or educational purposes.
“No zoning ordinance or by-law shall regulate or restrict the interior area of a single family residential building”
Tiny homesLimited
Tiny-house dwelling occupancy in municipalities designated as Massachusetts seasonal communities.
A tiny house must be a detached structure containing a dwelling unit of 400 square feet or less, excluding lofts.
The seasonal community must adopt bylaws or zoning ordinances permitting construction of tiny houses.
Tiny houses must be designated for year-round housing and meet all state and local building-code requirements.
Any qualifying undersized-lot housing may not be used as a seasonal home or short-term rental of less than 6 months and must be used as year-round housing.
A movable tiny house must be registered with the Registry of Motor Vehicles, as applicable.
The municipality must be in a designated seasonal community; the statute requires designation for municipalities in Dukes and Nantucket counties and specified municipalities in Barnstable and Berkshire counties, and permits additional designations.
maximum floor area: <= 400 square feet excluding lofts · minimum year-round occupancy period: >= 10 months per year (The statute defines year-round housing as principal-residence occupancy for not less than 10 months a year.)
“A seasonal community shall: [...] adopt by-laws to permit the construction of tiny houses provided that such tiny houses are designated for use as year-round housing units”
Manufactured homesLimited
Placement and occupancy of a manufactured home on the site of a Massachusetts residence destroyed by fire or another natural holocaust while the residence is being rebuilt.
The person must be the owner and occupier of the destroyed residence.
The manufactured home must be placed on the site of that residence.
Occupancy may not exceed 12 months while the residence is being rebuilt.
The manufactured home remains subject to the Massachusetts state sanitary code.
maximum occupancy period: <= 12 months (While the residence is being rebuilt.)
“period not to exceed twelve months while the residence is being rebuilt.”
3 more reviewed findings on this topic
Limited — Temporary occupancy of a manufactured home by the owner and occupier of a residence destroyed by fire or another natural holocaust while the residence is being rebuilt.
“for a period not to exceed twelve months”
Limited — Placement and occupancy of a manufactured home after a residence is destroyed by fire or another natural holocaust while the residence is rebuilt.
“for a period not to exceed twelve months”
Limited — Placement and occupancy of a manufactured home on the site of a residence destroyed by fire or other natural holocaust while that residence is being rebuilt.
“residing in such home for a period not to exceed twelve months while the residence is being rebuilt.”
Accessory dwellingsAllowed (with conditions)
A single accessory dwelling unit, or its rental, in a single-family residential zoning district in Massachusetts.
The unit may be subject to reasonable regulations, including 310 CMR 15.000 et seq. when applicable, site plan review, dimensional setback requirements, and bulk and height regulations.
Municipalities may impose restrictions or prohibitions on short-term rental.
The unit must meet the statutory definition: self-contained sleeping, cooking, and sanitary facilities on the same lot as a principal dwelling; a separate entrance; and a gross floor area no larger than one-half the principal dwelling's gross floor area or 900 square feet, whichever is smaller.
The unit is subject to otherwise applicable dimensional and parking requirements and additional municipal restrictions allowed by law.
The use may not require owner occupancy of either the accessory dwelling unit or the principal dwelling.
Not more than one additional parking space may be required; no additional parking space may be required when the unit is not more than 0.5 miles from a commuter rail station, subway station, ferry terminal, or bus station.
More than one accessory dwelling unit, or its rental, in a single-family residential zoning district requires a special permit.
maximum gross floor area: the smaller of 1/2 of the principal dwelling's gross floor area or 900 square feet · additional parking requirement: 1 space maximum (No additional parking space may be required within 0.5 miles of a commuter rail station, subway station, ferry terminal, or bus station.)
“No zoning ordinance or by-law shall prohibit, unreasonably restrict or require a special permit or other discretionary zoning approval [...] for a single accessory dwelling unit”
3 more reviewed findings on this topic
Allowed (with conditions) — A single accessory dwelling unit, or its rental, in a single-family residential zoning district in Plymouth County.
“No zoning ordinance or by-law shall prohibit, unreasonably restrict or require a special permit or other discretionary zoning approval for the use of land or structures for a single accessory dwelling unit, or the rental thereof, in a single-family residential zoning district; provided, that the use of land or structures for such accessory dwelling unit under this paragraph may be subject to reasonable regulations, including, but not limited to, 310 CMR 15.000 et seq., if applicable, site plan review, regulations concerning dimensional setbacks and the bulk and height of structures and may be subject to restrictions and prohibitions on short-term rental, as defined in section 1 of chapter 64G.”
Allowed (with conditions) — A single accessory dwelling unit in a single-family residential zoning district in Plymouth County, subject to applicable municipal and state regulations.
“not more than 1 additional parking space shall be required”
Allowed (with conditions) — A single accessory dwelling unit, or its rental, in a single-family residential zoning district in Massachusetts cities and towns.
“No zoning ordinance or by-law shall prohibit [...] a single accessory dwelling unit”
Who permits septicMixed (with conditions)
Individual sewage-disposal systems serving residential buildings of not more than four dwelling units in Plymouth County.
Local city, town, or district health officers or boards of health may issue permits for construction, maintenance, or alteration.
Applications must meet the state sanitary code and any local health regulation.
Local boards of health may adopt requirements exceeding state environmental-code minimums after the required public hearing and notice.
The statutory 45-day deemed-granted rule applies only when the relevant local health authority has not acted on a completed application.
The applicant remains subject to regulations promulgated under Massachusetts General Laws chapter 21A, section 13.
local permit decision deadline: 45 days (If no determination is rendered on a completed application, the permit is deemed granted under Section 31E.)
“If a determination on a completed application is not rendered within forty-five days by the appropriate health officer or board of health”
One more reviewed finding on this topic
Mixed (with conditions) — Statewide individual sewage disposal systems and subsurface sewage disposal regulation in Massachusetts.
“Boards of health may make reasonable health regulations.”
Off-grid sanitationLimited
Alternative or off-grid sewage handling on parcels abutting a public sewer in a Massachusetts town.
When a town has provided both a drain and a sewer in a public way, sewage must be connected to the sewer as directed by the responsible sewer authority.
This claim does not establish a statewide rule for parcels without access to a public sewer.
“When a town has provided both a drain for waters and a sewer for sewage in a public way, the owner of every parcel of land abutting on such way or connected with such drain or sewer shall arrange his plumbing so that the waters shall be kept separate from the sewage; and shall make such connections with the drain and sewer respectively that the waters shall pass into the drain and the sewage into the sewer in accordance with the directions of the board or officer having charge of the repair and maintenance of sewers in such town.”
Well permitLimited
Private-well digging or drilling in Massachusetts.
Massachusetts requires certification for persons engaged in the business of digging or drilling wells.
A city or town may require the person engaged in digging or drilling a private well to obtain a local site permit.
The local site permit may include terms and conditions ensuring health and safety and may carry a reasonable locally determined fee.
A completion report must be submitted to the Department within 30 days after completion of any well.
well completion report deadline: 30 days (After completion of any well by digging or drilling.)
“Said certification shall be sufficient authority for any said person to engage in the business of digging or drilling wells anywhere within the commonwealth and no further licensing or certification shall be required; provided, however, that nothing contained herein shall prohibit the appropriate local authority in any city or town from requiring any person engaged in the digging or drilling of private wells to obtain a site permit in accordance with terms and conditions which ensure health and safety and said city or town may charge said person a reasonable fee for said site permit as determined by the city or town.”
Mandatory utility hookupConditional
Sewer extensions and connections to sewer systems in Massachusetts, subject to state permitting and applicable municipal or sewer-district rules.
A currently valid permit issued by the director is required unless exempted by regulation.
Cities, towns, and sewer districts may prescribe rules for sewer connections, construction, alteration, use, and inspection of connection materials.
Local sewer rules must be published as specified by law and do not take effect until publication.
For additional connections in a final area of concern after commencement of sewer-system operations, the connection is subject to available capacity and, generally, board-of-health certification regarding compliance with 310 CMR 15.000 et seq.; certain public-service uses may be permitted subject to capacity.
Civil penalties for violation of applicable city, town, or sewer-district sewer rules may not exceed $5,000 per day.
maximum civil penalty for violation of local sewer rules: <= 5000 USD per day
“No person shall engage in any other activity that may reasonably be expected to result, directly or indirectly, in discharge of pollutants into waters of the commonwealth, nor construct, effect, maintain, modify or use any sewer extension or connection, without a currently valid permit issued by the director, unless exempted by regulation of the director.”
Agricultural exemptionConditional
Primary commercial agriculture, aquaculture, silviculture, horticulture, floriculture, and viticulture land uses and related structures in Plymouth County subject to Massachusetts General Laws chapter 40A, section 3.
A zoning ordinance or by-law may not prohibit, unreasonably regulate, or require a special permit for the covered primary commercial uses and related structures, including facilities for sale of produce, wine, and dairy products.
For sales facilities, either during June, July, August, and September or during the harvest season, at least 25 percent of products for sale must be produced by the owner or lessee on the facility parcel, based on gross sales dollars or volume; alternatively, at least 25 percent must be produced by the owner or lessee on the facility parcel and at least an additional 50 percent must be produced in Massachusetts on other land used for the listed agricultural purposes.
Activities may be limited to parcels of 5 acres or more, or to parcels of 2 acres or more if sales from the covered use generate at least $1,000 per acre annually based on gross sales dollars in an area not zoned for the listed agricultural uses.
Land divided by a public or private way or waterway is construed as one parcel.
The protection does not exempt land or structures from flood plain or wetlands regulations established under the General Laws.
Agriculture is defined by section 1A of chapter 128; horticulture includes growing and keeping nursery stock and its sale.
Agriculture, aquaculture, floriculture, and horticulture do not include marijuana-related growing, cultivation, distribution, or dispensation as defined in the cited statutes, but a municipality may establish zoning allowing commercial marijuana growing and cultivation on land used for commercial agriculture, aquaculture, floriculture, or horticulture.
Nursery stock is considered produced by the owner or lessee if nourished, maintained, and managed on the premises.
minimum parcel size: >= 5 acres (Activities may instead be limited to parcels of 2 acres or more when the statutory sales threshold is met.) · alternative minimum parcel size: >= 2 acres (Annual sales from the covered use must generate at least $1,000 per acre based on gross sales dollars in an area not zoned for the listed agricultural uses.) · annual sales threshold: >= 1000 USD per acre (Applies to the 2-acre alternative in an area not zoned for the listed agricultural uses.) · on-parcel product percentage: >= 25 percent (Measured by gross sales dollars or volume; applies during June through September or the harvest season.) · additional Massachusetts product percentage: >= 50 percent (Alternative sales-facility test; products must be produced in Massachusetts on other land.)
“No zoning ordinance or by-law shall [...] require a special permit [...] except that all such activities may be limited to parcels of 5 acres or more”
One more reviewed finding on this topic
Available (with conditions) — Commercial agriculture, aquaculture, silviculture, horticulture, floriculture, and viticulture land uses and related structures under Massachusetts local zoning law.
“nor shall any such ordinance or by-law prohibit, unreasonably regulate, or require a special permit for the use of land”
Subdividing landRegulated (with conditions)
Subdivision of land in Massachusetts cities or towns where the subdivision control law is in effect.
A proposed subdivision plan must be submitted to the applicable city or town planning board for approval before subdivision.
The plan must show the lots and existing or proposed ways furnishing access to the lots.
After approval, changes to the location or width of ways require amendment under section 81W.
Lot changes must retain required frontage under local ordinance or by-law, or at least 20 feet if no such frontage distance is required.
minimum frontage when no local distance is required: 20 feet (Applies to changed lots after approval under § 81O.)
“No person shall make a subdivision of any land in any city or town in which the subdivision control law is in effect”
Campground & park staysLimited
Temporary camping at public recreational facilities operated in Massachusetts state parks, state forest recreation areas, and state reservations.
Camping is limited to areas operated as public recreational facilities by the commissioner; the statute does not authorize camping generally on all Massachusetts land.
Facilities must be consistent with the policy of the Commonwealth as set forth in section 2B.
The commissioner may impose and collect charges and fees for use of the lands, buildings, facilities, and equipment, and may revise those fees from time to time.
A disabled veteran, Purple Heart recipient, or handicapped person whose vehicle bears the specified distinctive type number plate is not required to pay charges or fees imposed under section 2D(2).
“In the development and improvement of state parks, state forest recreation areas and state reservations, the commissioner is hereby authorized and empowered:—(1) To acquire, plan, construct, maintain and operate public recreational facilities, including roads, areas for parking, picknicking and camping, provisions for swimming, wading, boating, outdoor games, winter sports, horseback riding, bicycling and hiking trails, nature study, rest areas, outlooks, comfort stations, food accommodations and such other facilities as the commissioner deems necessary and desirable and consistent with the policy of the commonwealth, as set forth in section two B.”
Inside cities and towns in Plymouth County
Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.
Building permitRequired
Construction, reconstruction, alteration, repair, removal, demolition, change of use or occupancy, or regulated equipment work in the Town of Plymouth, Massachusetts.
A written application must be filed with the building official and the required permit obtained before covered work proceeds.
Ordinary repairs are exempt.
Residential exemptions include one-story detached accessory structures used as tool or storage sheds, playhouses and similar uses, but not garages, when floor area does not exceed 200 square feet; fences not over seven feet; qualifying retaining walls not over four feet; qualifying water tanks; sidewalks and driveways; finish work; qualifying prefabricated pools; swings and playground equipment; qualifying window awnings; qualifying unattached decks not exceeding 200 square feet and not more than 30 inches above grade; and qualifying plastic-film greenhouses.
The page states that exemptions are subject to other laws, bylaws, zoning bylaws, rules and specialized codes, and that a zoning permit may still be required for some exempt work.
Emergency repairs governed by 780 CMR require the permit application by the next working business day.
“780 CMR R105.1 - Required - It shall be unlawful to construct, reconstruct, alter, repair, remove or demolish a building or structure; or to change the use or occupancy of a building or structure; or to install or alter any equipment for which provision is made or the installation of which is regulated by this code without first filing a written application with the building official and obtaining the required permit. A building permit is not required for ordinary repairs.”
Local zoningPresent (with conditions)
Residential zoning permitting in the Town of Plymouth.
The town document states that the zoning permit is not a building permit.
The zoning permit is good for one year from the date issued.
The procedure requires zoning review before the building permit for the covered swimming-pool work.
“PERMIT FEE: $75.00 [...] RESIDENTIAL ZONING PERMIT APPLICATION (This is not a building permit) [...] ZONING PERMITS ARE GOOD FOR ONE YEAR FROM THE DATE IT IS ISSUED”
2 more reviewed findings on this topic
Present (with conditions) — Zoning administration in the Town of Plymouth, located within Plymouth County, Massachusetts.
“Please print the application, complete and submit to the Inspectional Services Department.”
Present (with conditions) — Land use and development in the Town of Plymouth, one municipality within Plymouth County.
“All signs must have approved zoning before a building permit application can be submitted.”
Zoning districtsPublished
Zoning districts and boundaries in the Town of Plymouth.
District boundaries are shown on the Official Zoning Map filed in the Town Clerk's office and incorporated by reference into the bylaw.
The bylaw establishes districts through Article V and overlay districts through Article VI.
“Zoning District boundaries are established as shown on the Official Zoning Map of the Town of Plymouth, which is filed in the office of the Town Clerk”
Minimum lot sizeDistrict specific (with conditions)
Residential and other zoning districts governed by the Town of Plymouth dimensional table.
Minimum lot sizes vary by zoning district and use.
The table includes distinct entries for single-family, two-family, recreational development, rural density development, and other uses.
Special permits and footnotes may modify dimensional requirements.
minimum lot size examples: 120,000; 60,000; 40,000; 25,000; 20,000; 15,000; 6,000 square feet, depending on district and use (See district-specific table entries and footnotes.)
“Lot Size (sf) [...] RR - Single family NA NA 120,000 120,000 [...] R-40 - Single family NA NA 40,000 40,000”
SetbacksDistrict specific (with conditions)
Setbacks in Town of Plymouth zoning districts.
Setbacks vary by district and use.
The dimensional table includes side, front, and rear setbacks.
The bylaw provides a special-permit reduction mechanism for certain building setbacks subject to findings.
setback examples: 15, 25, 30, 35, 40, 50, 70 feet, depending on district and use feet (Special-permit reductions may apply under the dimensional-table footnotes.)
Septic permitting and related Board of Health activities for property in the Town of Plymouth.
The Town of Plymouth building page states that trench permits are not to be used in conjunction with Board of Health activities, including perc tests, septic repair and septic installation.
The Town of Plymouth public-health process requires a septic permit to be picked up by a licensed installer before a building-permit application signature when a new septic system is installed.
“As of July 11, 2005 the Plymouth Board of Health and its agents will be conducting final inspections, prior to backfilling on all newly installed septic systems.”
Septic permitRequired
Septic system installation and disposal works construction within the Town of Plymouth, Plymouth County, Massachusetts.
For new construction, obtain an approved zoning permit.
Obtain Conservation Commission approval if applicable.
The sewage application must be submitted by a Registered Sanitarian or Professional Engineer.
The Town requires the listed supporting materials, including sewage plans, a Soil Evaluator Report, applicable well testing and reports, floor plans, other information required by Title V Regulation 15.220, and all required filing fees.
All approved applications must be signed by the licensed installer before the permit is issued.
Installation work without an approved endorsed permit is subject to a fine of twice the application fee.
All septic system installations must be inspected by an agent of the Board of Health before backfilling; the rules state this requirement is effective March 1, 2005.
The Town's final-inspection procedure states that the installer must submit the inspection request with a $75 fee; an additional $75 fee applies for reinspection.
The Town webpage lists septic permit submissions and states that the Title 5 Report Submission fee is effective May 1, 2023 and is $75.
This claim is town-specific and does not establish rules for the other municipalities in Plymouth County.
final inspection fee: 75 USD (An additional $75 fee applies for each reinspection.) · Title 5 report submission fee: 75 USD (Effective May 1, 2023.)
“All approved applications must be signed by the licensed installer in order for a permit to be issued. Any installation work done without an approved endorsed permit will be fined twice the application fee.”
2 more reviewed findings on this topic
Required — A new septic system associated with a building permit application in the Town of Plymouth.
“If the property is having a new septic system installed, the septic permit must be picked up by a licensed installer prior to a signature.”
Limited — Failed Title 5 subsurface sewage disposal systems in Hingham, Plymouth County, Massachusetts, including attempted upgrades or repairs.
“In virtually every situation, a permit will be needed from the Board of Health.”
Septic inspectionRequired
Septic systems older than 30 years in connection with a building permit application in the Town of Plymouth.
A passing Title 5 inspection is required before the application is signed.
The source specifically applies the requirement to septic systems older than 30 years.
system age threshold: > 30 years
“Septic systems older than 30 years must have a passing Title 5 inspection prior to application being signed.”
Permit feesPublished (with conditions)
Selected residential and pool permit fees published by the Town of Plymouth.
The document states that commercial fees require assistance and does not publish a general commercial fee schedule.
The document was revised February 1, 2023.
residential zoning permit fee: 75 USD · above-ground pool building fee: 100 USD · in-ground pool building fee: 200 USD · insulation fee: 75 USD · roofing/siding/windows/doors residential fee: 75 USD · residential combination of two fee: 140 USD · residential combination of three fee: 200 USD
Town of Plymouth zoning-application process, not a countywide building-permit process.
The application must be printed, completed, and submitted to the Inspectional Services Department.
Payments are accepted by check, money order, or online payment portal; cash is not accepted.
Payment must be made before application review or issuance.
The residential zoning application is not a building permit.
A commercial and industrial zoning application is used when building alterations or a change of use is needed.
A buildable-lot determination requires additional documentation together with a residential or commercial zoning application.
“Please print the application, complete and submit to the Inspectional Services Department. Payments are accepted in the form of check, money order, or though our online payment portal. We do not accept cash. Payments must be paid prior to application review or issuance.”
One more reviewed finding on this topic
Partial — Zoning application process in the Town of Plymouth, Plymouth County.
“Payments must be paid prior to application review or issuance.”
Set by your town or city, not the county
In Massachusetts, zoning is adopted by each town or city, so Plymouth County has no county-wide answer on these. Find your town or city in the list of places on this page, or call its clerk or zoning administrator.
Lot coverage
Building height
Living in an RV
Camping on your land
Short-term rentals
Still unanswered
We looked and could not find an official answer yet. Silence is not permission — ask the county directly.
Inspections — Building inspections in Plymouth County.
Certificate of occupancy — Certificates of occupancy for buildings in Plymouth County.
Driveway access — Driveway and access requirements in Plymouth County.
Building in a floodplain — Floodplain development in Plymouth County.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Living off-grid in Plymouth County, Massachusetts
Is Plymouth County a good place to live off-grid or homestead?
Plymouth County scores 46/100 on the Bolthole Index, a marginal county profile. Its strengths: mixed durability signals and strong self-sufficiency basics: 50.6″/yr rainfall plus 76% wooded land. Watch-outs: about 217,921 people within a 30-minute drive and higher long-term carry cost.
Do you need a building permit in Plymouth County, Massachusetts?
Plymouth County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Town Board of Health under MassDEP Title 5 (310 CMR 15.000). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.
How much does land cost in Plymouth County, Massachusetts?
Land in Plymouth County runs about $14,377 per acre, based on the latest county data.
What is the water situation in Plymouth County?
Plymouth County gets about 50.6" of rain a year, with severe drought in roughly 5.3% of years.
How remote is Plymouth County?
A representative private-land location has about 217,921 people within a 30-minute drive and 8,087,916 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.
