Building permits, zoning and land rules in Dukes County, Massachusetts
60Index Score / 100 #4 of 14 in Massachusetts
A building permit is required in Dukes County, Massachusetts, but the building inspector for the parcel's town—not a single county department—handles it1. Towns also administer zoning, with added regional review for certain projects by the Martha's Vineyard Commission23. Title 5 septic review goes through the local Board of Health4.
At a glance
Building permit
Required for regulated work and issued by the parcel's town; exemptions vary by project156
Zoning
Administered by each town, with added regional review by the Martha's Vineyard Commission for qualifying projects2
Septic permit
Governed by statewide Title 5 and reviewed by the local town Board of Health4
Owner-builder
Available for qualifying owner-occupied work; the building permit is still required78
Tiny house
A seasonal-community town must adopt a bylaw allowing a year-round tiny house of 400 square feet or less9
Minimum home size
Local zoning cannot regulate the interior area of a single-family home, though building-code rules still apply10
Accessory dwelling unit
One ADU is protected in a single-family residential district, subject to reasonable local rules11
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Do you need a building permit in Dukes County, Massachusetts?
Yes. Construction in Dukes County requires a building permit under the Massachusetts State Building Code, with the building inspector for the parcel's town enforcing the requirement rather than a county building department1. Oak Bluffs requires an application and permit before regulated construction, alteration, demolition, occupancy changes or equipment work, subject to its listed exceptions5. West Tisbury likewise requires building permits for covered work, while identifying an exemption for a one-story detached accessory structure no larger than 200 square feet6. A qualifying homeowner may obtain a permit for an owner-occupied home without a construction supervisor's license, but the permit itself is still required78. Certain projects can also face Martha's Vineyard Commission review after referral by a town permitting agency3.
Who issues Dukes County building permits, and how do you reach the right office?
Dukes County does not provide one building-permit counter for the entire county; the municipal building inspector for the parcel's town issues and enforces the building permit1. Identify the municipality from the deed or assessor record before requesting forms, because towns also administer zoning and local Boards of Health handle septic review24. Oak Bluffs building-permit fees vary by permit type; work not otherwise defined is listed at $6.50 per $1,000 of cost with a $300 minimum, and fees double when work begins before permit issuance12. West Tisbury's Building Department enforces the state building codes and local zoning ordinance1314. The Martha's Vineyard Commission assists the Dukes County towns with regional land-use matters, but qualifying projects generally reach it by referral from a town permitting agency3.
Does Dukes County have zoning?
Yes, but zoning varies by town and special district rather than following one set of parcel rules across Dukes County15. West Tisbury, for example, enforces its own local zoning ordinance14. A qualifying non-habitable accessory structure in West Tisbury may enter a required setback only when its footprint is no larger than 120 square feet, its height is no more than 16 feet, and it remains at least its own height and no less than 10 feet from a side or rear lot line16. The Island Road District also imposes special height and setback restrictions along major roads in all six Martha's Vineyard towns17. Massachusetts law prevents local zoning from regulating the interior area of a single-family home, although building-code requirements remain10. State law also protects one accessory dwelling unit in a single-family residential district, subject to reasonable local rules11.
How do septic permits work in Dukes County?
Dukes County septic systems are governed by Massachusetts Title 5, and the local Board of Health for the parcel's town reviews designs and issues septic permits4. In Oak Bluffs, the Health Department oversees new systems and repairs, reviews a complete septic construction application within 45 days, and issues the construction or repair permit after plan approval1819. In Edgartown's Cape Pogue District, development involving a septic system also requires a Planning Board special permit unless a stated exception applies20. Zero percent of the county's mapped soils are rated without severe limitations for a conventional drain field, so make a parcel-specific site evaluation an early contingency21. When a town has provided both a drain and sewer in a public way, an abutting or connected parcel must route sewage to the sewer as directed by the responsible authority22.
Can you live in an RV or tiny home on your land in Dukes County?
Dukes County has no single confirmed countywide answer for living in an RV on private land; ask the parcel's town zoning or building office about occupancy, temporary camping and utility connections before moving an RV onto the site2. Tiny houses have a defined state pathway for seasonal communities, but the municipality must adopt a bylaw permitting them9. Under that pathway, a tiny house contains no more than 400 square feet excluding lofts, must meet state and local building requirements, and must serve as year-round housing rather than a seasonal home or a short-term rental9. Year-round housing means principal-residence occupancy for at least 10 months each year, and a movable tiny house must be registered when applicable9. Confirm that the specific town has adopted the necessary bylaw and that the parcel's zoning district allows the proposal.
Building a home in Dukes County: the steps, in order
Identify the parcel's town, because municipal offices administer building permits, zoning and septic review124.
Ask the town zoning office for the district, allowed use, setbacks, lot requirements and special-district rules15.
Take the site to the town Board of Health for Title 5 review; Oak Bluffs, for example, reviews septic plans and issues construction or repair permits41923.
Ask whether the proposal requires Martha's Vineyard Commission review, since town permitting agencies refer qualifying regional projects3.
Apply to the town building inspector and verify the town's current fee before work begins112.
If acting as the owner-builder of an eligible owner-occupied home, file the homeowner exemption affidavit with the permit materials7.
Follow the town's required inspection and closeout process; Oak Bluffs septic work ends with inspection and a Certificate of Compliance after the required letters19.
What should you check before buying land in Dukes County?
Confirm the municipality and every special district first, because zoning controls vary by town and district across Dukes County15. Land along a major Martha's Vineyard road may fall in the Island Road District, where special setback and height restrictions apply17. Make septic feasibility a contract contingency: zero percent of mapped county soils are rated without severe limitations for a conventional drain field, despite 89.5% of county land having a slope of 15% or less2124. Ask the town about private-well approval, floodplain development, legal road access and driveway requirements because countywide answers for those topics could not be confirmed. Budget with the island market in mind: the typical home value is about $1,559,624, the typical annual home-insurance premium is about $7,760, and the median annual property-tax bill is about $5,503252627.
Watch-outs
A Dukes County address does not identify one county permit counter; building, zoning and septic applications go to the parcel's town offices124.
Conventional septic conditions are difficult countywide: zero percent of mapped soils are rated without severe drain-field limitations, so secure a parcel-level evaluation early21.
RV occupancy, temporary camping, private-well permits and driveway rules could not be confirmed countywide; ask the parcel's town zoning, building, health and road offices before relying on the land for those uses2.
A seasonal-community designation alone does not authorize a tiny house; the town must adopt a permitting bylaw and the home must satisfy year-round occupancy and code conditions9.
Oak Bluffs doubles listed building-permit fees when work starts before permit issuance12.
Edgartown's Cape Pogue District can require a Planning Board special permit for development involving a septic system, in addition to the ordinary town health review20.
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.
Dukes County highlighted among the Massachusetts counties · colored by Index score
How Dukes County scores
Seclusion39100% ev.
Self-Sufficiency59100% ev.
Admin Boringness43100% ev.
Durability81100% ev.
Property Autonomy44100% ev.
Carry Cost48100% 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 →
$1560kTypical home
0.5%Property tax
$8,824Land / acre
47.1"Annual rain
4% of yrsSevere drought
0 / yr (+0)Mid-century 100°F days
10.7 daysMid-century dry spell
1.97" (+8.9%)Mid-century 1-day rain
1.27×Wildfire change factor
100%Forward climate coverage
$7,760Home insurance / yr
0.5% / yrInsurance growth
0.75%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
12,242People within 30 min
59,044Radius comparison (15 mi)
201.7People / sq mi
0.9%Federal land
89.5%Land at 15% slope or less
0%Soils rated "not limited" for septic (strict USDA rating)
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Cities and towns in Dukes 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.
Town of Aquinnah · Town of Chilmark · Town of Edgartown · Town of Gosnold · Town of Oak Bluffs · Town of Tisbury · Town of West Tisbury
Answers from the rulebook for Dukes County
What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.
Dukes County rules
Local zoningVaries (with conditions)
Countywide aggregate of municipal and special-district zoning and land-use controls in Dukes County.
The conclusion aggregates municipal/town zoning and Martha’s Vineyard Commission district controls; Dukes County itself is not asserted to administer each local ordinance.
The Island Road District has special regulations in six towns.
The Cape Pogue District in Edgartown has additional special-permit, prohibited-use, and subdivision controls.
“Use regulations elsewhere in this By-law notwithstanding, only the following uses are permitted. Any structures associated with these uses and any other development or uses would require a Special Permit under Section 14.4.4.”
SetbacksDistrict specific (with conditions)
Development within the Martha’s Vineyard Commission Island Road District.
The official MVC page states that the district protects major roads in all six towns with special setback regulations.
Specific numeric setback distances were not provided on the opened page.
“The Island Road District protects major roads in all six towns with special regulations including height and setback restrictions, protections for stone walls, and requirements to bury power lines.”
Septic permitRequired
Development involving septic systems in the Cape Pogue District of Edgartown.
A Special Permit is required for development except for uses permitted under Section 5.4.C.
The Planning Board is the Special Permit Granting Authority.
The rule is district-specific and does not establish a countywide septic-permit rule.
“Except as permitted under Section 5.4.C, a Special Permit shall be required for any "development" as that word is defined in Chapter 831, Section 6 of the Acts and Resolves of 1977, for example any construction, alteration, addition and removal of structures, including but not limited to: dwellings, septic systems, stairwells, decks, boardwalks, impervious surface, trails and roads, out-buildings, boathouses, piers, recreational amenities, fences and walls. The Planning Board shall be the Special Permit Granting Authority.”
Building permitRequired
Under the statewide Massachusetts State Building Code (780 CMR), a building permit is required for all construction (e.g., Edgartown requires one except as exempted by 780 CMR 105.2), enforced by each town's municipal building inspector, not the county.
Zoning is administered by the towns, and Martha's Vineyard additionally has the Martha's Vineyard Commission, the regional land-use authority reviewing Developments of Regional Impact (DRI) and Districts of Critical Planning Concern (DCPC) for the towns of Dukes County.
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.”
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.”
One more reviewed finding on this topic
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”
One more reviewed finding on this topic
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)
Statewide individual sewage disposal systems and subsurface sewage disposal regulation in Massachusetts.
State environmental-code minimum requirements apply statewide.
Local health officers or boards of health administer permits where their authority includes issuance of permits for individual sewage disposal systems.
Local boards of health may adopt more stringent sanitary regulations only after the required public-hearing process.
The cited statute applies specifically to residential buildings of not more than four dwelling units.
“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 exemptionAvailable (with conditions)
Commercial agriculture, aquaculture, silviculture, horticulture, floriculture, and viticulture land uses and related structures under Massachusetts local zoning law.
The statutory protection applies when, during June, July, August, and September or during the harvest season of the primary crop, 25 percent of products for sale based on gross sales dollars or volume were produced by the owner or lessee on the parcel; alternatively, 25 percent were produced on the parcel and at least an additional 50 percent were produced in Massachusetts on other qualifying land.
Activities may be limited to parcels of 5 acres or more, or to parcels of 2 acres or more in areas not zoned for the listed agricultural uses when annual sales generated from the use are at least $1,000 per acre based on gross sales dollars.
Land divided by a public or private way or waterway is construed as one parcel for this section.
The exemption does not exempt land or structures from floodplain or wetlands regulations established under the General Laws.
Agriculture has the meaning given in Chapter 128, Section 1A; 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 described in the cited statutes, although a municipality may allow commercial marijuana growing and cultivation by zoning on land used for commercial agriculture, aquaculture, floriculture, or horticulture.
on-parcel production threshold: >= 25 percent (During June, July, August, September, or the primary crop’s harvest season; measured by gross sales dollars or volume.) · additional Massachusetts production threshold: >= 50 percent (Alternative test requiring at least 25 percent on-parcel production and additional production elsewhere in Massachusetts.) · minimum parcel size: >= 5 acres (Activities may be limited to parcels of 5 acres or more.) · alternative minimum parcel size: >= 2 acres (In areas not zoned for the listed agricultural uses, only if annual sales are at least $1,000 per acre based on gross sales dollars.) · annual sales threshold: >= 1000 USD per acre (Applies to the 2-acre alternative in areas not zoned for the listed agricultural uses.)
“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 Dukes County
Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.
Building permitRequired
Building work in the Town of West Tisbury, Dukes County.
A one-story detached accessory structure not exceeding 200 square feet is identified as exempt from the building-permit requirement.
Other laws, bylaws, rules, and specialized codes may still require a permit.
“Non-habitable Sheds >200sqft are required to meet 50' setbacks and would require a Building Permit.”
One more reviewed finding on this topic
Required — Construction, reconstruction, alteration, repair, removal, demolition, changes of use or occupancy, and regulated equipment in Oak Bluffs.
“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.”
An owner-occupant applying for a building permit for work on an owner-occupied home in Oak Bluffs.
The homeowner must either perform the work personally or agree to supervise construction.
The Building Department states it cannot ensure that contractors have proper licenses or insurance when the homeowner applies.
The homeowner may not have access to the Home Improvement Guarantee Fund in cases of fraud or shoddy workmanship.
A building permit remains required.
“Yes, in an owner occupied home,homeowners who are either doing the work themselves or agree to supervise construction can apply for a Building Permit.”
Building code adoptedAdopted
State building-code enforcement in West Tisbury, Dukes County.
The page identifies enforcement of State Building Codes by the town Building Department; the accessible source does not identify a separate local code amendment.
“The enforcement of State Building Codes, Local Zoning Ordinances, Architectural Access Board Regulations, and 271 CMR Sheet Metal Code.”
Local zoningPresent (with conditions)
Local zoning in the Town of West Tisbury, one of the municipalities in Dukes County.
The local zoning ordinance is administered and enforced at the town level.
This claim does not establish a countywide zoning ordinance or the zoning rules of other Dukes County municipalities.
“The enforcement of State Building Codes, Local Zoning Ordinances, Architectural Access Board Regulations, and 271 CMR Sheet Metal Code.”
SetbacksSpecified
Accessory structures and uses in West Tisbury, Dukes County.
Detached garages, studios, barns, stables, tennis courts, swimming pools, and accessory structures attached to the principal building must comply with the principal-building setback requirements.
One detached accessory structure or use may encroach into required setback areas only if it is not used for human habitation, has a footprint no larger than 120 square feet, does not exceed 16 feet in height, and is set back at least the structure's height and not less than 10 feet from side or rear lot lines.
A special permit may allow certain non-habitable structures that do not meet setback requirements.
encroaching detached accessory structure footprint: <= 120 square feet (must not be used for human habitation) · encroaching detached accessory structure height: <= 16 feet · minimum side or rear setback for qualifying encroaching accessory structure: >= 10 feet (also at least the height of the structure)
“Has a footprint no larger than 120 square feet;”
Who permits septicLocal (with conditions)
Local administration of septic plan review, permitting, inspection, and compliance certification in Oak Bluffs.
Oak Bluffs applies the statewide Title 5 regulations in 310 CMR 15.00.
The Board of Health/Health Department performs plan review, inspections, and permit issuance.
Other referrals, such as Conservation Department review, may be required when wetland or open-water setbacks cannot be met.
“New septic systems and repairs to existing septic systems are installed with regulatory oversight by the Health Department. Septic Plans are reviewed and approved within 45 days of submission of a completed septic construction application.”
One more reviewed finding on this topic
Local (with conditions) — Administration of septic-system permitting in Oak Bluffs, Dukes County.
“Plan Review and Inspections for: [...] Septic Systems”
Septic permitRequired
New onsite wastewater systems and repairs to existing septic systems in Oak Bluffs.
Plans are reviewed and approved by the Health Department.
An approval permit to construct or repair is issued after plan approval.
Final approval is issued as a Certificate of Compliance after inspection and required engineer and installer letters.
The system must comply with 310 CMR 15.00.
plan review period: 45 days (after submission of a completed septic construction application)
“Once your plan is approved, a permit to construct or repair is issued.”
One more reviewed finding on this topic
Required — Septic construction and related on-site wastewater permitting in Oak Bluffs, Dukes County.
“Once your plan is approved, a permit to construct or repair is issued.”
Permit feesVariable (with conditions)
Oak Bluffs building permit fees.
The fee is determined by the municipality.
For one- and two-family applications, the form lists either a standard city/town application fee or building cost multiplied by a municipal factor and .0065, described as $6.50 per $1,000 of actual building cost, or a municipal minimum fee.
Other fees may apply.
building-cost multiplier: 0.0065 per USD (the form also permits a standard city/town application fee or municipal minimum fee)
“*** permit types not defined are $6.50/$1000 of cost, $300 minimum. Fees Will Be Doubled For Work Performed Prior To Issuance of a Permit.”
Set by your town or city, not the county
In Massachusetts, zoning is adopted by each town or city, so Dukes 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.
Minimum lot size
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 Dukes County.
Certificate of occupancy — Certificates of occupancy in Dukes County.
Septic inspection — Septic inspections in Dukes County.
Driveway access — Driveway-access requirements in Dukes County.
Building in a floodplain — Floodplain development in Dukes County.
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Permit process
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 Dukes County, Massachusetts
Is Dukes County a good place to live off-grid or homestead?
Dukes County scores 60/100 on the Bolthole Index, a solid county profile. Its strengths: a durable current and mid-century hazard profile and strong self-sufficiency basics: 47.1″/yr rainfall with little drought. Watch-outs: sparse surroundings — about 12,242 people within a 30-minute drive.
Do you need a building permit in Dukes County, Massachusetts?
Dukes County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by MassDEP Title 5 (310 CMR 15.000), enforced by the local Board of Health. 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 Dukes County, Massachusetts?
Land in Dukes County runs about $8,824 per acre, based on the latest county data.
What is the water situation in Dukes County?
Dukes County gets about 47.1" of rain a year, with severe drought in roughly 4% of years.
How remote is Dukes County?
A typical private-land location has about 59,044 people within 15 miles and 9,626,184 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.
