Bolthole Index

Charles County, Maryland

Building permits, zoning and septic in the Town of La Plata, Maryland

The Town of La Plata, Maryland requires a Town building permit to construct a home or alter a building.1 Inside town limits, the Town administers zoning; septic and private-well approvals go through Charles County Department of Health.234 Where Town water or sewer mains are ready for operation, abutting owners must connect after reasonable notice, so an off-grid plan must account for connection obligations.5

At a glance

Building permits
Town building permit required for construction and building alterations1
Zoning
Town zoning governs land use and occupancy inside town limits62
Septic
Health department approval required; Town sewer connection obligations may apply35
Private wells
Licensed well driller applies for approval; potable wells need a Certificate of Potability4
Floodplain development
Town floodplain permit required for development touching a flood hazard area7
Owner-builder
State owner-performed home-improvement exception does not waive new-home building permits8

Who to call

Building permits

Town of La Plata Building Permits

Town building-permit requirements; contact the Planning Department to apply

Zoning

Town of La Plata Planning Department

Town zoning, development review, building-permit coordination and floodplain application routing

301-934-8421

305 Queen Anne Street

Building permits

Town of La Plata Building Permit Plan Requirements

Design-professional drawings and PlanChek contact for building and trade applications

301-870-8710

Septic permits

Charles County Department of Health, Environmental Health Division

Onsite sewage disposal systems, individual wells, and related inspections

301-609-6751

mdh.charlescountyehadmin@maryland.gov

4545 Crain Highway

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

Going off-grid in Town of La Plata means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in the Town of La Plata, MD?

The Town of La Plata requires a building permit before construction, enlargement, alteration, moving, demolition or a change in building occupancy.1 La Plata construction follows the Town’s adopted building codes and local amendments, rather than an assumption that rural or owner-built work is exempt.9

La Plata requires drawings stamped by a design professional for new residential construction and all commercial projects.10 Maryland’s exception for owner-performed home improvements concerns the contractor-license requirement on those permits; the exception does not establish a general building-permit exemption for new homes.8 Ask the Town Planning Department which application and inspection requirements apply to your proposed work.2

Who handles building permits in the Town of La Plata?

The Town of La Plata Planning Department oversees development, permitting and code enforcement; start there for a property inside town limits.2 Reach Town Hall at 301-934-8421, at 305 Queen Anne Street, for routing to Planning.2 The Town’s building-permit page also gives PlanChek’s contact number as 301-870-8710.10

La Plata publishes permit applications and a Building Permit Package Checklist, with additional documentation depending on the project.11 Town building, utility and occupancy fees are published, and major facility fees help fund water and sanitary sewer improvements serving new development.12 Ask for the current Town fee schedule and a project-specific list of required applications before budgeting construction.1211

Does the Town of La Plata have zoning?

Land use and occupancy inside the Town of La Plata must conform to the regulations of the property’s zoning district unless lawfully modified by variance.6 The Town Planning Department administers the Zoning Ordinance, and its Parcel Search Map provides Town zoning and property-search information.2

Ask Town Planning to identify the parcel’s district and confirm the proposed dwelling type, lot dimensions, setbacks and accessory structures before choosing a building footprint.62 We could not confirm a Town-wide minimum dwelling floor area or a general agricultural construction exemption; ask Town Planning about both for your project.2 Town subdivision and land development are regulated separately, so splitting a parcel also needs a Town review rather than relying on Charles County’s subdivision rules.13

How do septic permits work inside the Town of La Plata?

Start a La Plata sanitation plan by checking Town utility connection obligations: abutting property owners must connect after reasonable notice when a Town water main or sanitary sewer is declared ready for operation.5 Private sewage-disposal methods that adversely affect public comfort or health may be treated as nuisances and abated by the Town.14

Where an onsite sewage system is proposed, Charles County Department of Health reviews the plans, and approval is required before construction.3 The application must address soils, percolation testing, system design, improvements and nearby wells, and the project must conform to the approved county water and sewerage plan.3 Call Environmental Health at 301-609-6751 or email mdh.charlescountyehadmin@maryland.gov about septic and private-well approvals.15 Charles County’s soil rating shows only 0.9% rated not limited for conventional drain fields; that county-level figure supports getting a site evaluation, not concluding septic is impossible on a La Plata lot.16

Can you live in an RV or tiny home in the Town of La Plata?

We could not confirm a Town of La Plata rule authorizing residential RV use on a private lot, temporary camping while building, or a tiny home on wheels; ask Town Planning for a written determination for the proposed use and address.2 La Plata’s zoning requirement still applies to land use and occupancy, so an unconfirmed RV rule does not establish permission to live in an RV.6

Maryland protects placement of qualifying new manufactured homes in zones allowing single-family residential uses, subject to statutory qualifications, conversion to real property and applicable local requirements.17 That protection does not require La Plata to allow mobile homes on wheels or temporary foundations.17 Ask Planning to distinguish your proposed small site-built house, manufactured home or wheeled unit before purchasing it.2

What are the steps to build a home in the Town of La Plata?

  1. Ask Town Planning to confirm the parcel’s zoning district and whether the proposed home and site layout comply with Town regulations.62
  2. Establish the water and sewage approach: check Town connection obligations, then arrange health department review if proposing septic or a private well.534
  3. Prepare the Town’s building application and checklist materials, including stamped drawings for new residential construction and applicable development approvals.1110
  4. Obtain the Town building permit and any Town floodplain permit before the covered work begins.17
  5. Arrange the inspections required for each permit during construction; PlanChek handles the Town’s building and trade inspections, while fire inspections are scheduled through the Southern Regional State Fire Marshal’s Office.18

What should you check before buying land in the Town of La Plata?

A La Plata floodplain permit is required before covered development wholly or partly within, or touching, a flood hazard area, including grading, filling, temporary structures and manufactured-home placement.7 State requirements may apply in addition to the Town floodplain permit, so resolve floodplain constraints before committing to a site layout.7

For a private well, a licensed well driller submits the application to the local approving authority; a potable-water well needs a Certificate of Potability before service.4 Work within a Town right-of-way has a Town Public Works Permit application, while constructing or modifying a residential driveway within State right-of-way requires coordination with MDOT SHA for a State permit.1019 For land outside town limits, use the Charles County guide to check the county’s zoning jurisdiction separately.20

Watch-outs

  • La Plata’s Town water and sewer connection obligations can constrain plans to rely on private sanitation or remain off grid.514
  • We could not confirm residential RV permission or a Town-wide minimum home size; ask Town Planning before buying a unit or lot.2
  • La Plata floodplain permits cover more than buildings, including filling, grading and temporary structures in covered flood hazard areas.7

Sources

  1. Town of La Plata Building Permits (townoflaplata.org)
  2. Town of La Plata Planning Department (townoflaplata.org)
  3. Proposed Action on Regulations: Sewage Disposal in Maryland, quoted and re-checked
  4. Water Well Construction, quoted and re-checked
  5. Article XI - Water and Sewers (Town of La Plata), quoted and re-checked
  6. Section 191-9 - Application of regulations (Town of La Plata), quoted and re-checked
  7. Section 108-26 - Permits required and expiration (Town of La Plata), quoted and re-checked
  8. Maryland Business Regulation Article § 8-504 (Maryland statewide rule), quoted and re-checked
  9. Building Permits (Town of La Plata), quoted and re-checked
  10. Town of La Plata Building Permit Plan Requirements (townoflaplata.org)
  11. Permit FAQs (Town of La Plata), quoted and re-checked
  12. Permits (Town of La Plata), quoted and re-checked
  13. 2026 Ordinances (Town of La Plata), quoted and re-checked
  14. Article XI - Water and Sewers (Town of La Plata), quoted and re-checked
  15. Charles County Department of Health, Environmental Health Division (charlescountyhealth.org)
  16. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  17. mgaleg.maryland.gov (Maryland statewide rule), quoted and re-checked
  18. Permits (Town of La Plata), quoted and re-checked
  19. Access Management/Permits - MDOT SHA (Maryland statewide rule), quoted and re-checked
  20. How do I determine the Zoning for my Property?, quoted and re-checked

Written October 11, 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.

Answers from the rulebook for Town of La Plata

Town of La Plata’s own rules

  • Building permitRequired

    New building construction and listed construction activities inside La Plata town limits.

    • Town lists new construction, additions, alterations, structural-component replacement, sheds, decks, solar panels, roof replacement, fire/storm damage, porches, enclosure work, and electrical/plumbing/mechanical changes among activities requiring permits.
    “The following activities require permits:”
  • Building code adoptedAdopted (with conditions)

    Building construction inside La Plata town limits.

    • The town page identifies the current codes as the 2021 Building Code, 2020 Electrical Code, 2024 NFPA1, and NFPA101.
    • Local amendments in Chapter 75 apply.
    “The Town is currently under the 2021 Building Code, 2020 Electrical Code, 2024 NFPA1, and NFPA101!”
    One more reviewed finding on this topic
    • Adopted (with conditions) — Construction inside La Plata town limits.
      “The Town is currently under the 2021 Building Code, 2020 Electrical Code, 2024 NFPA1, and NFPA101!”
  • InspectionsRequired

    Construction and development-related activities inside La Plata town limits.

    • PlaChek performs building, water-meter, water/sewer-lateral, mechanical, electrical, plumbing, and permanent-sign inspections for the Town.
    • Fire inspections are scheduled through the Southern Regional State Fire Marshal's Office.
    “Yes! Each permit has their own inspections that need to be completed during different phases of construction.”
  • Local zoningPresent (with conditions)

    Land and structures inside La Plata town limits.

    • Use and structures must conform to regulations applicable in the zone where located; lawful variances may modify regulations.
    “No land shall hereafter be used or occupied except in conformity with all regulations herein applicable within the zone in which it is located.”
    One more reviewed finding on this topic
    • Present — Land inside La Plata town limits.
      “No land shall hereafter be used or occupied except in conformity with all regulations herein applicable within the zone in which it is located.”
  • Septic permitRequired

    Existing or new private wastewater disposal systems inside La Plata town limits.

    • Before operation or construction, owner must obtain a written Town permit; application may require plans, specifications, and other information; Chapter 101 permit and inspection fee is due at filing; no permit when lot area is less than 43,560 square feet.

    minimum lot area for private wastewater permit: >= 43560 square feet

    “Before commencement of operation of an existing private wastewater disposal system or construction of a new private wastewater disposal system, the owner(s) shall first obtain a written permit supplied by the Chief Executive Officer.”
  • Off-grid sanitationLimited

    Property inside La Plata town limits where Town sanitary sewer is unavailable.

    • Private system must be approved by Town and Maryland State Health Department, comply with Charles County Department of Health and State recommendations, obtain Town permit and inspection, and connect to public sewer within 90 days when public sewer becomes available and building is within 200 feet, unless ratified agreement applies.

    public-sewer connection distance: <= 200 feet (When public sewer becomes available; unless ratified agreement applies)

    “Where the town sanitary sewer is not available under the provisions of this chapter, the building sewer shall be connected to a private wastewater disposal system complying with the provisions of this section.”
    One more reviewed finding on this topic
    • Limited — Private sewage-disposal methods inside La Plata town limits.
      “Any cesspool or private method of sewage disposal affecting or likely to affect adversely the public comfort and health may be deemed a nuisance and may be abated by the town.”
  • Mandatory utility hookupWater and sewer (with conditions)

    Property abutting a public way inside La Plata town limits where a Town water main or sanitary sewer is laid and declared ready for operation.

    • The owner must connect all fixtures after reasonable notice.
    • The Town may require abandonment, filling, removal, or safe treatment of cesspools, sinkdrains, and privies.
    • Connection charges may be imposed and payment arrangements must be made before connection.
    “When any water main or sanitary sewer is declared ready for operation by the town, all abutting property owners, after reasonable notice, shall connect all fixtures with the water or sewer main.”
  • Subdividing landRegulated (with conditions)

    Subdivision plats and development proposals inside La Plata town limits.

    • All development proposals and plans must undergo Technical Review Team review; all subdivision plats are also subject to Charles County Health Department review and approval.
    “All development proposals and plans must be reviewed by the TRT.”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Subdivision and land development inside La Plata town limits.
      “Ord 26-10 Chapter 173- Subdivision and Land Development (PDF)”
  • Building in a floodplainRequired

    Development or construction wholly or partly within, or in contact with, a flood hazard area inside La Plata town limits.

    • A Town floodplain permit is required before filling, grading, construction, substantial improvement, manufactured-home placement or replacement, temporary structures, or watercourse alteration.
    • MDE contact and additional state requirements may apply in non-tidal waters; the Town permit remains required in addition to state requirements.
    • In special flood hazard areas, development must comply with the standards in Article V.
    “It shall be unlawful for any person to begin any development or construction which is wholly within, partially within, or in contact with any flood hazard area established in accordance with Section 108-19 [...] until a permit is obtained from the Town of La Plata.”
  • Permit feesPublished (with conditions)

    Town building, utility, occupancy, and related permits inside La Plata town limits.

    • The Town publishes a Schedule of Fees link and identifies major facility fees for improvements served by Town water or sanitary sewer.
    • Fees may change on the Town's fiscal-year schedule.
    “Major Facility Fees - Major Facility Fees are levied to partially finance capital improvements to the water and sanitary sewer systems due to increased demand upon the system as a result of new development.”
    One more reviewed finding on this topic
    • Published (with conditions) — Permits inside La Plata town limits.
      “Major Facility Fees are levied to partially finance capital improvements to the water and sanitary sewer systems due to increased demand upon the system as a result of new development.”
  • Permit processPublished (with conditions)

    Building and development permit process inside La Plata town limits.

    • The Town publishes permit applications, a Building Permit Package Checklist, required application materials, and inspection contacts.
    • Additional documentation may be required; applicable approvals may include historic, design-review, planning, grading, stormwater, sediment-and-erosion, floodplain, HOA, and forest-conservation materials.
    “Once a permit is received, the review process begins. Each permit is different and has varying degrees of review and timing.”
    One more reviewed finding on this topic
    • Published (with conditions) — Development review and permit applicants inside La Plata town limits.
      “The Planning Department coordinates the review of development applications to determine compliance with the comprehensive plan, the La Plata Zoning Ordinance and other Town codes and regulations.”

Rules another office applies inside Town of La Plata

Town of La Plata does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Minimum lot sizeDistrict specific (with conditions)

    Detached dwelling units in La Plata R10 Residential Zone.

    minimum lot area: >= 10000 square feet · minimum lot width: >= 80 feet

    “R10 | 10,000 | 80 | 30% | 35 | 25 | 10 | 25”
    One more reviewed finding on this topic
  • SetbacksDistrict specific (with conditions)

    Detached dwelling units in La Plata R21 Residential Zone.

    front setback: >= 25 feet · side setback: >= 15 feet · rear setback: >= 25 feet

    “R21 | 21,000 | 100 | 20% | 40 | 25 | 15 | 25”
  • Lot coverageDistrict specific (with conditions)

    Detached dwelling units in La Plata R21 Residential Zone.

    maximum lot coverage: <= 20 percent

    “R21 | 21,000 | 100 | 20% | 40 | 25 | 15 | 25”
  • Building heightDistrict specific (with conditions)

    Detached dwelling units in La Plata R21 Residential Zone.

    maximum height: <= 40 feet

    “R21 | 21,000 | 100 | 20% | 40 | 25 | 15 | 25”
  • Driveway accessLimited

    Projects inside La Plata town limits located on a Charles County road, including Washington Avenue and Rosewick Road.

    • Applicant should contact Charles County Planning Department because access permit, stormwater review, or other permits may be required.
    “For projects located on a County Road (i.e. Washington Avenue, Rosewick Road) please contact the Charles County Planning Department as an access permit, Stormwater review, or other permits may be required.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Town of La Plata or Charles County directly.

  • Owner-builder exemption — Owner-builder exemption from La Plata building permits or inspections.
  • Minimum dwelling size — Minimum dwelling size inside La Plata town limits.
  • Living in an RV — Long-term RV occupancy on private land inside La Plata town limits.
  • Camping on your land — Temporary camping on private land inside La Plata town limits.
  • Tiny homes — Tiny-home occupancy inside La Plata town limits.
5 more unanswered
  • Manufactured homes
  • Accessory dwellings
  • Well permit
  • Agricultural exemption
  • Short-term rentals

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.

Unanswered questions are usually a sign that Town of La Plata publishes no rule on the point, not that none exists. Charles County’s page lists the county offices to call.

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