Bolthole Index

Barnstable County, Massachusetts

Building permits, zoning and septic in the Town of Eastham, Massachusetts

The Town of Eastham, Massachusetts requires residential building permits through municipal enforcement of the state building code; start with the Eastham Building Department.12 Eastham sets local zoning, and the Eastham Board of Health regulates septic systems and requires well construction permits.345 In Barnstable County, a camping permission rule does not settle whether you can live long-term in an RV in Eastham; ask the Building Department before planning that arrangement.62

At a glance

Building permits
Residential building permits required; contact the town Building Department12
Zoning
Town zoning applies; District F has Seashore-specific dimensions3
Septic permits
Disposal works construction permit with local Health Department review7
Private wells
Board of Health construction permit required before installation or alteration5
RV living
Long-term occupancy unconfirmed; ask the Building Department, beyond the camping permission rule62
Minimum home size
Single-family definition specifies 500 square feet on at least one floor; confirm application to your design8
Owner-builder
State registration exemption does not waive building permits or inspections9

Who to call

Building permits

Eastham Building Department

Building applications and inspection requests

774-801-3231

[email protected]

2500 State Highway Eastham MA 02642

Online permits →

Planning & zoning

Eastham Planning Division

Zoning and subdivision planning inquiries

508-240-5900, ext. 3228

2500 State Highway Eastham MA 02642

Health department

Eastham Health Department

Local septic and private-well applications under Board of Health regulations

508-240-5900, ext. 3230

2500 State Highway Eastham MA 02642

Also useful

Eastham Conservation Division

Wetlands and coastal-area activity review

508-240-5900

2500 State Highway Eastham MA 02642

Building permits

Eastham Online Permitting

Online application submission, departmental review, payment and permit-card access

2500 State Highway Eastham MA 02642

Online permits →

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

Off-grid gear

Going off-grid in Town of Eastham 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 Eastham, MA?

Residential building permits in Eastham are issued at the municipal level under the Massachusetts State Building Code.1 Local inspectors enforce the state code within their appointing town, and Eastham has established a local Building Code Board of Appeals.1011 A homeowner’s state registration exemption is not an exemption from building permits, inspections or certificates of occupancy.9 Ask the Eastham Building Department which building application and supporting documents your proposed home or alteration needs before scheduling work.2

Who handles building applications in the Town of Eastham?

The Eastham Building Department is at 2500 State Highway Eastham MA 02642; call 774-801-3231 or email [email protected] for building application questions.2 The department links to OpenGov for submitting and tracking applications and printing permit cards.2 Eastham’s current Building Department page directs inspection requests through OpenGov.2 The department also describes paper building applications and requires complete applications with supporting documents; ask the department which submission route suits your project.2 The Planning Division is the separate town contact for zoning and subdivision planning questions.12

Does the Town of Eastham have zoning, lot sizes and setbacks?

Eastham has local zoning, with dimensions that depend on the parcel’s district.3 In District F, the Seashore District, a dwelling lot must have at least 3 acres and 150 feet of frontage, with buildings at least 50 feet from streets and 25 feet from abutters’ property lines.3 Those District F dimensions should not be applied to every Eastham parcel.3 District F owners are advised to consult the Cape Cod National Seashore before seeking building permits or other approvals.13 Ask the Eastham Planning Division to identify the parcel’s zoning district and applicable bylaw before fitting a house, septic layout and access onto the lot.123

How do septic permits and well permits work in the Town of Eastham?

The Eastham Board of Health supplements the state septic code with local regulations.4 New or altered disposal works require an application, soils evaluation and percolation testing observed by the Health Department.7 The application includes the fee, a licensed Eastham installer, site and sewage plans, a building floor plan and Conservation Commission approval when applicable.7 A new well or municipal-water connection included in the septic design needs additional approval or certification before septic approval.7 No well may be installed or altered before a Board of Health well construction permit is obtained, and the work must be performed by a registered well driller.5 Coordinate water and wastewater design with the Eastham Health Department.147

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

Eastham prohibits camping, habitation-adapted vehicles and sleeping outdoors or in vehicles between 8:00 p.m. and 8:00 a.m. without the property owner’s permission.6 That permission condition does not establish a complete answer for long-term residential RV occupancy; we could not confirm that arrangement, so ask the Building Department about the proposed use before buying an RV for the site.62 Eastham’s single-family dwelling definition specifies at least 500 square feet of floor area on at least one floor, excluding porches and similar outdoor areas.8 Massachusetts’ seasonal-community tiny-house provision depends on municipal adoption and compliance with state and local building codes; it does not itself establish an Eastham approval.15 Ask Planning how the current bylaw applies to your exact tiny-home design.12

What are the steps to building a home in the Town of Eastham?

  1. Ask Eastham Planning to identify the zoning district and applicable dimensions; District F also calls for consultation with the Cape Cod National Seashore.1213
  2. Arrange local Health Department review of soils, septic plans and any new well or municipal-water connection included in the design.7
  3. Ask Conservation whether wetlands or coastal buffer areas require activity review.16
  4. Obtain an official property address for a vacant lot before permit activity, then prepare the building application with the Building Department.172
  5. Complete required departmental approvals, respond to the payment notification and print the building permit card for display during work.17
  6. Follow the Building Department’s current OpenGov instructions for inspection requests.2

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

For an Eastham property transfer, local rules require a septic inspection by an approved licensed inspector, subject to exceptions including a recent inspection approved by the Health Agent; the prospective owner must furnish the report to the Health Department before closing.18 Ask Health to confirm which exception, if any, applies to the sale.18 Conservation reviews certain activities in wetlands and their buffer areas, so include that office in a coastal or wetland parcel review.16 We could not confirm a general mandatory public-water or sewer connection rule for Eastham; ask Health about the specific parcel and proposed septic design.714 For county context outside Eastham, see Barnstable County; zoning remains a town-level matter across the county.19

Watch-outs

  • District F’s Seashore dimensions apply to that district, not automatically to every Eastham lot.3
  • Owner permission under Eastham’s camping rule does not confirm approval for long-term RV housing; ask the Building Department.62
  • Before designing a small single-family home, ask Planning how Eastham’s 500-square-foot definition applies to the proposal.812

Sources

  1. Mass.gov - Massachusetts State Building Code (780 CMR) (2026 county census)
  2. Eastham Building Department (eastham-ma.gov)
  3. eastham-ma.gov (Town of Eastham), quoted and re-checked
  4. Chapter 301: Septic Systems - Town of Eastham, MA (Town of Eastham), quoted and re-checked
  5. Chapter 302: Drinking Water - Town of Eastham, MA (Town of Eastham), quoted and re-checked
  6. Chapter 42: Camping - Town of Eastham, MA (Town of Eastham), quoted and re-checked
  7. Chapter 301: Septic Systems - Town of Eastham, MA (Town of Eastham), quoted and re-checked
  8. Eastham Zoning Bylaw Effective May 4, 2026 (Town of Eastham), quoted and re-checked
  9. Massachusetts General Laws, Chapter 142A, Section 14 (Massachusetts statewide rule), quoted and re-checked
  10. Massachusetts General Laws, Chapter 143, Section 3A: Enforcement of state building code (Massachusetts statewide rule), quoted and re-checked
  11. Chapter 33: Building Construction - Town of Eastham, MA (Town of Eastham), quoted and re-checked
  12. Eastham Planning Division (eastham-ma.gov)
  13. eastham-ma.gov (Town of Eastham), quoted and re-checked
  14. Eastham Health Department (eastham-ma.gov)
  15. Massachusetts General Laws Chapter 23B, Section 32 (Massachusetts statewide rule), quoted and re-checked
  16. Eastham Conservation Division (eastham-ma.gov)
  17. Eastham Online Permitting (eastham-ma.gov)
  18. Chapter 301: Septic Systems - Town of Eastham, MA (Town of Eastham), quoted and re-checked
  19. Filing for Project Review, quoted and re-checked

Written October 12, 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 Eastham

Town of Eastham’s own rules

  • Building code adoptedPartial

    Building-code appeals and enforcement inside Eastham town under the Massachusetts State Building Code.

    • The cited town chapter establishes a local Building Code Board of Appeals; the underlying construction code is the Massachusetts State Building Code.
    “there is hereby established in the Town of Eastham a Building Code Board of Appeals”
  • Minimum dwelling sizeSpecified

    Single-family dwellings inside Eastham town.

    • The definition excludes porches, sundecks, patios, raised terraces, and similar items.

    minimum floor area: >= 500 square feet (at least one floor)

    “A building containing living quarters for one (1) family, having not less than 500 square feet of floor area on at least one floor, exclusive of porches, sundecks, patios, raised terraces or similar items, and containing a kitchen, a bathroom containing a toilet, a lavatory, a tub and/or shower, a living room, and a bedroom or any reasonably similar combination of rooms.”
  • Minimum lot sizeSpecified

    Dwellings in District F (Seashore District).

    • All lots must have at least 150 feet of frontage.
    • Dwellings and buildings must have a 50-foot street setback and 25-foot distance from abutters' property lines.

    minimum lot area: >= 3 acres

    “In the Seashore District F, no dwelling shall be built upon a lot with an area of less than three (3) acres. All lots in the Seashore District F shall have frontage of at least 150 feet and all dwellings and buildings shall be located to provide at least a 50 foot setback from all streets measured at a right angle with the street line and a 25 foot distance from abutters’ property lines.”
  • SetbacksSpecified

    Dwellings and buildings in District F (Seashore District).

    • The street setback is measured at a right angle with the street line.
    • District F property owners are advised to consult the Cape Cod National Seashore before permits or approvals.

    street setback: >= 50 feet · abutters' property-line setback: >= 25 feet

    “All lots in the Seashore District F shall have frontage of at least 150 feet and all dwellings and buildings shall be located to provide at least a 50 foot setback from all streets measured at a right angle with the street line and a 25 foot distance from abutters’ property lines.”
  • Camping on your landLimited

    Camping, tents, habitation-adapted vehicles, and sleeping outdoors or in vehicles inside Eastham town.

    • Between 8:00 p.m. and 8:00 a.m., the conduct is prohibited unless the property owner gives permission.
    • The rule applies on public and private property within the territorial limits of Eastham.

    restricted hours: 8:00 p.m.–8:00 a.m. (permission of the owner)

    “No person shall, between the hours of 8:00 p.m. and 8:00 a.m. set up on any property, public or private, without permission”
  • Who permits septicLocal

    On-site sewage disposal systems inside Eastham town; the Eastham Board of Health is the local rule-maker supplementing state Title 5.

    • The town regulation supplements 310 CMR 15.00, the State Environmental Code.
    “In accordance with MGL, c. 111, § 31, the Eastham Board of Health has adopted the following regulation to supplement the provisions of 310 CMR 15.00: The State Environmental Code.”
  • Septic permitRequired

    New or altered disposal works inside Eastham town.

    • The process requires soils evaluation and percolation testing observed by the Health Department.
    • The application must include the application fee, licensed Eastham installer, two sets of site and sewage plans, building floor plan, hoisting license if applicable, and Conservation Commission approval if applicable.
    • Permits are valid for three years, except Title V variances, which are valid for one year unless otherwise specified.
    • If a new well or municipal-water connection is part of the design, additional approval or certification is required before septic approval.
    “completed application for a disposal works construction permit”
  • Septic inspectionRequired

    Sewage disposal systems on property transferred by sale, exchange, gift, or bequest inside Eastham town.

    • Inspection must be by a licensed inspector approved by Massachusetts DEP.
    • The inspection is not required if the system was inspected within the prior two years and the Health Agent approved the results.
    • The regulation is not effective at conveyance or devise to a surviving spouse.
    • The prospective new owner must furnish the report to the Health Department before closing.
    “shall be inspected by a licensed inspector”
  • Well permitRequired

    Installation or alteration of wells inside Eastham town.

    • The well must be installed or altered by a registered well driller.
    • The permit expires six months after issuance unless construction has begun; a six-month extension may be granted at no additional cost.
    • The drilling contractor or agent submits the application; the driller is responsible for obtaining the permit before construction.
    • The fee is determined by the Eastham Board of Selectmen.
    “No well shall be installed, or altered, until a well construction permit has been obtained from the Board of Health.”

Still unanswered

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

  • Building permit — Building permits for construction inside Eastham town.
  • Owner-builder exemption — Owner-builder exemptions inside Eastham town.
  • Inspections — Building inspections inside Eastham town.
  • Certificate of occupancy — Certificates of occupancy or use inside Eastham town.
  • Building height — General residential building height inside Eastham town.
10 more unanswered
  • Living in an RV
  • Tiny homes
  • Manufactured homes
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Permit fees
  • 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.

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

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