Bolthole Index

Middlesex County, Massachusetts

Building permits, zoning and septic in the Town of Sherborn, MA

The Town of Sherborn, Massachusetts requires building permits through the Building Commissioner and applies its own zoning bylaw.12 Sherborn’s Board of Health administers septic requirements alongside Massachusetts Title 5 and handles well permits.34 For a new dwelling, driveway approval must come before the foundation or building permit.5

At a glance

Building permits
Required; apply to the town Building Commissioner1
Zoning
Town zoning bylaw and mapped districts apply26
Septic
Sherborn Board of Health; Massachusetts Title 5 also applies3
Wells
Town Board of Health permit for new, repaired or emergency replacement wells4
Driveways
DPW approval before a new dwelling’s foundation or building permit5
Accessory dwellings
Allowed subject to the applicable protected-use or special-permit conditions7

Who to call

Building permits

Sherborn Building Department

Building applications and inspections in Sherborn

508-651-7870

[email protected]

19 Washington Street Sherborn MA 01770

Online permits →

Zoning

Sherborn Planning Board

Subdivision, business site-plan and certain special-permit review

508-651-7855

[email protected]

19 Washington Street Sherborn MA 01770

Septic permits

Sherborn Board of Health

Local septic and well requirements

508-651-7852

19 Washington Street Sherborn, MA 01770

Roads & driveways

Sherborn Department of Public Works

Driveway and curb-cut applications

508-651-7878

7 Butler Street Sherborn MA 01770

Floodplain permits

Sherborn Conservation Commission

Conservation review associated with applicable building applications

508-651-7863

19 Washington Street Sherborn MA 01770

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 Sherborn 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 Sherborn, MA?

Sherborn requires applications for construction, reconstruction, alteration, repair, demolition, removal and changes in building use or occupancy to go to the Building Commissioner.1 The Building Commissioner issues a building permit when the work meets the State Building Code and Sherborn zoning requirements; applicable applications must also carry required Conservation Commission and Board of Health approvals or notations.1 Sherborn’s Specialized Energy Code applies to residential and commercial buildings, effective January 1, 2024, so include energy-code compliance in the proposed design.8

Who issues building permits in the Town of Sherborn?

The Sherborn Building Department is the town contact for building applications, and the department accepts building, electrical, plumbing, gas and sheet-metal applications online.9 Use the online portal linked above to submit a building application, and ask the Building Department which inspections your project needs.9 Sherborn lists building inspections on Mondays, Wednesdays and Fridays.9 For subdivision, business site-plan or certain special-permit questions, contact the Sherborn Planning Board as well as the Building Department.10

Does the Town of Sherborn have zoning?

Sherborn has its own zoning bylaw, with Residence A, B, C and EA districts, Business G and P districts, and overlay districts.26 The zoning map is incorporated into the bylaw and is on file with the Town Clerk; identify the parcel’s district before asking the Planning Board about lot size or setbacks.610 Sherborn allows accessory dwellings subject to protected-use or special-permit conditions; special-permit ADUs require owner occupancy and have a maximum floor area of 1,200 square feet.7 Sherborn ADUs may only be rented or licensed for occupancy for terms longer than 30 days.7

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

Sherborn’s Board of Health administers local on-site sewage requirements, and Massachusetts Title 5 also applies.3 Contact the town Board of Health about the septic proposal before treating a parcel as ready for a house: applicable building applications need Board of Health approvals or notations.31 New wells, well repairs and emergency replacement wells require permits administered through Sherborn’s Board of Health.4 Ask that office to coordinate the proposed water supply and sewage-disposal plan with the building application.431

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

We could not confirm a Sherborn rule allowing residential RV occupancy, temporary camping or tiny-home occupancy on private land; ask the Building Department about the specific structure, use and duration before buying it.9 Sherborn requires an application for changes in building use or occupancy, so a small structure’s intended residential use belongs in the building-permit discussion.1 A Sherborn accessory dwelling is a separate option with its own protected-use or special-permit conditions; those ADU provisions do not establish permission to occupy an RV.7

Building a home in the Town of Sherborn: what comes first?

  1. Identify the parcel’s zoning district using the map on file with the Town Clerk, then discuss any subdivision or special-permit review with the Planning Board.610
  2. Discuss septic and well approvals with Sherborn’s Board of Health and obtain applicable Conservation Commission approvals or notations for the building application.341
  3. Obtain the DPW driveway permit before applying for a new dwelling’s foundation or building permit.5
  4. Submit the building application to the Building Commissioner with the required supporting approvals.1

Sherborn requires a permit for all proposed construction or other development in its Flood Plain District, including agricultural facilities and manufactured homes.11 For land outside Sherborn, consult the Middlesex County guide.

Watch-outs

  • Sherborn driveways longer than 500 feet have additional standards, including a minimum width of 14 feet and a maximum grade of 8%.5
  • We could not confirm Sherborn’s minimum dwelling size or an owner-builder exemption from building permits; ask the Building Department before relying on either.9
  • Sherborn’s Flood Plain District permit requirement reaches beyond houses to fences, sheds, paving and other development that might increase flooding or affect other properties’ flood risks.11

Sources

  1. Zoning By-Laws (Town of Sherborn), quoted and re-checked
  2. Table of Contents - Town of Sherborn, MA (Town of Sherborn), quoted and re-checked
  3. sherbornma.org (Town of Sherborn), quoted and re-checked
  4. Applications, Procedures, and Permits (Town of Sherborn), quoted and re-checked
  5. Chapter 125: Driveways (Town of Sherborn), quoted and re-checked
  6. Article II: Establishment of Districts (Town of Sherborn), quoted and re-checked
  7. Article III: Use Regulations (Town of Sherborn), quoted and re-checked
  8. Chapter 112: Buildings and Building Construction (Town of Sherborn), quoted and re-checked
  9. Sherborn Building Department (sherbornma.org)
  10. Sherborn Planning Board (sherbornma.org)
  11. Article V: Special Regulations (Town of Sherborn), 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 Sherborn

Town of Sherborn’s own rules

  • Building permitRequired

    Construction, reconstruction, alteration, repair, demolition, removal, or change in use or occupancy of buildings and structures inside Sherborn town.

    • Applications must be submitted to the Building Commissioner in accordance with 780 CMR.
    • Required Conservation Commission and Board of Health approvals or notations must accompany applicable applications.
    • The Building Commissioner issues the permit when the work conforms to the State Building Code and zoning requirements.
    “All applications for the construction, reconstruction, alteration, repair, demolition, removal or change in use or occupancy of buildings and structures shall be submitted to the Building Commissioner in accordance with the State Building Code 780 CMR.”
  • Building code adoptedPartial

    Residential and commercial buildings inside Sherborn town, for the town-adopted Specialized Energy Code.

    • The Specialized Energy Code is incorporated by reference.
    • The code is enforceable by the Inspector of Buildings or Building Commissioner.
    • Effective January 1, 2024.

    effective date: 2024-01-01

    “The Specialized Energy Code applies to residential and commercial buildings effective on January 1, 2024.”
  • Local zoningPresent

    Land inside Sherborn town; Town of Sherborn zoning bylaw.

    • The code includes amendments through the dates stated on the code page.
    “The Town of Sherborn is hereby divided into the following classes of district:”
  • Zoning districtsPublished

    Zoning districts and mapped overlays inside Sherborn town.

    • The zoning map is incorporated into the zoning bylaw and is on file with the Town Clerk.
    • District classes include Residence A, B, C, EA, Business G, Business P, and listed overlay districts.
    “All districts are located and bounded as shown on a map entitled "Zoning Map Town of Sherborn," as amended, and on file in the office of the Town Clerk.”
  • Accessory dwellingsAllowed (with conditions)

    Accessory dwelling units on lots in Sherborn town.

    • Only one Protected Use ADU on a lot may qualify.
    • Protected Use ADUs apply to lots in a Single-Family Residential Zoning District.
    • Special Permit ADUs require owner occupancy, a maximum 1,200 square feet, a special permit, and additional stated conditions.
    • ADUs may only be rented or licensed for occupancy for terms of more than 30 days.

    maximum gross floor area for special permit ADU: <= 1200 sq ft · minimum rental or license term: > 30 days

    “Protected Use Accessory Dwelling Units. This use is allowed in all Districts.”
  • Who permits septicMixed (with conditions)

    On-site sewage disposal inside Sherborn town.

    • The Sherborn Board of Health administers local requirements.
    • Massachusetts Title 5 also applies.
    “The Board of Health and its Agent enforce the state and local health and environmental codes.”
  • Well permitRequired

    New, repaired, or emergency replacement wells inside Sherborn town.

    • Applications and procedures are administered through the Sherborn Board of Health.
    • Specific exemptions were not established in the opened sources.
    “Application for a Well Construction Permit”
  • Driveway accessRequired

    New or substantially altered driveways serving property inside Sherborn town.

    • A written permit from the Director of Public Works is required before construction or substantial alteration at the intersection with a public street or private way.
    • A new dwelling cannot receive a foundation or building permit until the driveway permit is obtained.
    • Driveways exceeding 500 feet have additional standards, including 14-foot minimum width, 15.5-foot vertical clearance, maximum 8% grade, and 40-foot minimum turning radii.
    • The bylaw does not apply to driveways existing on its effective date or their repair or replacement.

    long driveway threshold: > 500 feet · minimum width for long driveway: >= 14 feet · maximum grade for long driveway: <= 8 percent

    “No driveway shall be constructed or substantially altered at the point of intersection with a public street or private way unless a written permit is first obtained from the Director of Public Works in accordance with rules and regulations adopted by the Select Board.”

Rules another office applies inside Town of Sherborn

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

  • Building in a floodplainRequired

    All proposed construction and other development in Sherborn's Flood Plain District.

    • The permit requirement covers new construction, changes to existing buildings, manufactured homes, agricultural facilities, fences, sheds, storage facilities, drilling, mining, paving, and other development that might increase flooding or adversely impact other properties.
    • All development must comply with M.G.L. c. 131 § 40, applicable State Building Code floodplain provisions, wetlands regulations, Inland Wetlands Restriction, and Title 5.
    • The district is based on FEMA special flood hazard areas and the Middlesex County FIRM/FIS.
    “The Town of Sherborn requires a permit for all proposed construction or other development in the Flood Plain District, including new construction or changes to existing buildings, placement of manufactured homes, placement of agricultural facilities, fences, sheds, storage facilities or drilling, mining, paving and any other development that might increase flooding or adversely impact flood risks to other properties.”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemptions from building permit or inspection requirements inside Sherborn town.
  • Inspections — Building inspections inside Sherborn town.
  • Certificate of occupancy — Certificates of occupancy for buildings inside Sherborn town.
  • Minimum dwelling size — Single-family and other dwellings inside Sherborn town.
  • Living in an RV — Long-term or residential RV occupancy on private land inside Sherborn town.
8 more unanswered
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Off-grid sanitation
  • Mandatory utility hookup
  • Agricultural exemption
  • Short-term rentals
  • Permit fees

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 Sherborn publishes no rule on the point, not that none exists. Middlesex County’s page lists the county offices to call.

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