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Zoning Guide

Medford Zoning & Land Use Guide

Data-only stub — facts unverified locally. Confirm with the planning department before relying on details.
Last updated: Verified:

What we have on file vs. what to verify locally

We don't have editor-verified zoning prose for Medfordyet. Here's the structured data we do have, and the highest-leverage steps to confirm specifics for your parcel.

What we have on file

Population:
63,898
County:
Middlesex County
State building code:
MA State Building Code 10th Edition (based on 2021 IBC)(statewide default)
State ADU law:
Yes — Section 8 of Chapter 150 of the Acts of 2024 (the Affordable Homes Act) amends MGL Chapter 40A Section 3 to require municipalities to allow a single accessory dwelling unit by right in single-family residential zoning districts, prohibiting zoning ordinances from banning ADUs or requiring a special permit, though reasonable site-plan, dimensional, and short-term rental regulations remain allowed. The provisions took effect February 2, 2025. The 2020 MBTA Communities Act (Chapter 358) separately mandates multifamily-by-right zoning near transit.
FEMA flood map:
Search flood zones
Planning department:
City of Medford Planning Department
Municipal code:
View code online

Verify these locally

  • Call the City of Medford Planning Department: (781) 393-2480
  • Search the municipal code for the chapter that covers your zoning district and proposed use.
  • Check FEMA flood zone for your parcel — flood-zone status changes setbacks, foundation requirements, and insurance.
  • Check your HOA CC&Rs and recorded deed restrictions — they are common in Medford and frequently restrict ADUs, fences, and exterior changes beyond what zoning allows.

Key Zoning Facts

Planning Department
City of Medford Planning Department(781) 393-2480
Building Code Edition
MA State Building Code (780 CMR, based on 2021 IBC)
ADUs Allowed
Yes

Regulatory Layers That Apply in Medford

Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.

Federal

State — Massachusetts

  • Building Code: MA State Building Code (780 CMR, based on 2021 IBC)
  • State ADU Override: Yes (MA ADU Law (2024) — requires single-family zones to allow ADUs by right)
View Massachusetts zoning overview

County — Middlesex County

    City / Municipal

    The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.

    Overlay Districts

    No overlay districts identified.

    Private Restrictions

    • HOA / CC&Rs common: Yes
    • Check HOA CC&Rs for additional restrictions.

    Statewide Context (Massachusetts)

    Local data for Medford is limited. The following state-level facts apply across Massachusetts and are inherited by this page until city-specific details are verified.

    State Building Code
    MA State Building Code 10th Edition (based on 2021 IBC)
    State ADU Preemption
    Yes — state law overrides local rules
    Coastal Zone
    Yes
    Wildfire Zones
    No

    ADU Rules in Medford

    ADUs:Allowed
    Max Size
    900 sq ft
    Max Height
    20 ft
    Rear Setback
    5 ft
    Side Setback
    5 ft
    Parking
    No additional parking required
    Owner Occupancy
    Not required under state ADU law
    Permit Timeline
    45-75 days

    Permit Costs & Timelines

    Permit Costs & Timelines

    Specific permit fee schedules for Medford are available from the local planning department. Fees vary based on project type, scope, and valuation.

    Check Medford permit fees →

    Official Sources

    City-specific

    City of Medford Planning Departmentmedfordma.orgOfficial sourceMedford Municipal Codelibrary.municode.comOfficial source