Zoning, building permits and septic rules in Braintree Town, Massachusetts

Braintree Town’s own rules

• Local zoningPresent

  Land inside Braintree Town city limits. The Town of Braintree adopts and administers its own zoning ordinance, Chapter 135 Zoning Ordinances, which includes dimensional regulations, district tables and use tables.

  • The eCode360 code landing page lists Chapter 135 as the zoning ordinance; the full district tables were not captured in this research pass.

  “chapter 135 zoning ordinances (§135-101 – §135-1806)”

• SetbacksSpecified

  Principal buildings in an established neighborhood inside Braintree Town city limits (general rule in Article VII; not district-specific)

  • Front setback may be the average of the setbacks of other buildings within 200 feet of the locus on the same side of the street.
  • Lot width between the street line and principal building must be at least 40% of the minimum lot width, and minimum lot width must be maintained to a point 20 feet beyond the rear of the principal building.
  • Attached garages are part of the main building (§135-701 note (6)).

  front setback averaging radius: 200 feet (Only in an established neighborhood)

  “in an established neighborhood, the front setback may be the average of the setbacks of the other buildings within 200 feet of the locus on the same side of the street.”

  2 more reviewed findings on this topic

  • District specific (with conditions) — Accessory use structures and buildings (not principal single-family dwellings) in the Residence A (RA) district inside Braintree Town city limits

    “ra rb rc c123 gb hb com osc setbacks minimum setbacks side 5 5 5 5 5 30 20 50 rear 5 5 5 5 5 50 35 100”

  • District specific (with conditions) — Accessory use structures and buildings (not principal single-family dwellings) in the Residence B (RB) district inside Braintree Town city limits

    “ra rb rc c123 gb hb com osc setbacks minimum setbacks side 5 5 5 5 5 30 20 50 rear 5 5 5 5 5 50 35 100”

• Building heightDistrict specific (with conditions)

  Accessory use structures and buildings (not principal dwellings) in the Residence A (RA) district inside Braintree Town city limits

  • Maximum height may be extended by holding a 1:1 rear setback to building height ratio.
  • Chimneys, elevator penthouses and similar features are excluded from height limits only for principal buildings under note (3); not applied here.
  • Effective date shown on the section header is the amendment stamp 9-16-2025 by order no. 25-003; not treated as effective_at.

  maximum building height, accessory structure: <= 18 feet (May be extended by 1:1 rear setback to building height ratio, but not beyond 28 feet and 2.5 stories) · maximum stories, accessory structure: <= 1.5 stories (Overall cap 2.5 stories)

  “maximum building height* feet (linear feet) 18 18 18 18 18 18 18 18 stories 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 notes: * maximum building height may be extended by holding a 1:1 rear setback to building height ratio. the maximum allowed building height for any accessory structure shall not exceed 28 feet and 2.5 stories.”

  One more reviewed finding on this topic

  • District specific (with conditions) — Accessory use structures and buildings (not principal dwellings) in the Residence B (RB) district inside Braintree Town city limits

    “maximum building height* feet (linear feet) 18 18 18 18 18 18 18 18 stories 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 notes: * maximum building height may be extended by holding a 1:1 rear setback to building height ratio. the maximum allowed building height for any accessory structure shall not exceed 28 feet and 2.5 stories.”

• Subdividing landRegulated (with conditions)

  Land division into lots inside Braintree Town city limits, administered by the Planning Board under the Braintree subdivision rules and regulations

  • Development requiring definitive subdivision approval, site plan review or special permit must submit landscape and tree protection plans (§135-702 applicability).
  • Upgrades to ways required for subdivision must follow the Braintree subdivision rules and regulations and a performance guarantee under MGL c. 41 §81U.

  “said upgrading shall be performed in accordance with the braintree subdivision rules and regulations and the planning board shall require a performance guarantee in accordance with the provisions of mgl c. 41, § 81u.”

• Driveway accessLimited

  Driveways serving lots inside Braintree Town city limits, under Article VII area regulations (general rule, not district-specific)

  • Grade changes must be made by smooth transitional vertical curves.
  • Driveways must be graded or drained so rainwater does not enter a structure.
  • Access permit, curb-cut or street-opening rules in Chapter 12 (Streets, Sidewalks and Public Places) were not opened.

  maximum driveway grade: <= 12 percent (None stated)

  “no driveway shall exceed a maximum grade of 12%. all changes in grade shall be by means of smooth transitional vertical curves. driveways shall be graded or drained so as to prevent rainwater from entering a structure.”

Still unanswered

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

• Building permit — Construction inside Braintree Town city limits
• Owner-builder exemption — Owner-builder construction inside Braintree Town city limits
• Building code adopted — Building code enforcement inside Braintree Town city limits
• Inspections — Construction inspections inside Braintree Town city limits
• Certificate of occupancy — Certificate of occupancy for new dwellings inside Braintree Town city limits

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.

Off-grid gear

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

• Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
• Power Bluetti Solar generators and home battery backup for living off the grid.
• Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
• Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.

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