Home Additions in Brookline, MA

Brookline, MA at a glance

County

Norfolk County, Massachusetts · 27 places we serve there

From our base

About 27 miles east

Building permits

Brookline's building department

Contractor rules

MA Home Improvement Contractor registration (M.G.L. c.142A)

Nearest documented addition project

Front Porch Addition in Needham, MA

7 mi southwest of Brookline

Our documented addition and other work, by distance:

• Needham, MA: porch addition 7 mi southwest
• Lynnfield, MA: addition and exterior remodel 15 mi north
• Lynnfield, MA: addition framing video 15 mi north
• Framingham, MA: client review of our kitchen remodel 16 mi west
• Mansfield, MA: kitchen remodel 21 mi south
• Marlborough, MA: client review of our first-floor remodel 22 mi west
• Hudson, MA: client review of our bathroom remodel 23 mi west
• Westborough, MA: client review of our new siding and windows 26 mi west
• Northborough, MA: client review of our deck and small addition 27 mi west
• Shrewsbury, MA: client review of our kitchen and bathroom remodel 30 mi west
• Salem, NH: pool deck 32 mi north

Permits and rules in Brookline, MA

An addition needs a building permit from Brookline's building department and must meet local zoning rules such as setbacks. On septic, an added bedroom also needs Board of Health review under Title 5. Since February 2, 2025, one accessory dwelling unit, up to 900 square feet or half the main house if smaller, is allowed by right in single-family zones.

What's included

• Room & second-story additions
• In-law suites (ADUs)
• Sunrooms & porches
• Designer & engineer coordination

Costs and timelines: our home additions guide

How Much Does a Home Addition Cost in Massachusetts?

Distances: straight line, GeoNames data (CC BY 4.0). Updated October 8, 2026.