Home Additions in Hanover, MA

Hanover, MA at a glance

County

Plymouth County, Massachusetts · 7 places we serve there

From our base

About 45 miles east

Building permits

Hanover'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

25 mi northwest of Hanover

Our documented addition and other work, by distance:

• Mansfield, MA: kitchen remodel 22 mi west
• Needham, MA: porch addition 25 mi northwest
• Lynnfield, MA: addition and exterior remodel 32 mi north
• Lynnfield, MA: addition framing video 32 mi north
• Framingham, MA: client review of our kitchen remodel 33 mi west
• Marlborough, MA: client review of our first-floor remodel 41 mi northwest
• Westborough, MA: client review of our new siding and windows 43 mi west
• Hudson, MA: client review of our bathroom remodel 43 mi northwest
• Northborough, MA: client review of our deck and small addition 45 mi west
• Shrewsbury, MA: client review of our kitchen and bathroom remodel 48 mi west
• Salem, NH: pool deck 51 mi northwest

Permits and rules in Hanover, MA

An addition needs a building permit from Hanover'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.