Homes With In Law Suite Braintree MA
About 1 in 7 Braintree single-family houses sold over the last two years came with an in-law suite or accessory apartment — 58 of 432, going by listing descriptions and the MLS ADU field. They sold at a median of $900,000, against $723,000 for houses without one. Matched on size — comparing houses of similar living area — houses with an in-law or accessory unit sold for about 4% less than comparable houses without one.
Current listings (11)
Open Sun, Nov 1 · 12 PM–2 PM
Open Sun, Nov 1 · 11 AM–12:30 PM
New
Open Sun, Nov 1 · 11:30 AM–1:30 PM
Open Sun, Nov 1 · 12 PM–2 PM
In-law suites in Braintree: how often, and at what price
Nov 5, 2024 – Oct 30, 2026 · updated Nov 1, 2026
Size for size
Median sale price within each living-area band. A median is shown only where that side has 10+ sales.
| Living area | With in-law: sales | Median | Without: sales | Median |
|---|---|---|---|---|
| under 1,400 sq ft | 1 | too few | 105 | $580,000 |
| 1,400–1,999 sq ft | 12 | $742,000 | 145 | $705,000 |
| 2,000–2,799 sq ft | 19 | $880,000 | 76 | $856,500 |
| 2,800+ sq ft | 26 | $1,070,000 | 48 | $1,247,500 |
Source: MLS PIN closed sales via Bridge, Braintree only, Nov 5, 2024 – Oct 30, 2026. Medians, not averages. Sales where Justin Rollo or his team was an agent are left out. Based on information provided to and compiled by MLS Property Information Network, Inc. covering the period Nov 5, 2024 through Oct 30, 2026. In-law = the listing description mentions an in-law, accessory or au-pair unit, or the MLS ADU field is “Yes”. A house whose listing never mentioned one is counted as “without”.
See new Braintree listings first
Get a heads-up from Justin Rollo of Signal Real Estate the moment a matching home hits the Braintree market.
Listings here are curated by Justin Rollo of Signal Real Estate, a local agent who works this market every day.
Recently sold nearby
A read on what’s actually trading — recent closed sales.
Related searches
- 4 Bedroom Homes For Sale Braintree MA
- Cape Homes For Sale Braintree MA
- Colonial Homes For Sale Braintree MA
- Fixer Upper Homes For Sale Braintree MA
- Homes For Sale Near Braintree High School
- Homes For Sale Near Braintree Station Red Line
- Homes For Sale Near East Middle School Braintree
- Homes For Sale Near Flaherty Elementary Braintree
Questions & answers
How many Braintree houses have an in-law apartment?
58 of 432 single-family sales over the last 24 months (13%) mentioned an in-law suite or accessory apartment in the listing (or flagged an ADU in the MLS). They sold at a median of $900,000, against $723,000 for the rest.
Do houses with an in-law suite sell for more in Braintree?
About 4% less on a like-for-like basis. We compared median prices within size bands (1,400–1,999 sq ft, 2,000–2,799 sq ft, 2,800+ sq ft) where each side had at least 10 sales. The plain medians differ by 24%, but houses with an in-law or accessory unit were also larger (a median 2,718 sq ft against 1,674), and size explains much of that gap.
Can I add an in-law apartment to a Braintree house?
Since February 2, 2025, Massachusetts law allows one accessory dwelling unit by right on a lot with a single-family house, up to 900 sq ft or half the main house’s floor area, whichever is smaller. Local site and building rules still apply, so check with the Braintree Building Department before you plan on one.
How do I hear about new listings first?
Sign up above and Justin Rollo of Signal Real Estate will send matching Braintree listings as soon as they come up.
