40 Walnut St, Braintree, MA 02184

The property

TypeSingle-family

StyleOld style

Year built1900

Living area4,396 sq ft

Rooms8

Lot0.5 acres

Assessed value$1,463,900 (FY 2025)

Source: Braintree Assessor via MassGIS, fiscal year 2025. Not MLS data.

Market position

Where this home sits in Braintree's market

Sale price, 2019

$714,711

High endof Braintree

90th

86th

EntryMiddleHigh end

All Braintree salesAmong single-family homes

Higher than 90% of Braintree sales in 2019 (median $486,000); the median for single-family homes was $527,500.

Price per sq ft, 2019

$163

Entry levelof Braintree

2nd

EntryMiddleHigh end

All Braintree salesAmong single-family homes

Higher than 2% of Braintree sales in 2019 per square foot (median $304); $295 for single-family homes.

Within half a mile of Walnut St

Scored against every street in Braintree.

Market speed

Sells a bit slower than most of Braintree

Days to an accepted offer and sale-to-asking, last 2 years

vs every Braintree street

Market activity

Homes here rarely change hands

How often homes sold, last 5 years

vs every Braintree street

Price level

Among the higher-priced parts of Braintree

Sold for about 11% above the Braintree median for their year and type

vs every Braintree street

The numbers behind these scores →

Braintree, head to head

Condos vs single-family

Condos

Among the coolest stretches since 2016

19 days to an offer, 98.9% of asking in the last 12 months. Hottest: 2022.

Single-family

About an average year since 2016

8 days to an offer, 100.6% of asking in the last 12 months. Hottest: 2020.

CondosSingle-family

Price per sq ft

$424

$412

Price change, 1 year

+3.2%

+3.4%

Days to an accepted offer

Sold over asking

33%

52%

Heat compares the last 12 months' days to offer and sale-to-asking with every year since 2016 (100 = the hottest it has been). From MLS PIN closed sales in Braintree; condos and single-family homes only.

Scores run 1–100; 50 is typical. Prices are placed among Braintree MLS PIN closed sales of the same year, so an older sale is judged against the prices of its own time. This sale price is from the deed record. A past or asking price only: we don't estimate what any home is worth. Scores describe how the market behaves, not the home or its neighbors.

Zoning, taxes & the land

Zoning	Residence B (B). Confirm with the town before you plan around it.
In-law / accessory unit	A single-family home in a district that allows single-family homes by right. Under the 2025 state ADU law, one accessory dwelling up to 900 sq ft (or half the house, if smaller) is generally allowed here without a special permit. Site rules like setbacks and parking still apply.
Property tax, FY2025	About $14,610 a year (assessed $1,463,900 × $9.98 per $1,000). An estimate: exemptions and abatements change the actual bill.
Elevation	About 138 ft above sea level, higher than 72% of Braintree homes.

Zoning from MassGIS tax parcels; elevation from state LiDAR at the parcel's center point; distances are straight-line. Tax uses the town's residential rate for that fiscal year.

Flood zone & environment

FEMA flood zone: X (minimal). Not in a mapped flood zone, so a lender won't require flood insurance.
Public sewer area. Inside the Braintree Water & Sewer service area, so no Title 5 septic inspection to sell.

Mapped at the parcel's center point from FEMA's flood maps, MassDEP, NHESP and MEMA (via MassGIS). Not a survey or a flood determination: confirm with FEMA's map service or a lender before you rely on it.

Schools & parks nearby

Easy walk (≤15 min) Under 2 mi Fartherbar = 0 to 3 mi

Elementary schools

Mary E. Flaherty School0.5 mi9 min walk
Hollis School0.5 mi10 min walk
Donald Ross School1.6 mi
Archie T. Morrison School1.8 mi
Liberty School2.2 mi
Highlands on Peach Elementary2.3 mi

Middle schools

East Middle School1.3 mi
South Middle School2.2 mi

High school

Braintree High School0.9 mi18 min walk

Parks & playgrounds

Flaherty Elementary School Playground0.4 mi8 min walk
Hollis Field0.5 mi9 min walk
Braintree High School Athletic Fields0.6 mi11 min walk

Straight-line distance from the parcel's center point; parks are measured to their nearest edge. Every Braintree public school is listed, nearest first; distance is not the assigned school: Braintree assigns schools by address, so check with Braintree Public Schools. School and park locations from MassGIS.

Distance to Braintree landmarks

Easy walk (≤15 min) Under 2 mi Fartherbar = 0 to 3 mi

Five Corners0.4 mi9 min walk
South Shore Plaza0.6 mi12 min walk
Braintree Town Hall0.7 mi15 min walk
Braintree T station (Red Line + commuter rail)0.8 mi16 min walk
Thayer Public Library0.8 mi17 min walk
Sunset Lake0.9 mi17 min walk
Quincy Adams T station (Red Line)1.2 mi25 min walk
Pond Meadow Park2.1 mi
Weymouth Landing / East Braintree station (commuter rail)2.4 mi
Weymouth Landing2.6 mi

Straight-line distance from the parcel's center point. Walking and driving routes are longer.

Sale history

Date	Price	Days on market	Source
Jun 2019	$714,711	—	Recorded sale (assessor), not on MLS

Recent sales nearby

175 West St — $1,350,000, Dec 2025 (on this block)
131 Monatiquot Ave — $1,100,000, Oct 2025 (on this block)
176 West St — $810,000, Sep 2025 (on this block)
38 Judson St — $725,000, Apr 2025 (0.1 mi)
47 Judson St — $810,000, Jul 2026 (0.1 mi)

Questions about 40 Walnut St

What flood zone is 40 Walnut St in?

FEMA flood zone: X (minimal). Not in a mapped flood zone, so a lender won't require flood insurance. Mapped from FEMA's flood maps at the parcel's center point; confirm with FEMA or a lender before relying on it.

Is 40 Walnut St on town sewer?

Public sewer area. Inside the Braintree Water & Sewer service area, so no Title 5 septic inspection to sell.

What schools are closest to 40 Walnut St?

The closest Braintree public elementary schools are Mary E. Flaherty School (about 0.5 miles) and Hollis School (about 0.5 miles). The closest middle school is East Middle School (about 1.3 miles). Braintree High School is about 0.9 miles away. These are straight-line distances, not school assignments: Braintree assigns schools by address, so check with Braintree Public Schools.

How far is 40 Walnut St from the T?

The closest station is Braintree T station (Red Line + commuter rail), about 0.8 miles away in a straight line, roughly a 16-minute walk.

What parks are near 40 Walnut St?

Flaherty Elementary School Playground (about 0.4 miles), Hollis Field (about 0.5 miles) and Braintree High School Athletic Fields (about 0.6 miles), measured to the nearest edge of each park.

What are the property taxes on 40 Walnut St?

About $14,610 for fiscal 2025, from the assessed value at Braintree's residential rate of $9.98 per $1,000. Exemptions and abatements change the actual bill.

What is 40 Walnut St zoned?

Residence B (B), per the state's parcel data. As a single-family home in a district that allows single-family by right, it generally qualifies for one accessory dwelling unit up to 900 sq ft under the 2025 state ADU law. Confirm with the town before planning around it.

How fast do homes sell around Walnut St?

Over the last two years, homes within half a mile of Walnut St went under agreement in a median 9 days (Braintree: 8) and sold for a median 100% of asking (Braintree: 100%), across 58 MLS sales. That puts its market speed at 37 out of 100 against every street in town, where 50 is typical.

On Walnut St

61 homes. Median sale over the last two years: $655,000 (5 sales). Every home on Walnut St →