431 Warren St, Brookline, MA 02445 Property Records

Norfolk County and Brookline Town property record for 431 Warren St, Brookline, MA 02445

Property Summary

Property Type	Single Family Home
Details	6 bd · 7 ba · 6,694 sqft · built 2015
Lot Size	0.919 acres (40,027 sqft)
Owner	2 Individual Names on File
Last Sale	$2,400,000 (Jun 2015)
Tax Bill	$83,364 (2026)
Deeds & Mortgages	Jan 2018 Mortgage Feb 2020 Refinance + 1 more
Flood Zone	Zone X (minimal risk)
APN	`12548025`

Property Details

APN / Parcel Number

Primary APN	`12548025`
Alternative APN	`BROO B:337 L:0023 S:0000`

Interior

Bedrooms	6 Beds
Full Baths	7 Baths
Half Baths	2 Half Baths
Total Rooms	14 Rooms
Stories	2 Stories
Building Area	6,694 sqft Living Area
Gross Area	10,293 sqft
Basement Area	3,463 sqft
Unfinished Basement	3,119 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2015
Effective Year Built	Effective 2015
Architectural Style	Colonial
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	40,027 sqft (0.919 acres)
Garage Type	Basement
Parking Spaces	3 Parking Spaces

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C
Heating Fuel	Gas

Location & Zoning

Account Number	12548025
Street Address	431 WARREN ST
City	BROOKLINE
State	MA
Zip	02445-5920
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	S40
Legal Block	337
Legal Lot Number	23
Jurisdiction	BROOKLINE MA
Township / Civil Division	BROOKLINE
Census Block Group	1
Census Block	1014
Census Tract	401100

Owner

431 Warren St is owned and occupied by two individuals who bought it in June 2015.

Source: Norfolk County and Brookline Town records, as of October 20, 2026

Owner of Record	2 Individual Names on File
Mailing Address	431 WARREN ST, BROOKLINE, MA 02445-5920
Occupancy	Owner Occupied
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Jan 5, 2018	Deed of Trust, Mortgage EASTERN BANK
Feb 25, 2020	Deed of Trust, Mortgage · Stand-Alone Refinance ENTERPRISE BANK & TRUST CO
Dec 29, 2020	Deed of Trust, Mortgage · Stand-Alone Refinance EASTERN BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 4, 2015 · Amount on File
Deed Sale	Jun 4, 2015 · Amount on File
Prior Sale	May 8, 2006 · Amount on File
Deed Book / Page	33188 / 3
Transfer Doc	00033188-3
Record Updated	Oct 29, 2026

January 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BROOKLINE MA
Property Address	431 WARREN ST, BROOKLINE, MA 02445-5920
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	35721-379
Date	Jan 5, 2018
Book Page	35721/379
Instrument	1063

Lender

Name	EASTERN BANK
Type	Bank

Agreement

Amount	Amount on Record
Term	360 Months
Due	Jan 1, 2048

February 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BROOKLINE MA
Property Address	431 WARREN ST, BROOKLINE, MA 02445-5920
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	37623-361
Date	Feb 25, 2020
Book Page	37623/361
Instrument	16815

Lender

Name	ENTERPRISE BANK & TRUST CO
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record

December 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BROOKLINE MA
Property Address	431 WARREN ST, BROOKLINE, MA 02445-5920
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	38807-225
Date	Dec 29, 2020
Book Page	38807/225
Instrument	148704

Lender

Name	EASTERN BANK
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record
Term	361 Months
Due	Jan 1, 2051

Tax Assessment & Valuation

The 2026 property tax bill for 431 Warren St was $83,364, up 5.3% from the year before.

Source: Norfolk County and Brookline Town assessment roll, as of April 14, 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Norfolk County
County Subdivision	Brookline Town
Unified School District	Brookline School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$83,364.00 (+5.26%)	$8,141,000 (+1.45%) Land $3,002,000 Building $5,095,300	$5,357,896
2025	$79,201.00 (+3.91%)	$8,024,400 (+2.86%) Land $2,972,200 Building $5,052,200
2024	$76,218.00 (+5.74%)	$7,801,200 (+7.91%) Land $2,857,900 Building $4,943,300	$6,799,625
2023	$72,079.00	$7,229,600 Land $2,381,900 Building $4,847,700

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 431 Warren St in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2014.

Source: FEMA National Flood Hazard Layer, effective May 26, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	9 in force
Nearby Flood Claims	2 (2014)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Dec 2014 · rainfall accumulation

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 431 Warren St is low, with less than a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 97% of the US · lower than 94% of Massachusetts
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	BROOKLINE WATER AND SEWER DIVISION serves 63,191 people · EPA ID MA3046000
Water Source	Purchased surface water from MWRA
Last State Inspection	Apr 2026
Lead	1 ppb (2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 99 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50

May also be available: AT&T, T-Mobile, Verizon.

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