312 Walnut St, Brookline, MA 02445 Property Records

Norfolk County and Brookline Town property record for 312 Walnut St, Brookline, MA 02445 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 2,174 sqft · built 1920
Lot Size	0.113 acres (4,944 sqft)
Owner	Individual Name on File
Tax Bill	$17,296 (2025)
Deeds & Mortgages	Jun 2021 Refinance
Flood Zone	Zone X (minimal risk)
APN	`12046002`

Property Details

APN / Parcel Number

Primary APN	`12046002`
Alternative APN	`BROO B:317 L:0015 S:0000`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,174 sqft Living Area
Gross Area	3,998 sqft
Basement Area	976 sqft
Unfinished Basement	976 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1920
Effective Year Built	Effective 1977
Architectural Style	Other
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	4,944 sqft (0.113 acres)

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Account Number	12046002
Street Address	312 WALNUT ST
City	BROOKLINE
State	MA
Zip	02445-7522
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Subdivision	BROOKLINE
Legal Block	317
Legal Lot Number	15
Jurisdiction	BROOKLINE MA
Township / Civil Division	BROOKLINE
Census Block Group	1
Census Block	1007
Census Tract	401000

Owner

Source: Norfolk County and Brookline Town records · APN 12046002

Assessment roll updated April 14, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	312 WALNUT ST, BROOKLINE, MA 02445-7522
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jan 28, 2013
Deed Sale	Jan 28, 2013
Prior Sale	Oct 12, 2000 · Amount on Record
Deed Document Number	20131
Deed Book / Page	30964 / 263
Transfer Doc	030964-265
Record Updated	Sep 20, 2026

June 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BROOKLINE MA
Property Address	312 WALNUT ST, BROOKLINE, MA 02445-7522
Transaction Type	Mortgage
Record Updated	Jan 17, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	039496-458
Date	Jun 10, 2021
Book Page	39496/458
Instrument	75600

Lender

Name	GUARANTY HOME MORTGAGE

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	181 Months
Due	Jul 01, 2036

Tax Assessment & Valuation

Source: Norfolk County and Brookline Town records · Assessment roll updated April 14, 2026 · Last verified July 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

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$17,296.00 (+5.06%)	$1,752,400 (+3.99%) Land $980,600 Building $771,800	$2,949,465 (+53.34%)
2024	$16,463.00 (+7.09%)	$1,685,100 (+9.29%) Land $942,900 Building $742,200	$1,923,465
2023	$15,373.00	$1,541,900 Land $814,800 Building $727,100

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Norfolk County (25021C), updated May 26, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Flood Hazard	Minimal
500-Year Floodplain	No
Special Flood Hazard Area	No

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.