3 Carlton St, Brookline, MA 02446 Property Records

Norfolk County and Brookline Town property record for 3 Carlton St, Brookline, MA 02446

Property Summary

Property Type	Single Family Home
Details	4 bd · 4.5 ba · 2,518 sqft · built 1968
Lot Size	0.121 acres (5,284 sqft)
Owner	Individual Name on File
Last Sale	$1,300,000 (Dec 2021)
Tax Bill	$30,346 (2026)
Deeds & Mortgages	Sep 2022 Line of Credit Dec 2021 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`4314023`

Property Details

APN / Parcel Number

Primary APN	`4314023`
Alternative APN	`BROO B:114 L:0001 S:0000`

Interior

Bedrooms	4 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,518 sqft Living Area
Gross Area	4,058 sqft
Basement Area	1,108 sqft
Unfinished Basement	222 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1968
Effective Year Built	Effective 1975
Architectural Style	Duplex Single
Exterior Material	Stone
Construction Type	Frame
Roof Type	Mansard
Lot Area	5,284 sqft (0.121 acres)
Garage Type	Attached
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	4314023
Street Address	3 CARLTON ST
City	BROOKLINE
State	MA
Zip	02446-5601
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	T-5
Legal Block	114
Legal Lot Number	1
Jurisdiction	BROOKLINE MA
Township / Civil Division	BROOKLINE
Census Block Group	2
Census Block	2004
Census Tract	400100

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic District	Within the Longwood Historic District listed 1978 · 61 contributing resources · NRIS 78000460

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

3 Carlton St is owned and occupied by an individual who bought it in December 2021.

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

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

Owner of Record	Individual Name on File
Mailing Address	3 CARLTON ST, BROOKLINE, MA 02446-5601
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Sep 15, 2022	Deed of Trust, Mortgage · Line of Credit CITIZENS BANK
Dec 10, 2021	Quit Claim Deed, Transfer · Stand-Alone First Mortgage GUILD MORTGAGE CO

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Dec 10, 2021 · Amount on File
Deed Sale	Dec 10, 2021 · Amount on File
Deed Document Number	2021154883
Deed Book / Page	40149 / 163
Prior Transfer Date	Dec 9, 2021
Prior Transfer Doc	040149-163
Record Updated	Oct 29, 2026

September 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BROOKLINE MA
Property Address	3 CARLTON ST, BROOKLINE, MA 02446-5601
Transaction Type	Mortgage
Record Updated	Sep 30, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	040813-127
Date	Sep 15, 2022
Book Page	40813/127
Instrument	81354

Lender

Name	CITIZENS BANK
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	301 Months
Due	Oct 1, 2047

Interest

Rate Type	Adjustable Rate

December 2021: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BROOKLINE MA
Recording Date	Dec 10, 2021
Property Address	3 CARLTON ST, BROOKLINE, MA 02446-5601
Document Number	040149-163
Book / Page	40149 / 163
Instrument Date	Dec 9, 2021
Instrument	154883
Transaction Type	Transfer
Record Updated	Dec 24, 2021

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3 CARLTON ST, BROOKLINE, MA 02446-5601

Mortgage

Document Number	0000154884
Date	Dec 10, 2021
Instrument	154884

Lender

Name	GUILD MORTGAGE CO
Type	Mortgage Company

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount on Record

Tax Assessment & Valuation

The 2026 property tax bill for 3 Carlton St was $30,346, up 3.1% 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	$30,346.00 (+3.09%)	$2,963,500 (-0.63%) Land $1,545,000 Building $1,417,700	$2,478,331
2025	$29,436.00 (+4.88%)	$2,982,400 (+3.82%) Land $1,529,700 Building $1,452,700
2024	$28,067.00 (+9.01%)	$2,872,800 (+11.25%) Land $1,470,800 Building $1,402,000
2023	$25,747.00	$2,582,400 Land $1,226,000 Building $1,356,400

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

Flood

FEMA maps place 3 Carlton St in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone AE, within 100 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 11 policies
Nearby Flood Policies	11 in force
Nearby Flood Claims	4 (1982–1998)
Claims Outside the SFHA	3 of 4
Most Recent Claim	Jun 1998 · Heavy Rains And Flooding

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

The area around 3 Carlton St has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire Risk	Not rated no burnable land within 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 299 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Astound Broadband Cable	1,500 / 50
Verizon Fixed Wireless · Fiber in parts of the area	1,000 / 75
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Starry.

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