48 Allerton St, Brookline, MA 02445 Property Records

Norfolk County and Brookline Town property record for 48 Allerton St, Brookline, MA 02445

Property Summary

Property Type	Single Family Home
Details	6 bd · 2.5 ba · 3,748 sqft · built 1900
Lot Size	0.198 acres (8,629 sqft)
Owner	2 Individual Names on Record
Last Sale	$3,175,000 (Jun 2023)
Tax Bill	$30,053 (2026)
Deeds & Mortgages	Jun 2023 Sale & Mortgage Jul 2021 Refinance
Flood Zone	Zone X (minimal risk)
APN	`11528036`

Property Details

APN / Parcel Number

Primary APN	`11528036`
Alternative APN	`BROO B:292 L:0004 S:0000`

Interior

Bedrooms	6 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	11 Rooms
Stories	3 Stories
Building Area	3,748 sqft Living Area
Gross Area	5,781 sqft
Basement Area	1,399 sqft
Unfinished Basement	1,250 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1900
Effective Year Built	Effective 1975
Architectural Style	Other
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gambrel
Roof Material	Asphalt
Lot Area	8,629 sqft (0.198 acres)

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	11528036
Street Address	48 ALLERTON ST
City	BROOKLINE
State	MA
Zip	02445-7726
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	S-7
Legal Block	292
Legal Lot Number	4
Jurisdiction	BROOKLINE MA
Township / Civil Division	BROOKLINE
Census Block Group	1
Census Block	1004
Census Tract	400900

Historic Designation

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

Historic District	Within the Pill Hill Historic District listed 1977 · 111 contributing resources · NRIS 77000187

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

Owner

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

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

Owner of Record	2 Individual Names on Record
Mailing Address	48 ALLERTON ST, BROOKLINE, MA 02445-7726
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Husband and Wife

Deeds, Mortgages & Sale History

Date	Document
Jun 21, 2023	Quit Claim Deed, Transfer · Stand-Alone First Mortgage WASHINGTON TRUST MORTGAGE CO
Jul 2, 2021	Deed of Trust, Mortgage · Stand-Alone Refinance GUARANTEED RATE INC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 21, 2023 · Amount on Record
Deed Sale	Jun 21, 2023 · Amount on Record
Prior Sale	May 18, 2007 · Amount on Record
Deed Document Number	202337986
Deed Book / Page	41259 / 152
Record Updated	Oct 29, 2026

June 2023: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BROOKLINE MA
Recording Date	Jun 21, 2023
Property Address	48 ALLERTON ST, BROOKLINE, MA 02445-7726
Document Number	041259-152
Book / Page	41259 / 152
Instrument Date	Jun 21, 2023
Instrument	37986
Transaction Type	Transfer
Record Updated	Jul 7, 2023

Transaction

Amount	Amount Recorded
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
Relationship	Tenants by the Entirety
Address	48 ALLERTON ST, BROOKLINE, MA 02445-7726

Mortgage

Document Number	0000037989
Date	Jun 21, 2023
Instrument	37989

Lender

Name	WASHINGTON TRUST MORTGAGE CO

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Rate	5.63%
Type Change Date	Jul 1, 2033
Max Rate At Change	3%
Index	1-Year CMT
Margin	3

July 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BROOKLINE MA
Property Address	48 ALLERTON ST, BROOKLINE, MA 02445-7726
Transaction Type	Mortgage
Record Updated	Jan 17, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	039591-184
Date	Jul 2, 2021
Book Page	39591/184
Instrument	87427

Lender

Name	GUARANTEED RATE INC
Type	Non-Lending Institution

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	361 Months
Due	Aug 1, 2051

Tax Assessment & Valuation

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	$30,053.00 (+4.95%)	$2,934,900 (+1.16%) Land $1,361,100 Building $1,562,800	$3,511,675 (-)
2025	$28,635.00 (+17.62%)	$2,901,200 (+16.43%) Land $1,347,600 Building $1,553,600	$3,511,675 (+6.4%)
2024	$24,346.00 (+14.7%)	$2,491,900 (+17.05%) Land $1,295,800 Building $1,196,100	$3,300,585
2023	$21,225.00	$2,128,900 Land $982,800 Building $1,146,100

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

Flood

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 500 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 in force

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

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

Wildfire Risk	Low lower than 98% of the US · lower than 96% of Massachusetts
Wildfire Likelihood	Under 0.01% annual chance
Exposure	Direct burnable vegetation

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 351 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable · Fiber in parts of the area	2,000 / 2,000
Astound Broadband Cable · Fiber in parts of the area	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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