51 Sewall Ave, #B, Brookline, MA 02446 Property Records

Norfolk County and Brookline Town property record for 51 Sewall Ave, #B, Brookline, MA 02446

Property Summary

Property Type	Condominium
Details	4 bd · 4 ba · 2,894 sqft · built 1887
Lot Size	0.15 acres (6,560 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,145,000 (Sep 2010)
Tax Bill	$20,570 (2026)
Deeds & Mortgages	Jan 2020 Sale
Flood Zone	Zone X (minimal risk)
APN	`21052113`

Property Details

APN / Parcel Number

Primary APN	`21052113`
Alternative APN	`BROO B:159 L:0002 S:0002`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Half Baths	2 Half Baths
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,894 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1887
Effective Year Built	Effective 1887
Architectural Style	Other
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	6,560 sqft

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C

Location & Zoning

Account Number	21052113
Street Address	51 SEWALL AVE, B
City	BROOKLINE
State	MA
Zip	02446-5233
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Subdivision	51 SEWALL AVE CONDO
Legal Block	159
Legal Lot Number	2
Jurisdiction	BROOKLINE MA
Township / Civil Division	BROOKLINE
Census Block Group	1
Census Block	1014
Census Tract	400201

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	51 SEWALL AVE, B, BROOKLINE, MA 02446-5233
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 8, 2010 · Amount on Record
Deed Sale	Sep 8, 2010 · Amount on Record
Deed Document Number	201088179
Deed Book / Page	28005 / 163
Last Transfer Date	Jan 25, 2020
Transfer Doc	37555-573
Record Updated	Oct 29, 2026

January 2020: Condominium Deed, Transfer

Document Type	Condominium Deed
Jurisdiction	BROOKLINE MA
Recording Date	Jan 28, 2020
Property Address	51 SEWALL AVE # B, B, BROOKLINE, MA 02446-5233
Document Number	37555-573
Book / Page	037555 / 000573
Instrument Date	Jan 25, 2020
Instrument	7856
Transaction Type	Transfer
Record Updated	Feb 11, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	51B SEWALL AVE BROOKLINE MA 024465233, BROOKLINE, MA 02446-5233

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	$20,570.00 (+8.74%)	$2,008,800 (+4.81%) Building $2,008,800	$2,033,475 (-)
2025	$18,917.00 (+3.04%)	$1,916,600 (+2%) Building $1,916,600	$2,033,475 (+3.51%)
2024	$18,358.00 (+2.82%)	$1,879,000 (+4.92%) Building $1,879,000	$1,964,600
2023	$17,855.00	$1,790,900 Building $1,790,900

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

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

Wildfire

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

Provider	Max Down / Up (Mbps)
Xfinity Cable	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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