409 Commonwealth Ave, Unit B, Boston, MA 02215 Property Records

Suffolk County and Boston City property record for 409 Commonwealth Ave, Unit B, Boston, MA 02215

Property Summary

Property Type	Condominium
Details	4 bd · 4.5 ba · 4,600 sqft · built 1899
Lot Size	0.106 acres (4,600 sqft)
Owner	Individual Name on File
Last Sale	$6,150,000 (Jun 2026)
Tax Bill	$81,391 (2025)
Deeds & Mortgages	Jun 2026 Sale Jan 2018 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`CBOS W:05 P:03834 S:014`

Property Details

APN / Parcel Number

Primary APN	`CBOS W:05 P:03834 S:014`

Interior

Bedrooms	4 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	13 Rooms
Units	12 Units
Stories	2 Stories
Building Area	4,600 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1899
Effective Year Built	Effective 2012
Architectural Style	Other
Exterior Material	Brick
Roof Type	Flat
Roof Material	Other
Lot Area	4,600 sqft (0.106 acres)
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C

Location & Zoning

Street Address	409 COMMONWEALTH AVE, B
City	BOSTON
State	MA
Zip	02215-2356
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Local Zoning Code	CD
Jurisdiction	BOSTON MA
Township / Civil Division	BOSTON
Census Block Group	1
Census Block	1001
Census Tract	10104

Historic Designation

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

Historic District	Within the Back Bay Historic District listed 1973 · 1,445 contributing resources · NRIS 73001948

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

Owner

409 Commonwealth Ave, Unit B is owned and occupied by an individual who bought it in June 2026.

Source: Suffolk County and Boston City records, as of July 20, 2026

Owner of Record	Individual Name on File
Mailing Address	409 COMMONWEALTH AVE, B, BOSTON, MA 02215-2356
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Individual(s)

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
Jun 16, 2026	Quit Claim Deed, Transfer
Jan 29, 2018	Quit Claim Deed, Transfer CITIZENS BK/RI

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 16, 2026 · Amount on File
Deed Sale	Jun 16, 2026 · Amount on File
Prior Sale	Jan 29, 2018 · Amount on File
Deed Document Number	202637171
Deed Book / Page	72889 / 343
Prior Transfer Date	Jun 9, 2026
Prior Transfer Doc	0000037171
Record Updated	Oct 29, 2026

June 2026: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOSTON MA
Recording Date	Jun 16, 2026
Property Address	409 COMMONWEALTH AVE, BOSTON, MA 02215-2355
Document Number	0000037171
Book / Page	72889 / 343
Instrument Date	Jun 9, 2026
Instrument	202637171
Transaction Type	Transfer
Record Updated	Aug 30, 2026

Transaction

Amount	Amount on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	409 COMMONWEALTH AVE, BOSTON, MA 02215-2355

January 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOSTON MA
Recording Date	Jan 29, 2018
Property Address	409 COMMONWEALTH AVE UNIT B, B, BOSTON, MA 02215-2356
Document Number	59122-40
Book / Page	059122 / 000040
Instrument Date	Jan 25, 2018
Instrument	7636
Transaction Type	Transfer
Record Updated	Feb 20, 2018

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$3,005.04
Amount Accuracy	Confirmed
Additional	Quitclaim Intrafamily Transfer Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	67 SAWYER AVE #3 BOSTON MA 02125, 3, BOSTON, MA 02125

Mortgage

Document Number	59122-43
Date	Jan 29, 2018
Book Page	059122/000043
Instrument	7637

Lender

Name	CITIZENS BK/RI
Type	Bank

Agreement

Amount	Amount on Record
Term	360 Months
Due	Jan 28, 2048

Tax Assessment & Valuation

The 2025 property tax bill for 409 Commonwealth Ave, Unit B was $81,391, up 6% from the year before.

Source: Suffolk County and Boston City assessment roll, as of April 14, 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Suffolk County
Municipality	Boston City
Unified School District	Boston School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$81,391.00 (+6.01%)	$7,028,600 (-0.21%) Building $7,028,600	$5,856,370 (-0.16%)
2024	$76,776.00 (+6.57%)	$7,043,700 (+5%) Building $7,043,700	$5,865,775
2023	$72,046.00	$6,708,200 Building $6,708,200

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

Flood

FEMA maps place 409 Commonwealth Ave, Unit B in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

Source: FEMA National Flood Hazard Layer, effective January 21, 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
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	5 in force
Nearby Flood Claims	1 (2001)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jun 2001 · 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

The area around 409 Commonwealth Ave, Unit B 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	BOSTON WATER AND SEWER COMMISSION (MWRA) serves 675,647 people · EPA ID MA3035000
Water Source	Purchased surface water from MWRA
Last State Inspection	Mar 2026
Lead	6 ppb (2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	Lead service line replacement currently in violation since Nov 2020
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 227 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Verizon Fixed Wireless · Fiber in parts of the area	1,000 / 75
Starry Fixed Wireless	800 / 250
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, AT&T.

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