9 Castlegate Rd, Dorchester, MA 02121 Property Records

Suffolk County and Boston City property record for 9 Castlegate Rd, Dorchester, MA 02121

Property Summary

Property Type	Triplex
Details	9 bd · 3 ba · 4,125 sqft · built 1890
Lot Size	0.057 acres (2,488 sqft)
Owner	Company Name on Record
Tax Bill	$8,751 (2025)
Deeds & Mortgages	May 2022 Transfer
Flood Zone	Zone X (minimal risk)
APN	`DORC W:14 P:00789 S:000`

Property Details

APN / Parcel Number

Primary APN	`DORC W:14 P:00789 S:000`

Interior

Bedrooms	9 Beds
Full Baths	3 Baths
Total Rooms	18 Rooms
Units	3 Units
Stories	3 Stories
Building Area	4,125 sqft Living Area
Gross Area	5,941 sqft

Exterior

Year Built	Built 1890
Effective Year Built	Effective 1890
Architectural Style	Other
Exterior Material	Brick
Roof Type	Flat
Lot Area	2,488 sqft (0.057 acres)

Utilities, Heating & Cooling

Heating System	Hot Water

Location & Zoning

Street Address	9 CASTLEGATE RD
City	DORCHESTER
State	MA
Zip	02121-3375
Property Category	Residential
Property Type	Residential > Multi-Unit > Triplex
Local Zoning Code	R3
Jurisdiction	BOSTON MA
Township / Civil Division	BOSTON
Census Block Group	1
Census Block	1003
Census Tract	90100

Owner

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

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

Owner of Record	Company Name on Record
Mailing Address	1 CANAAN ST, MATTAPAN, MA 02126-3210
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Feb 4, 2022
Transfer Doc	067592-235
Record Updated	Jun 8, 2026

May 2022: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOSTON MA
Recording Date	May 4, 2022
Property Address	9 CASTLEGATE RD, DORCHESTER, MA 02121-3375
Document Number	067592-235
Book / Page	67592 / 235
Instrument Date	Feb 4, 2022
Instrument	38485
Transaction Type	Transfer
Record Updated	May 20, 2022

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1 CANAAN ST, MATTAPAN, MA 02126-3210

Tax Assessment & Valuation

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
2025	$8,751.00 (+3.27%)	$755,700 (-2.79%) Land $193,600 Building $562,100
2024	$8,474.00 (+8.57%)	$777,400 (+6.98%) Land $265,900 Building $511,500
2023	$7,805.00	$726,700 Land $248,600 Building $478,100

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective January 21, 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	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 261 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300
Xfinity Cable	2,000 / 2,000
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Netafy.

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