30 Mill St, Dorchester, MA 02122 Property Records

Suffolk County and Boston City property record for 30 Mill St, Dorchester, MA 02122

Property Summary

Property Type	Duplex
Details	4 bd · 2.5 ba · 3,098 sqft · built 1882
Lot Size	0.23 acres (10,000 sqft)
Owner	Company Name on Record
Tax Bill	$9,010 (2025)
Deeds & Mortgages	Jul 2022 Transfer
Flood Zone	Zone X (minimal risk)
APN	`DORC W:16 P:00129 S:000`

Property Details

APN / Parcel Number

Primary APN	`DORC W:16 P:00129 S:000`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Units	2 Units
Stories	2 Stories
Building Area	3,098 sqft Living Area
Gross Area	5,683 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1882
Effective Year Built	Effective 2002
Architectural Style	Conventional
Exterior Material	Wood Siding
Roof Type	Gable
Roof Material	Asphalt
Lot Area	10,000 sqft (0.23 acres)
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Street Address	30 MILL ST
City	DORCHESTER
State	MA
Zip	02122-3500
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	R2
Jurisdiction	BOSTON MA
Township / Civil Division	BOSTON
Census Block Group	3
Census Block	3020
Census Tract	92101

Historic Designation

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

Historic District	Within the Harrison Square Historic District listed 2002 · 141 contributing resources · NRIS 02001190

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

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	30 MILL ST, DORCHESTER, MA 02122-3500
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Jul 21, 2022
Transfer Doc	067995-269
Record Updated	Jun 8, 2026

July 2022: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOSTON MA
Recording Date	Jul 26, 2022
Property Address	30 MILL ST, DORCHESTER, MA 02122-3500
Document Number	067995-269
Book / Page	67995 / 269
Instrument Date	Jul 21, 2022
Instrument	64843
Transaction Type	Transfer
Record Updated	Aug 12, 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	30 MILL ST, DORCHESTER, MA 02122-3500

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	$9,010.00 (+7.94%)	$778,100 (+1.61%) Land $335,600 Building $442,500
2024	$8,347.00 (+1.48%)	$765,800 (-) Land $395,900 Building $369,900
2023	$8,225.00	$765,800 Land $395,900 Building $369,900

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 · 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	1 in force
Nearby Flood Claims	1 (2000)
Most Recent Claim	Aug 2000 · 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

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 703 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 · Fiber in parts of the area	2,000 / 2,000
Astound Broadband Cable	1,500 / 50
Netafy Fixed Wireless	600 / 150
AT&T Fixed Wireless	100 / 20

May also be available: T-Mobile.

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