18 Common St, Watertown, MA 02472 Property Records

Middlesex County and Watertown City property record for 18 Common St, Watertown, MA 02472

Property Summary

Property Type	Condominium
Details	3 bd · 3.5 ba · 2,646 sqft · built 2006
Lot Size	0.468 acres (20,401 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,325,000 (Jul 2022)
Tax Bill	$15,434 (2025)
Deeds & Mortgages	Jul 2022 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`10103`

Property Details

APN / Parcel Number

Primary APN	`10103`
Alternative APN	`WATE M:1011 B:0008 L:0000A`

Interior

Bedrooms	3 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,646 sqft Living Area
Gross Area	4,131 sqft
Basement Area	951 sqft
Unfinished Basement	951 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2006
Effective Year Built	Effective 2006
Architectural Style	Other
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Hip
Roof Material	Asphalt
Lot Area	20,401 sqft

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	10103
Street Address	18 COMMON ST
City	WATERTOWN
State	MA
Zip	02472-3458
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Local Zoning Code	HIST
Legal Block	8
Legal Lot Number	A
Jurisdiction	WATERTOWN MA
Township / Civil Division	WATERTOWN TOWN
Census Block Group	1
Census Block	1013
Census Tract	370202

Owner

Source: Middlesex County and Watertown City records, as of July 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	18 COMMON ST, WATERTOWN, MA 02472-3458
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Husband and Wife

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 6, 2022 · Amount on Record
Deed Sale	Jul 6, 2022 · Amount on Record
Prior Sale	Oct 30, 2007 · Amount on Record
Deed Document Number	2022102879
Deed Book / Page	80392 / 259
Record Updated	Sep 20, 2026

July 2022: Condominium Deed, Transfer

Document Type	Condominium Deed
Jurisdiction	WATERTOWN MA
Recording Date	Jul 6, 2022
Property Address	18 COMMON ST, WATERTOWN, MA 02472-3458
Document Number	080392-259
Book / Page	80392 / 259
Instrument Date	Jul 6, 2022
Instrument	102879
Transaction Type	Transfer
Record Updated	Jul 22, 2022

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	18 COMMON ST, WATERTOWN, MA 02472-3458

Mortgage

Document Number	0000102880
Date	Jul 6, 2022
Instrument	102880

Lender

Name	WILLIAM RAVEIS MORTGAGE CO

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Rate	4.38%
Type Change Date	Aug 1, 2032
Max Rate At Change	2.75%
Index	Other

Tax Assessment & Valuation

Source: Middlesex County and Watertown City assessment roll, as of April 14, 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Middlesex County
Municipality	Watertown City
Unified School District	Watertown School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$15,434.00 (+8.63%)	$1,321,400 (+8.81%) Building $1,321,400	$1,428,325 (-0.96%)
2024	$14,208.00 (-12.59%)	$1,214,400 (+1.46%) Building $1,214,400	$1,442,195
2023	$16,254.00	$1,196,900 Building $1,196,900

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 September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	3 units insured incl. 2 condo units

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	WATERTOWN DEPARTMENT OF PUBLIC WORKS serves 35,985 people · EPA ID MA3314000
Water Source	Purchased surface water from MWRA
Last State Inspection	Oct 2025
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 557 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	1,500 / 50

May also be available: AT&T, Starry, T-Mobile, Verizon.

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