13 Patten St, Watertown, MA 02472 Property Records

Middlesex County and Watertown City property record for 13 Patten St, Watertown, MA 02472

Property Summary

Property Type	Duplex
Details	4 bd · 2 ba · 2,610 sqft · built 1884
Lot Size	0.141 acres (6,146 sqft)
Owner	Individual Name on Record
Tax Bill	$12,504 (2026)
Deeds & Mortgages	Nov 2023 Refinance Jan 2022 Refinance + 2 more
Flood Zone	Zone X (minimal risk)
APN	`46660-01`

Property Details

APN / Parcel Number

Primary APN	`46660-01`
Alternative APNs	`WATE M:1005 B:0009 L:0000` `25`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	10 Rooms
Units	2 Units
Stories	2 Stories
Building Area	2,610 sqft Living Area
Gross Area	4,868 sqft
Basement Area	1,546 sqft
Unfinished Basement	1,546 sqft

Exterior

Year Built	Built 1884
Effective Year Built	Effective 1884
Architectural Style	Other
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	6,146 sqft (0.141 acres)
Garage Type	Basement
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Heating Fuel	Gas

Location & Zoning

Account Number	25
Street Address	13 PATTEN ST
City	WATERTOWN
State	MA
Zip	02472-3933
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	R.75
Legal Subdivision	PLAN 37480
Legal Block	9
Jurisdiction	WATERTOWN MA
Township / Civil Division	WATERTOWN TOWN
Census Block Group	2
Census Block	2007
Census Tract	370401

Owner

Source: Middlesex County and Watertown City 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	Individual Name on Record
Mailing Address	PO BOX 404, WATERTOWN, MA 02471-0404
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Nov 8, 2023	Deed of Trust, Mortgage · Stand-Alone Refinance LOYAL CAPITAL INVESTMENT GROUP LLC
Jan 3, 2022	Deed of Trust, Mortgage · Stand-Alone Refinance LOYAL CAPITAL INVESTMENT GROUP LLC
May 20, 2021	Deed of Trust, Mortgage · Stand-Alone Refinance LEADER BANK NA
Feb 20, 2020	Deed of Trust, Mortgage LOYAL CAP INVEST

Assessor's Deed Record

Deed Names	Name on Deed
Record Updated	Oct 29, 2026

November 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WATERTOWN MA
Property Address	13 PATTEN ST, WATERTOWN, MA 02472-3933
Transaction Type	Mortgage
Record Updated	Nov 23, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0001947110
Date	Nov 8, 2023
Instrument	1947110

Lender

Name	LOYAL CAPITAL INVESTMENT GROUP LLC

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded

January 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WATERTOWN MA
Property Address	13 PATTEN ST, WATERTOWN, MA 02472-3933
Transaction Type	Mortgage
Record Updated	Jan 21, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0001903493
Date	Jan 3, 2022
Instrument	1903493

Lender

Name	LOYAL CAPITAL INVESTMENT GROUP LLC

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WATERTOWN MA
Property Address	13 PATTEN ST, WATERTOWN, MA 02472-3933
Transaction Type	Mortgage
Record Updated	Jun 4, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	1880493
Date	May 20, 2021
Instrument	1880493

Lender

Name	LEADER BANK NA
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded

February 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WATERTOWN MA
Property Address	13 PATTEN ST, WATERTOWN, MA 02472-3933
Document Number	0001836710
Instrument Date	Feb 20, 2020
Transaction Type	Mortgage
Record Updated	Mar 11, 2020
Title Company	NOT AVAILABLE

Transaction

Additional	Multiple Parcels

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	PO BOX 404 WATERTOWN MA 024710404, WATERTOWN, MA 02471-0404

Mortgage

Document Number	0001836710
Date	Feb 20, 2020
Instrument	1836710

Lender

Name	LOYAL CAP INVEST

Agreement

Amount	Amount Recorded

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
2026	$12,504.00 (+7.54%)	$1,024,900 (+2.95%) Land $479,700 Building $545,200	$947,729
2025	$11,627.00 (+9.63%)	$995,500 (+9.82%) Land $479,700 Building $515,800
2024	$10,606.00 (-11.9%)	$906,500 (+2.26%) Land $466,000 Building $440,500
2023	$12,039.00	$886,500 Land $450,900 Building $435,600

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	2 in force

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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