Middlesex County and Watertown City property record for 231 Common St, Watertown, MA 02472
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 3,335 sqft · built 1927 |
| Lot Size | 0.12 acres (5,211 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $13,882 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 51900-12 |
| Primary APN | 51900-12 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 10 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 3,335 sqft Living Area |
| Gross Area | 5,405 sqft |
| Basement Area | 1,375 sqft |
| Unfinished Basement | 1,375 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1927 |
|---|---|
| Effective Year Built | Effective 1927 |
| Architectural Style | Other |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 5,211 sqft (0.12 acres) |
| Garage Type | Basement |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Steam |
|---|---|
| Heating Fuel | Oil |
| Account Number | 1477 |
|---|---|
| Street Address | 231 COMMON ST |
| City | WATERTOWN |
| State | MA |
| Zip | 02472-4936 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | S-6 |
| Legal Block | 36 |
| Legal Lot Number | 3A |
| Jurisdiction | WATERTOWN MA |
| Township / Civil Division | WATERTOWN TOWN |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 370201 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 231 COMMON ST, WATERTOWN, MA 02472-4936 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
Source: Middlesex County and Watertown City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Watertown City |
| Unified School District | Watertown School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $13,882.00 (+7.62%) | $1,137,900 (+3.03%) Land $494,300 Building $643,600 | $1,185,617 |
| 2025 | $12,899.00 (+9.73%) | $1,104,400 (+9.92%) Land $494,300 Building $610,100 | |
| 2024 | $11,755.00 (-10.57%) | $1,004,700 (+3.79%) Land $493,900 Building $510,800 | |
| 2023 | $13,145.00 | $968,000 Land $471,800 Building $496,200 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 Claims | 3 (1979–1987) |
| Most Recent Claim | Jan 1987 · river or lake flooding |
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 98.7% of Massachusetts |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
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 |
| 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.
Source: FCC Broadband Data Collection, based on 707 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Astound Broadband Cable | 1,500 / 50 |
| Verizon Fiber · Fixed Wireless in parts of the area | 980 / 880 |
May also be available: T-Mobile.
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