Middlesex County and Watertown City property record for 300 Common St, Watertown, MA 02472
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,790 sqft · built 1928 |
| Lot Size | 0.146 acres (6,352 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $480,000 (Jul 2001) |
| Tax Bill | $11,689 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 17770-32 |
| Primary APN | 17770-32 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,790 sqft Living Area |
| Gross Area | 3,628 sqft |
| Basement Area | 1,015 sqft |
| Unfinished Basement | 1,015 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1928 |
|---|---|
| Effective Year Built | Effective 1928 |
| Architectural Style | Colonial |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 6,352 sqft (0.146 acres) |
| Garage Type | Basement |
| Parking Spaces | 1 Parking Space |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Account Number | 6464 |
|---|---|
| Street Address | 300 COMMON ST |
| City | WATERTOWN |
| State | MA |
| Zip | 02472-4940 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | S-6 |
| Legal Subdivision | LOCKE ESTATE |
| Legal Block | 16 |
| Legal Lot Number | 5 |
| Jurisdiction | WATERTOWN MA |
| Township / Civil Division | WATERTOWN TOWN |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 370202 |
300 Common St is owner-occupied and held in a trust since December 2024.
Source: Middlesex County and Watertown City records, as of October 20, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 300 COMMON ST, WATERTOWN, MA 02472-4940 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 2, 2001 · Amount on File |
| Deed Sale | Jul 2, 2001 · Amount on File |
| Last Transfer Date | Dec 31, 2024 |
| Transfer Doc | 083642-114 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 300 Common St was $11,689, up 6.5% from the year before.
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 | $11,689.00 (+6.46%) | $958,100 (+1.91%) Land $506,000 Building $452,100 | $1,128,600 (-) |
| 2025 | $10,980.00 (+7.68%) | $940,100 (+7.87%) Land $506,000 Building $434,100 | $1,128,600 (+4.08%) |
| 2024 | $10,197.00 (-6.99%) | $871,500 (+7.95%) Land $491,000 Building $380,500 | $1,084,330 |
| 2023 | $10,963.00 | $807,300 Land $469,000 Building $338,300 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 300 Common St in Zone X, an area of minimal flood risk.
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 | 1 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.
The area around 300 Common St has no burnable land within ember reach, so its wildfire risk is not rated.
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.
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 620 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures