Middlesex County and Waltham City property record for 11 Williams St, Waltham, MA 02453
| Property Type | Duplex |
|---|---|
| Details | 5 bd · 3 ba · 1,835 sqft · built 1998 |
| Lot Size | 0.074 acres (3,232 sqft) |
| Owner | Individual Name on File |
| Last Sale | $654,000 (Jul 2017) |
| Tax Bill | $9,057 (2026) |
| Deeds & Mortgages | Jul 2017 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 126045 |
| Primary APN | 126045 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Units | 2 Units |
| Stories | 3 Stories |
| Building Area | 1,835 sqft Living Area |
| Gross Area | 2,234 sqft |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 1998 |
| Architectural Style | Duplex Single |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 3,232 sqft (0.074 acres) |
| Garage Type | Detached |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Account Number | 126045 |
|---|---|
| Street Address | 11 WILLIAMS ST |
| City | WALTHAM |
| State | MA |
| Zip | 02453-4130 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | 1 |
| Legal Block | 33 |
| Legal Lot Number | 5 |
| Jurisdiction | WALTHAM MA |
| Township / Civil Division | WALTHAM |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 368800 |
11 Williams St, a duplex, is owned by an individual who bought it in July 2017.
Source: Middlesex County and Waltham City records, as of October 20, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 117 PROSPECT ST, WALTHAM, MA 02453-8502 |
| Owner Type | Individual |
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 | Name on Deed |
|---|---|
| Last Sale | Jul 26, 2017 · Amount on File |
| Deed Sale | Jul 26, 2017 · Amount on File |
| Prior Sale | Dec 24, 2015 |
| Deed Document Number | 2017117704 |
| Deed Book / Page | 69667 / 392 |
| Transfer Doc | 69667-392 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WALTHAM MA |
| Recording Date | Jul 26, 2017 |
| Property Address | 11 WILLIAMS ST, WALTHAM, MA 02453-4130 |
| Document Number | 69667-392 |
| Book / Page | 069667 / 000392 |
| Instrument Date | Jul 13, 2017 |
| Instrument | 117704 |
| Transaction Type | Transfer |
| Record Updated | Aug 15, 2017 |
| Amount | Amount on Record |
|---|---|
| Tax | $2,982.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 117 PROSPECT ST WALTHAM MA 024538502, WALTHAM, MA 02453-8502 |
The 2026 property tax bill for 11 Williams St was $9,057, up 0.4% from the year before.
Source: Middlesex County and Waltham City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Waltham City |
| Unified School District | Waltham School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $9,057.00 (+0.44%) | $877,600 (-4.42%) Land $317,100 Building $560,500 | $835,544 |
| 2025 | $9,017.00 (+8.85%) | $918,200 (+6.85%) Land $288,900 Building $629,300 | |
| 2024 | $8,284.00 (+10.03%) | $859,300 (+17.78%) Land $287,100 Building $572,200 | |
| 2023 | $7,529.00 | $729,600 Land $275,200 Building $454,400 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 11 Williams 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 11 Williams 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 | WALTHAM WATER DEPARTMENT serves 65,218 people · EPA ID MA3308000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Jun 2024 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 504 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 |
| Astound Broadband Cable | 1,500 / 50 |
| AT&T Fixed Wireless | 100 / 20 |
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