Middlesex County and Waltham City property record for 11 Clark St, Waltham, MA 02453
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2.5 ba · 1,952 sqft · built 1920 |
| Lot Size | 0.102 acres (4,426 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $8,919 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 24930 |
| Primary APN | 24930 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Units | 2 Units |
| Stories | 3 Stories |
| Building Area | 1,952 sqft Living Area |
| Gross Area | 3,382 sqft |
| 1st Floor Area | 1,217 sqft |
| Basement Area | 728 sqft |
| Unfinished Basement | 728 sqft |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1920 |
| Architectural Style | Duplex Single |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 4,426 sqft (0.102 acres) |
| Garage Type | Detached |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Oil |
| Account Number | 24930 |
|---|---|
| Street Address | 11 CLARK ST |
| City | WALTHAM |
| State | MA |
| Zip | 02453-6012 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | 1 |
| Legal Block | 27 |
| Legal Lot Number | 6 |
| Jurisdiction | WALTHAM MA |
| Township / Civil Division | WALTHAM |
| Census Block Group | 4 |
| Census Block | 4007 |
| Census Tract | 368800 |
11 Clark St, a duplex, is owner-occupied and held in a trust since October 2015.
Source: Middlesex County and Waltham City records, as of October 20, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 11 CLARK ST, WALTHAM, MA 02453-6012 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | 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 | Oct 27, 2015 |
| Deed Sale | Oct 27, 2015 |
| Deed Document Number | 2015182475 |
| Deed Book / Page | 66287 / 70 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 11 Clark St was $8,919, up 3.6% 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 | $8,919.00 (+3.61%) | $864,200 (-1.41%) Land $390,400 Building $473,800 | $786,856 |
| 2025 | $8,608.00 (+8.05%) | $876,600 (+6.06%) Land $371,800 Building $504,800 | |
| 2024 | $7,967.00 (+7.66%) | $826,500 (+15.26%) Land $371,800 Building $454,700 | |
| 2023 | $7,400.00 | $717,100 Land $337,400 Building $379,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 11 Clark St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 11 Clark 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 591 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 · Fiber in parts of the area | 2,000 / 2,000 |
| Astound Broadband Cable | 1,500 / 50 |
May also be available: AT&T, T-Mobile.
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