Middlesex County and Waltham City property record for 20 Porter Rd, Waltham, MA 02452
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 1,774 sqft · built 1937 |
| Lot Size | 0.144 acres (6,264 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $176,750 (Jun 1996) |
| Tax Bill | $7,803 (2026) |
| Deeds & Mortgages | Apr 2024 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 91867 |
| Primary APN | 91867 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,774 sqft Living Area |
| Gross Area | 2,813 sqft |
| Basement Area | 919 sqft |
| Unfinished Basement | 919 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1937 |
|---|---|
| Effective Year Built | Effective 1937 |
| Architectural Style | Colonial |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 6,264 sqft (0.144 acres) |
| Parking Spaces | 1 Parking Space |
| Heating System | Steam |
|---|---|
| Heating Fuel | Gas |
| Account Number | 91867 |
|---|---|
| Street Address | 20 PORTER RD |
| City | WALTHAM |
| State | MA |
| Zip | 02452-6447 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 1 |
| Legal Subdivision | PLAN 12980A |
| Legal Block | 1 |
| Legal Lot Number | 29 |
| Jurisdiction | WALTHAM MA |
| Township / Civil Division | WALTHAM |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 369100 |
20 Porter Rd is owner-occupied and held in a trust since March 2024.
Source: Middlesex County and Waltham City records, as of October 20, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 20 PORTER RD, WALTHAM, MA 02452-6447 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Trust, Revocable 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 | Jun 28, 1996 · Amount on File |
| Deed Sale | Jun 28, 1996 · Amount on File |
| Prior Sale | Nov 28, 1995 · Amount on File |
| Last Transfer Date | Mar 25, 2024 |
| Transfer Doc | 0001954324 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WALTHAM MA |
| Recording Date | Apr 2, 2024 |
| Property Address | 20 PORTER RD, WALTHAM, MA 02452-6447 |
| Document Number | 0001954324 |
| Instrument Date | Mar 25, 2024 |
| Instrument | 1954324 |
| Transaction Type | Transfer |
| Record Updated | Apr 19, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 20 PORTER RD, WALTHAM, MA 02452-6447 |
The 2026 property tax bill for 20 Porter Rd was $7,803, up 5.9% 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 | $7,803.00 (+5.95%) | $756,100 (+0.81%) Land $449,700 Building $306,400 | $861,003 (+23.46%) |
| 2025 | $7,365.00 (+5.18%) | $750,000 (+3.26%) Land $418,500 Building $331,500 | $697,395 (-3.38%) |
| 2024 | $7,002.00 | $726,300 Land $398,900 Building $327,400 | $721,810 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 20 Porter Rd in Zone X, an area of minimal flood risk, though there have been 6 flood claims nearby since 1996.
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 |
| Flood Insurance Cost | Premium on File median of 12 policies |
| Nearby Flood Policies | 12 in force |
| Nearby Flood Claims | 6 (1996–2010) |
| Claims Outside the SFHA | 2 of 6 |
| Most Recent Claim | Mar 2010 · Severe Storms And Flooding |
| Claims by Event |
|
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 20 Porter Rd 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 356 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
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