Middlesex County and Waltham City property record for 21 Walton St, Waltham, MA 02451
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,292 sqft · built 1910 |
| Lot Size | 0.106 acres (4,600 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $530,000 (Oct 2021) |
| Tax Bill | $6,051 (2026) |
| Deeds & Mortgages | Dec 2022 Mortgage Oct 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 118946 |
| Primary APN | 118946 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,292 sqft Living Area |
| Gross Area | 2,368 sqft |
| 1st Floor Area | 1,364 sqft |
| Basement Area | 738 sqft |
| Unfinished Basement | 738 sqft |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1910 |
| Architectural Style | Cape Cod |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 4,600 sqft (0.106 acres) |
| Garage Type | Detached |
| Deck Area | Deck Area |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Oil |
| Account Number | 118946 |
|---|---|
| Street Address | 21 WALTON ST |
| City | WALTHAM |
| State | MA |
| Zip | 02451-2115 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 1 |
| Legal Block | 2 |
| Legal Lot Number | 11 |
| Jurisdiction | WALTHAM MA |
| Township / Civil Division | WALTHAM |
| Census Block Group | 2 |
| Census Block | 2022 |
| Census Tract | 368102 |
Source: Middlesex County and Waltham 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 | Individual Name on Record |
|---|---|
| Mailing Address | 21 WALTON ST, WALTHAM, MA 02451-2115 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Dec 20, 2022 | Deed of Trust, Mortgage · Second Mortgage (Down Payment) PENNYMAC LOAN SERVICES LLC |
| Oct 29, 2021 | Quit Claim Deed, Transfer · Stand-Alone First Mortgage DRAPER AND KRAMER MORTGAGE CORP. |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 29, 2021 · Amount on Record |
| Deed Sale | Oct 29, 2021 · Amount on Record |
| Prior Sale | Oct 30, 2015 · Amount on Record |
| Deed Book / Page | 79026 / 373 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WALTHAM MA |
| Property Address | 21 WALTON ST, WALTHAM, MA 02451-2115 |
| Transaction Type | Mortgage |
| Record Updated | Apr 2, 2026 |
| Name | Verified Name |
|---|
| Document Number | 081082-450 |
|---|---|
| Date | Dec 20, 2022 |
| Book Page | 81082/450 |
| Instrument | 184579 |
| Name | PENNYMAC LOAN SERVICES LLC |
|---|---|
| Type | Mortgage Company |
| Type | Second Mortgage (Down Payment) |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jan 1, 2053 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WALTHAM MA |
| Recording Date | Oct 29, 2021 |
| Property Address | 21 WALTON ST, WALTHAM, MA 02451-2115 |
| Document Number | 79026-373 |
| Book / Page | 79026 / 373 |
| Instrument Date | Oct 29, 2021 |
| Instrument | 237362 |
| Transaction Type | Transfer |
| Record Updated | Nov 19, 2021 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 21 WALTON ST, WALTHAM, MA 02451-2115 |
| Document Number | 237363 |
|---|---|
| Date | Oct 29, 2021 |
| Instrument | 237363 |
| Name | DRAPER AND KRAMER MORTGAGE CORP. |
|---|
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $6,051.00 (+9.8%) | $586,300 (+4.47%) Land $350,200 Building $236,100 | $652,400 (+1.17%) |
| 2025 | $5,511.00 (+5.27%) | $561,200 (+3.35%) Land $334,200 Building $227,000 | $644,860 (+3.32%) |
| 2024 | $5,235.00 (+0.29%) | $543,000 (+7.35%) Land $318,300 Building $224,700 | $624,150 |
| 2023 | $5,220.00 | $505,800 Land $290,600 Building $215,200 |
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 Policies | 8 in force |
| Nearby Flood Claims | 1 (1978) |
| Most Recent Claim | Feb 1978 · tidal / storm surge |
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 98% of the US · lower than 96% 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 | 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 549 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 |
| AT&T Fixed Wireless | 100 / 20 |
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