Middlesex County and Waltham City property record for 21 Grove Rd, Waltham, MA 02451
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 1,824 sqft · built 1955 |
| Lot Size | 0.142 acres (6,168 sqft) |
| Owner | Individual Name on File |
| Last Sale | $370,000 (Jan 2005) |
| Tax Bill | $8,929 (2026) |
| Deeds & Mortgages | Jun 2023 Mortgage |
| Flood Zone | Zone AE (high risk) |
| APN | 47327 |
| Primary APN | 47327 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,824 sqft Living Area |
| Gross Area | 2,850 sqft |
| Basement Area | 912 sqft |
| Unfinished Basement | 912 sqft |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 2021 |
| Architectural Style | Bungalow |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Hip |
| Roof Material | Asphalt |
| Lot Area | 6,168 sqft (0.142 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Account Number | 47327 |
|---|---|
| Street Address | 21 GROVE RD |
| City | WALTHAM |
| State | MA |
| Zip | 02451-3219 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 1 |
| Legal Block | 10 |
| Legal Lot Number | 6 |
| Jurisdiction | WALTHAM MA |
| Township / Civil Division | WALTHAM |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 368101 |
21 Grove Rd is owned and occupied by an individual who bought it in January 2005.
Source: Middlesex County and Waltham City records, as of October 20, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 21 GROVE RD, WALTHAM, MA 02451-3219 |
| Occupancy | Owner Occupied |
| 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 | Jan 21, 2005 · Amount on File |
| Deed Sale | Jan 21, 2005 · Amount on File |
| Prior Sale | Jun 4, 2004 · Amount on File |
| Deed Document Number | 200514753 |
| Deed Book / Page | 44520 / 498 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WALTHAM MA |
| Property Address | 21 GROVE RD, WALTHAM, MA 02451-3219 |
| Transaction Type | Mortgage |
| Record Updated | Jul 19, 2023 |
| Name | Verified Name |
|---|
| Document Number | 081702-282 |
|---|---|
| Date | Jun 27, 2023 |
| Book Page | 81702/282 |
| Instrument | 69379 |
| Name | BRISTOL COUNTY SAVINGS BANK |
|---|---|
| Type | Bank |
| Type | Second Mortgage (Down Payment) |
|---|---|
| Amount | Amount on Record |
| Term | 121 Months |
| Due | Jul 1, 2033 |
The 2026 property tax bill for 21 Grove Rd was $8,929, up 9.9% 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 | $8,929.00 (+9.87%) | $865,200 (+4.54%) Land $366,000 Building $499,200 | $758,225 (+4.55%) |
| 2025 | $8,127.00 (+5%) | $827,600 (+3.08%) Land $349,400 Building $478,200 | $725,230 (+11.71%) |
| 2024 | $7,740.00 (+43.04%) | $802,900 (+53.14%) Land $332,800 Building $470,100 | $649,230 |
| 2023 | $5,411.00 | $524,300 Land $303,800 Building $220,500 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21 Grove Rd in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 202.9 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 29 policies |
| Nearby Flood Policies | 29 in force |
| Nearby Flood Claims | 21 (1996–2018) |
| Claims Outside the SFHA | 3 of 21 |
| Most Recent Claim | Jan 2018 · rainfall accumulation |
| 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.
Wildfire risk around 21 Grove Rd is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 98.7% 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 412 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 |
May also be available: T-Mobile.
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