Middlesex County and Waltham City property record for 21 Barton St, Waltham, MA 02453
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,725 sqft · built 1890 |
| Lot Size | 0.136 acres (5,911 sqft) |
| Owner | Individual Name on File |
| Last Sale | $610,000 (Mar 2017) |
| Tax Bill | $10,254 (2026) |
| Deeds & Mortgages | May 2021 Mortgage Mar 2021 Refinance + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | WALT M:061 B:011 L:0012 |
| Primary APN | WALT M:061 B:011 L:0012 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,725 sqft Living Area |
| Gross Area | 3,692 sqft |
| Basement Area | 833 sqft |
| Unfinished Basement | 833 sqft |
| Year Built | Built 1890 |
|---|---|
| Effective Year Built | Effective 1890 |
| Architectural Style | Colonial |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Hip |
| Roof Material | Asphalt |
| Lot Area | 5,911 sqft (0.136 acres) |
| Garage Type | Detached |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Account Number | 7147 |
|---|---|
| Street Address | 21 BARTON ST |
| City | WALTHAM |
| State | MA |
| Zip | 02453-6008 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 1 |
| Legal Subdivision | WALTHAM |
| Legal Block | 11 |
| Legal Lot Number | 12 |
| Jurisdiction | WALTHAM MA |
| Township / Civil Division | WALTHAM |
| Census Block Group | 4 |
| Census Block | 4003 |
| Census Tract | 368800 |
21 Barton St is owned and occupied by an individual who bought it in March 2017.
Source: Middlesex County and Waltham City records, as of October 20, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 21 BARTON ST, WALTHAM, MA 02453-6008 |
| 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.
| Date | Document |
|---|---|
| May 14, 2021 | Deed of Trust, Mortgage · Balloon Mortgage HARVARD UNIVERSITY CREDIT UNION |
| Mar 1, 2021 | Deed of Trust, Mortgage · Stand-Alone Refinance FAIRWAY INDEPENDENT MORTGAGE CORP |
| Mar 29, 2017 | Quit Claim Deed, Transfer · Conventional Mortgage LOANDEPOT.COM LLC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 29, 2017 · Amount on File |
| Deed Sale | Mar 29, 2017 · Amount on File |
| Prior Sale | Nov 3, 2014 · Amount on File |
| Deed Book / Page | 69069 / 430 |
| Transfer Doc | 069069-430 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WALTHAM MA |
| Property Address | 21 BARTON ST, WALTHAM, MA 02453-6008 |
| Transaction Type | Mortgage |
| Record Updated | Apr 2, 2026 |
| Name | Verified Name |
|---|
| Document Number | 077768-325 |
|---|---|
| Date | May 14, 2021 |
| Book Page | 77768/325 |
| Instrument | 109625 |
| Name | HARVARD UNIVERSITY CREDIT UNION |
|---|
| Type | Balloon Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 301 Months |
| Due | Jun 1, 2046 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WALTHAM MA |
| Property Address | 21 BARTON ST, WALTHAM, MA 02453-6008 |
| Transaction Type | Mortgage |
| Record Updated | Apr 2, 2026 |
| Name | Verified Name |
|---|
| Document Number | 077094-521 |
|---|---|
| Date | Mar 1, 2021 |
| Book Page | 77094/521 |
| Instrument | 45104 |
| Name | FAIRWAY INDEPENDENT MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2051 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WALTHAM MA |
| Recording Date | Mar 29, 2017 |
| Property Address | 21 BARTON ST, WALTHAM, MA 02453-6008 |
| Document Number | 69069-430 |
| Book / Page | 069069 / 000430 |
| Instrument Date | Feb 9, 2017 |
| Instrument | 46058 |
| Transaction Type | Transfer |
| Record Updated | Apr 18, 2017 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $2,782.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 21 BARTON ST WALTHAM MA 024536008, WALTHAM, MA 02453-6008 |
| Document Number | 69069-432 |
|---|---|
| Date | Mar 29, 2017 |
| Book Page | 069069/000432 |
| Instrument | 46059 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Funding / Finance Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Mar 28, 2047 |
The 2026 property tax bill for 21 Barton St was $10,254, up 1.3% 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 | $10,254.00 (+1.29%) | $993,600 (-3.62%) Land $380,600 Building $613,000 | $821,532 |
| 2025 | $10,123.00 (+1.21%) | $1,030,900 (-0.65%) Land $346,900 Building $684,000 | |
| 2024 | $10,002.00 (+10.76%) | $1,037,600 (+18.58%) Land $344,700 Building $692,900 | $841,510 |
| 2023 | $9,030.00 | $875,000 Land $330,400 Building $544,600 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21 Barton St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| 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 21 Barton 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 435 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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