Middlesex County and Waltham City property record for 23 Riverview Ave, Waltham, MA 02453
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2.5 ba · 3,340 sqft · built 1930 |
| Lot Size | 0.235 acres (10,258 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $23,500 (Jun 1968) |
| Tax Bill | $11,028 (2026) |
| Deeds & Mortgages | Sep 2021 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 97479 |
| Primary APN | 97479 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 3,340 sqft Living Area |
| Gross Area | 5,724 sqft |
| Basement Area | 1,336 sqft |
| Unfinished Basement | 1,336 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1930 |
| Architectural Style | Duplex Single |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Hip |
| Roof Material | Asphalt |
| Lot Area | 10,258 sqft (0.235 acres) |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Account Number | 97479 |
|---|---|
| Street Address | 23 RIVERVIEW AVE |
| City | WALTHAM |
| State | MA |
| Zip | 02453-3817 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | 1 |
| Legal Block | 10 |
| Legal Lot Number | 19 |
| Jurisdiction | WALTHAM MA |
| Township / Civil Division | WALTHAM |
| Census Block Group | 4 |
| Census Block | 4006 |
| Census Tract | 368600 |
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 | 23 RIVERVIEW AVE, WALTHAM, MA 02453-3817 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 26, 1968 · Amount on Record |
| Deed Sale | Jun 26, 1968 · Amount on Record |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WALTHAM MA |
| Property Address | 23 RIVERVIEW AVE, WALTHAM, MA 02453-3817 |
| Transaction Type | Mortgage |
| Record Updated | Oct 8, 2021 |
| Name | Verified Name |
|---|
| Document Number | 78759-388 |
|---|---|
| Date | Sep 23, 2021 |
| Book Page | 78759/388 |
| Instrument | 210852 |
| Name | SANTANDER BANK NA |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 1, 2051 |
| Rate Type | Adjustable Rate |
|---|
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 | $11,028.00 (+13.53%) | $1,068,600 (+8.03%) Land $447,700 Building $620,900 | $1,014,201 |
| 2025 | $9,714.00 (+8.31%) | $989,200 (+6.32%) Land $406,600 Building $582,600 | |
| 2024 | $8,969.00 (-0.79%) | $930,400 (+6.21%) Land $406,600 Building $523,800 | |
| 2023 | $9,040.00 | $876,000 Land $370,400 Building $505,600 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 5 (1979–1987) |
| Claims Outside the SFHA | 3 of 5 |
| Most Recent Claim | Apr 1987 · Severe Storms & Flooding |
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 | 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 125 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 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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