Middlesex County and Waltham City property record for 21 Summit Ave, Waltham, MA 02453
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,470 sqft · built 1987 |
| Lot Size | 0.105 acres (4,591 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $790,000 (Nov 2023) |
| Tax Bill | $6,843 (2025) |
| Deeds & Mortgages | May 2022 Line of Credit Sep 2025 Mortgage + 4 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 181715 |
| Primary APN | 181715 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,470 sqft Living Area |
| Gross Area | 2,358 sqft |
| Basement Area | 720 sqft |
| Unfinished Basement | 720 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1987 |
| Architectural Style | Colonial |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 4,591 sqft (0.105 acres) |
| Deck Area | Deck Area |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Account Number | 181715 |
|---|---|
| Street Address | 21 SUMMIT AVE |
| City | WALTHAM |
| State | MA |
| Zip | 02453-7731 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Block | 29 |
| Legal Lot Number | 8A |
| Jurisdiction | WALTHAM MA |
| Township / Civil Division | WALTHAM |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 368400 |
Source: Middlesex County and Waltham City records · APN 181715
Assessment roll updated April 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 21 SUMMIT AVE, WALTHAM, MA 02453-7731 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| May 27, 2022 | Deed of Trust, Mortgage · Line of Credit EASTERN BANK |
| Sep 24, 2025 | Deed of Trust, Mortgage · Conventional Mortgage CROSSCOUNTRY MORTGAGE INC |
| Nov 15, 2023 | Quit Claim Deed, Transfer · Stand-Alone First Mortgage CROSSCOUNTRY MORTGAGE INC |
| Jan 05, 2017 | Deed of Trust, Mortgage · Line of Credit EASTERN BANK |
| Nov 04, 2019 | Deed of Trust, Mortgage · Stand-Alone Refinance RESIDENTIAL MORTGAGE SERVICES |
| Apr 01, 2019 | Quit Claim Deed, Transfer NOT AVAILABLE |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 15, 2023 · Amount on Record |
| Deed Sale | Nov 15, 2023 · Amount on Record |
| Prior Sale | Oct 31, 2014 · Amount on Record |
| Deed Book / Page | 82214 / 472 |
| Prior Transfer Date | Mar 25, 2019 |
| Prior Transfer Doc | 72400-553 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WALTHAM MA |
| Property Address | 21 SUMMIT AVE, WALTHAM, MA 02453-7731 |
| Transaction Type | Mortgage |
| Record Updated | Apr 02, 2026 |
| Name | Verified Name |
|---|
| Document Number | 080189-424 |
|---|---|
| Date | May 27, 2022 |
| Book Page | 80189/424 |
| Instrument | 79782 |
| Name | EASTERN BANK |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WALTHAM MA |
| Property Address | 21 SUMMIT AVE, WALTHAM, MA 02453-7731 |
| Transaction Type | Mortgage |
| Record Updated | Apr 02, 2026 |
| Name | Verified Name |
|---|
| Document Number | 0084651-66 |
|---|---|
| Date | Sep 24, 2025 |
| Book Page | 84651/66 |
| Instrument | 115630 |
| Name | CROSSCOUNTRY MORTGAGE INC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 01, 2055 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WALTHAM MA |
| Recording Date | Nov 15, 2023 |
| Property Address | 21 SUMMIT AVE, WALTHAM, MA 02453-7731 |
| Document Number | 082214-472 |
| Book / Page | 82214 / 472 |
| Instrument Date | Nov 15, 2023 |
| Instrument | 130980 |
| Transaction Type | Transfer |
| Record Updated | Nov 20, 2025 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants by the Entirety |
| Address | 21 SUMMIT AVE, WALTHAM, MA 02453-7731 |
| Document Number | 0000130981 |
|---|---|
| Date | Nov 15, 2023 |
| Instrument | 130981 |
| Name | CROSSCOUNTRY MORTGAGE INC |
|---|---|
| Type | Mortgage Company |
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WALTHAM MA |
| Property Address | 21 SUMMIT AVE, WALTHAM, MA 02453-7731 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Name | Verified Name |
|---|
| Document Number | 68715-366 |
|---|---|
| Date | Jan 05, 2017 |
| Book Page | 68715/366 |
| Instrument | 2407 |
| Name | EASTERN BANK |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WALTHAM MA |
| Property Address | 21 SUMMIT AVE, WALTHAM, MA 02453-7731 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Name | Verified Name |
|---|
| Document Number | 73587-267 |
|---|---|
| Date | Nov 04, 2019 |
| Book Page | 73587/267 |
| Instrument | 171520 |
| Name | RESIDENTIAL MORTGAGE SERVICES |
|---|---|
| Type | Mortgage Company |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 01, 2049 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WALTHAM MA |
| Recording Date | Apr 01, 2019 |
| Property Address | 21 SUMMIT AVE, WALTHAM, MA 02453-7731 |
| Document Number | 72400-553 |
| Book / Page | 072400 / 000553 |
| Instrument Date | Mar 25, 2019 |
| Instrument | 39676 |
| Transaction Type | Transfer |
| Record Updated | Apr 16, 2019 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 21 SUMMIT AVE WALTHAM MA 024537731, WALTHAM, MA 02453-7731 |
Source: Middlesex County and Waltham City records · Assessment roll updated April 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Waltham City |
| Unified School District | Waltham School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $6,843.00 (+3.4%) | $696,800 (+1.5%) Land $373,600 Building $323,200 | $837,710 (+13.81%) |
| 2024 | $6,618.00 (+1.53%) | $686,500 (+8.69%) Land $366,600 Building $319,900 | $736,060 |
| 2023 | $6,518.00 | $631,600 Land $332,100 Building $299,500 |
Source: FEMA National Flood Hazard Layer as of September 10, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 8 (1979–2010) |
| Claims Outside the SFHA | 1 of 8 |
| Most Recent Claim | Mar 2010 · Severe Storms And Flooding |
| 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 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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 2,300 / 2,300 |
| Xfinity Cable | 2,000 / 2,000 |
| Radiate Holdings Cable | 1,500 / 50 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Based on FCC filings for 645 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | WALTHAM WATER DEPARTMENT serves 65,218 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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