Middlesex County and Watertown City property record for 30 Duff St, Watertown, MA 02472
| Property Type | Condominium |
|---|---|
| Details | 2 bd · 1 ba · 874 sqft · built 1940 |
| Lot Size | 4.94 acres (215,612 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $556,000 (Oct 2025) |
| Tax Bill | $5,511 (2026) |
| Deeds & Mortgages | Oct 2021 Refinance Oct 2025 Sale & Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 73270-18 |
| Primary APN | 73270-18 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 874 sqft Living Area |
| Gross Area | 1,311 sqft |
| Basement Area | 437 sqft |
| Unfinished Basement | 437 sqft |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Architectural Style | Other |
| Exterior Material | Brick |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 215,612 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Account Number | 7474 |
|---|---|
| Street Address | 30 DUFF ST |
| City | WATERTOWN |
| State | MA |
| Zip | 02472-3016 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Local Zoning Code | R.75 |
| Legal Block | 2 |
| Legal Lot Number | 1025 |
| Jurisdiction | WATERTOWN MA |
| Township / Civil Division | WATERTOWN TOWN |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 370101 |
Source: Middlesex County and Watertown 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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 30 DUFF ST, 28, WATERTOWN, MA 02472-3016 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Oct 14, 2021 | Deed of Trust, Mortgage · Stand-Alone Refinance GUARANTEED RATE INC |
| Oct 17, 2025 | Quit Claim Deed, Transfer ROCKET MORTGAGE LLC |
| Mar 17, 2023 | Quit Claim Deed, Transfer · Stand-Alone First Mortgage PRIMELENDING |
| Nov 17, 2020 | Quit Claim Deed, Transfer · Stand-Alone First Mortgage GUARANTEED RATE INC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 17, 2025 · Amount on Record |
| Deed Sale | Oct 17, 2025 · Amount on Record |
| Prior Sale | Mar 17, 2023 · Amount on Record |
| Deed Document Number | 2025126336 |
| Deed Book / Page | 84750 / 452 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WATERTOWN MA |
| Property Address | 30 DUFF ST, WATERTOWN, MA 02472-3016 |
| Transaction Type | Mortgage |
| Record Updated | Jan 26, 2026 |
| Name | Verified Name |
|---|
| Document Number | 078913-114 |
|---|---|
| Date | Oct 14, 2021 |
| Book Page | 78913/114 |
| Instrument | 226215 |
| Name | GUARANTEED RATE INC |
|---|---|
| Type | Non-Lending Institution |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 1, 2051 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WATERTOWN MA |
| Recording Date | Oct 17, 2025 |
| Property Address | 30 DUFF ST, WATERTOWN, MA 02472-3016 |
| Document Number | 084750-452 |
| Book / Page | 84750 / 452 |
| Instrument Date | Oct 17, 2025 |
| Instrument | 126336 |
| Transaction Type | Transfer |
| Record Updated | Jan 26, 2026 |
| 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 |
|---|---|
| Relationship | Joint Tenants |
| Address | 30 DUFF ST # 28, 28, WATERTOWN, MA 02472-3016 |
| Document Number | 0000126337 |
|---|---|
| Date | Oct 17, 2025 |
| Instrument | 126337 |
| Name | ROCKET MORTGAGE LLC |
|---|
| Amount | Amount Recorded |
|---|---|
| Term | 181 Months |
| Due | Nov 1, 2040 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WATERTOWN MA |
| Recording Date | Mar 17, 2023 |
| Property Address | 30 DUFF ST, WATERTOWN, MA 02472-3016 |
| Document Number | 081337-275 |
| Book / Page | 81337 / 275 |
| Instrument Date | Mar 17, 2023 |
| Instrument | 26597 |
| Transaction Type | Transfer |
| Record Updated | Jan 26, 2026 |
| 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 | 30 DUFF ST # 28, 28, WATERTOWN, MA 02472-3016 |
| Document Number | 0000026598 |
|---|---|
| Date | Mar 17, 2023 |
| Instrument | 26598 |
| Name | PRIMELENDING |
|---|
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WATERTOWN MA |
| Recording Date | Nov 17, 2020 |
| Property Address | 30 DUFF ST, WATERTOWN, MA 02472-3016 |
| Document Number | 076187-416 |
| Book / Page | 76187 / 416 |
| Instrument Date | Nov 6, 2020 |
| Instrument | 215360 |
| Transaction Type | Transfer |
| Record Updated | May 10, 2022 |
| 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 |
|---|---|
| Relationship | Tenants by the Entirety |
| Address | 30 DUFF ST # 28, 28, WATERTOWN, MA 02472-3016 |
| Document Number | 0000215361 |
|---|---|
| Date | Nov 17, 2020 |
| Instrument | 215361 |
| Name | GUARANTEED RATE INC |
|---|---|
| Type | Non-Lending Institution |
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount Recorded |
Source: Middlesex County and Watertown City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Watertown City |
| Unified School District | Watertown School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $5,511.00 (+4.45%) | $451,700 (-) Building $451,700 | $540,170 (-) |
| 2025 | $5,276.00 (-3.17%) | $451,700 (-3.01%) Building $451,700 | $540,170 (+4.39%) |
| 2024 | $5,449.00 (-7.75%) | $465,700 (+7.06%) Building $465,700 | $517,465 |
| 2023 | $5,907.00 | $435,000 Building $435,000 |
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 | 2 in force |
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 | WATERTOWN DEPARTMENT OF PUBLIC WORKS serves 35,985 people · EPA ID MA3314000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Oct 2025 |
| Lead | 1 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 856 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 |
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