Middlesex County and Watertown City property record for 100 Duff St, Watertown, MA 02472
| Property Type | Condominium |
|---|---|
| Details | 2 bd · 1 ba · 874 sqft · built 1940 |
| Lot Size | 6.65 acres (289,792 sqft) |
| Owner | Individual Name on File |
| Last Sale | $390,500 (Dec 2018) |
| Tax Bill | $5,756 (2026) |
| Deeds & Mortgages | Oct 2019 Mortgage Dec 2018 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 73590-23 |
| Primary APN | 73590-23 |
|---|---|
| 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 | 289,792 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Account Number | 7553 |
|---|---|
| Street Address | 100 DUFF ST |
| City | WATERTOWN |
| State | MA |
| Zip | 02472-3017 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Local Zoning Code | R.75 |
| Legal Subdivision | VILLAGE |
| Legal Block | 3 |
| Legal Lot Number | 1008 |
| Jurisdiction | WATERTOWN MA |
| Township / Civil Division | WATERTOWN TOWN |
| Census Block Group | 1 |
| Census Block | 1024 |
| Census Tract | 370101 |
100 Duff St, a condominium, is owned and occupied by an individual who bought it in December 2018.
Source: Middlesex County and Watertown City records, as of October 20, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 100 DUFF ST, WATERTOWN, MA 02472-3017 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Oct 25, 2019 | Deed of Trust, Mortgage · Conventional Mortgage MORTGAGE NTWK |
| Dec 10, 2018 | Condominium Deed, Transfer · Conventional Mortgage MORTGAGE NTWK |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 10, 2018 · Amount on File |
| Deed Sale | Dec 10, 2018 · Amount on File |
| Deed Document Number | 20187773 |
| Deed Book / Page | 71989 / 453 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WATERTOWN MA |
| Property Address | 100 DUFF ST, WATERTOWN, MA 02472-3017 |
| Document Number | 73566-252 |
| Instrument Date | Oct 25, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Nov 19, 2019 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Address | 100 DUFF ST #100 WATERTOWN MA 024723017, 100, WATERTOWN, MA 02472-3017 |
| Document Number | 73566-252 |
|---|---|
| Date | Oct 31, 2019 |
| Book Page | 073566/000252 |
| Instrument | 169367 |
| Name | MORTGAGE NTWK |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Oct 30, 2049 |
| Document Type | Condominium Deed |
|---|---|
| Jurisdiction | WATERTOWN MA |
| Recording Date | Dec 10, 2018 |
| Property Address | 100 DUFF ST, WATERTOWN, MA 02472-3017 |
| Document Number | 71989-453 |
| Book / Page | 071989 / 000453 |
| Instrument Date | Dec 10, 2018 |
| Instrument | 7773 |
| Transaction Type | Transfer |
| Record Updated | Jan 2, 2019 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,780.68 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 100 DUFF ST WATERTOWN MA 024723017, WATERTOWN, MA 02472-3017 |
| Document Number | 71989-456 |
|---|---|
| Date | Dec 10, 2018 |
| Book Page | 071989/000456 |
| Instrument | 7774 |
| Name | MORTGAGE NTWK |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Dec 9, 2048 |
The 2026 property tax bill for 100 Duff St was $5,756, up 4.4% from the year before.
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 | $5,756.00 (+4.45%) | $471,800 (-) Building $471,800 | $520,790 (-) |
| 2025 | $5,511.00 (+1.14%) | $471,800 (+1.31%) Building $471,800 | $520,790 (+2.7%) |
| 2024 | $5,449.00 (-7.75%) | $465,700 (+7.06%) Building $465,700 | $507,110 |
| 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.
FEMA maps place 100 Duff St in Zone X, an area of minimal flood risk.
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.
The area around 100 Duff 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 | 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 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures