Middlesex County and Marlborough City property record for 40 Kosmas St, Marlborough, MA 01752
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,034 sqft · built 1972 |
| Lot Size | 0.627 acres (27,292 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $179,900 (Feb 1999) |
| Tax Bill | $4,936 (2025) |
| Deeds & Mortgages | Jul 2019 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 420620 |
| Primary APN | 420620 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,034 sqft Living Area |
| Gross Area | 2,216 sqft |
| Basement Area | 990 sqft |
| Unfinished Basement | 990 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1972 |
| Architectural Style | Raised Ranch |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 27,292 sqft (0.627 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Account Number | 420620 |
|---|---|
| Street Address | 40 KOSMAS ST |
| City | MARLBOROUGH |
| State | MA |
| Zip | 01752-2536 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A1 |
| Legal Block | 171 |
| Jurisdiction | MARLBOROUGH MA |
| Township / Civil Division | MARLBOROUGH |
| Census Block Group | 1 |
| Census Block | 1019 |
| Census Tract | 321600 |
40 Kosmas St is owned and occupied by two individuals who bought it in February 1999.
Source: Middlesex County and Marlborough City records, as of July 20, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 40 KOSMAS ST, MARLBOROUGH, MA 01752-2536 |
| 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.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 25, 1999 · Amount on File |
| Deed Sale | Feb 25, 1999 · Amount on File |
| Prior Sale | Mar 22, 1996 · Amount on File |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARLBOROUGH MA |
| Property Address | 40 KOSMAS ST, MARLBOROUGH, MA 01752-2536 |
| Document Number | 72981-25 |
| Instrument Date | Jul 6, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Aug 13, 2019 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Address | 40 KOSMAS ST MARLBOROUGH MA 017522536, MARLBOROUGH, MA 01752-2536 |
| Document Number | 72981-25 |
|---|---|
| Date | Jul 24, 2019 |
| Book Page | 072981/000025 |
| Instrument | 106401 |
| Name | CITIZENS BK/RI |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|
The 2025 property tax bill for 40 Kosmas St was $4,936, up 3.1% from the year before.
Source: Middlesex County and Marlborough City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Marlborough City |
| Unified School District | Marlborough School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,936.00 (+3.11%) | $500,600 (+7.08%) Land $230,500 Building $270,100 | $494,570 (-3.14%) |
| 2024 | $4,787.00 (-8.82%) | $467,500 (+2.77%) Land $209,600 Building $257,900 | $510,625 |
| 2023 | $5,250.00 | $454,900 Land $181,000 Building $273,900 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 40 Kosmas St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1978.
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 Claims | 1 (1978) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 1978 · tidal / storm surge |
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.
Wildfire risk around 40 Kosmas St is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 57% of Massachusetts |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 | MARLBOROUGH DPW WATER DIV. (MWRA) serves 41,799 people · EPA ID MA2170000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Aug 2024 |
| Lead | 1 ppb (2026) 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 283 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 / 250 |
| T-Mobile Fixed Wireless | 100 / 20 |
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