Middlesex County and Cambridge City property record for 18 Jay St, Cambridge, MA 02139
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1.5 ba · 1,024 sqft · built 1985 |
| Lot Size | 0.022 acres (938 sqft) |
| Owner | Individual Name on File |
| Last Sale | $916,000 (May 2018) |
| Tax Bill | $5,942 (2025) |
| Deeds & Mortgages | May 2018 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 125-120 |
| Primary APN | 125-120 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 4 Rooms |
| Stories | 2 Stories |
| Building Area | 1,024 sqft Living Area |
| Gross Area | 1,592 sqft |
| 1st Floor Area | 512 sqft |
| Basement Area | 224 sqft |
| Unfinished Basement | 224 sqft |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Other |
| Exterior Material | Wood Siding |
| Construction Type | Concrete |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 938 sqft (0.022 acres) |
| Garage Type | Covered |
| Parking Spaces | 1 Parking Space |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Gas |
| Street Address | 18 JAY ST |
|---|---|
| City | CAMBRIDGE |
| State | MA |
| Zip | 02139-3705 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | C-1 |
| Legal Lot Number | 120 |
| Jurisdiction | CAMBRIDGE MA |
| Township / Civil Division | CAMBRIDGE |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 359400 |
18 Jay St is owned and occupied by an individual who bought it in May 2018.
Source: Middlesex County and Cambridge City records, as of July 20, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 18 JAY ST, CAMBRIDGE, MA 02139-3705 |
| 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 | Name on Deed |
|---|---|
| Last Sale | May 18, 2018 · Amount on File |
| Deed Sale | May 18, 2018 · Amount on File |
| Prior Sale | Feb 27, 2001 · Amount on File |
| Deed Document Number | 201869902 |
| Deed Book / Page | 71026 / 291 |
| Transfer Doc | 71026-291 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CAMBRIDGE MA |
| Recording Date | May 18, 2018 |
| Property Address | 18 JAY ST, CAMBRIDGE, MA 02139-3705 |
| Document Number | 71026-291 |
| Book / Page | 071026 / 000291 |
| Instrument Date | May 14, 2018 |
| Instrument | 69902 |
| Transaction Type | Transfer |
| Record Updated | Jan 12, 2019 |
| Amount | Amount on Record |
|---|---|
| Tax | $4,176.96 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 18 JAY ST CAMBRIDGE MA 021393705, CAMBRIDGE, MA 02139-3705 |
The 2025 property tax bill for 18 Jay St was $5,942, up 3.1% from the year before.
Source: Middlesex County and Cambridge City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Cambridge City |
| Unified School District | Cambridge School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $5,942.00 (+3.14%) | $935,800 (-3.84%) Land $544,500 Building $391,300 | $1,090,885 (-12.05%) |
| 2024 | $5,761.00 (+6.78%) | $973,200 (+5.7%) Land $598,600 Building $374,600 | $1,240,415 |
| 2023 | $5,395.00 | $920,700 Land $595,000 Building $325,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 18 Jay 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 |
| Community Rating System | Class 9 (5% premium discount) |
| Nearby Flood Policies | 4 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 18 Jay 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 | CAMBRIDGE WATER DEPARTMENT serves 118,214 people · EPA ID MA3049000 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2023 |
| Lead | 8 ppb (2021–2023) 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 910 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable · Fiber in parts of the area | 2,000 / 2,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Starry.
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