Middlesex County and Cambridge City property record for 30 Bay St, Cambridge, MA 02139
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,871 sqft · built 1902 |
| Lot Size | 0.043 acres (1,880 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $1,208,000 (Jul 2016) |
| Tax Bill | $13,873 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 120-2 |
| Primary APN | 120-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 3 Stories |
| Building Area | 1,871 sqft Living Area |
| Gross Area | 3,221 sqft |
| 1st Floor Area | 690 sqft |
| Basement Area | 675 sqft |
| Unfinished Basement | 675 sqft |
| Central Vacuum | Central Vacuum |
| Year Built | Built 1902 |
|---|---|
| Effective Year Built | Effective 1902 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Siding |
| Construction Type | Concrete |
| Roof Type | Shed Roof |
| Roof Material | Asphalt |
| Lot Area | 1,880 sqft (0.043 acres) |
| Garage Type | Covered |
| Parking Spaces | 1 Parking Space |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Street Address | 30 BAY ST |
|---|---|
| City | CAMBRIDGE |
| State | MA |
| Zip | 02139-3147 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | C-1 |
| Legal Lot Number | 2 |
| Jurisdiction | CAMBRIDGE MA |
| Township / Civil Division | CAMBRIDGE |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 359400 |
Source: Middlesex County and Cambridge City records, as of July 20, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 30 BAY ST, CAMBRIDGE, MA 02139-3147 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 19, 2016 · Amount on Record |
| Deed Sale | Jul 19, 2016 · Amount on Record |
| Deed Document Number | 2016120362 |
| Deed Book / Page | 67643 / 575 |
| Record Updated | Sep 20, 2026 |
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 | $13,873.00 (+6.03%) | $2,184,800 (-1.14%) Land $736,100 Building $1,448,700 | $2,170,750 (+2.22%) |
| 2024 | $13,084.00 (+9.8%) | $2,210,100 (+8.69%) Land $797,300 Building $1,412,800 | $2,123,535 |
| 2023 | $11,916.00 | $2,033,400 Land $812,100 Building $1,221,300 |
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 |
| Community Rating System | Class 9 (5% premium discount) |
| Nearby Flood Policies | 3 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 | 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 536 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Starry Fixed Wireless | 500 / 200 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures