Middlesex County and Cambridge City property record for 18 Decatur St, Cambridge, MA 02139
| Property Type | Condominium |
|---|---|
| Details | 3 bd · 2.5 ba · 1,363 sqft · built 2004 |
| Lot Size | 0.641 acres (27,932 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $1,920,000 (Sep 2026) |
| Tax Bill | $10,393 (2025) |
| Deeds & Mortgages | Sep 2026 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 94-38-18D |
| Primary APN | 94-38-18D |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 3 Stories |
| Building Area | 1,363 sqft Living Area |
| Gross Area | 1,915 sqft |
| 1st Floor Area | 1,363 sqft |
| Basement Area | 248 sqft |
| Unfinished Basement | 248 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Central Vacuum | Central Vacuum |
| Year Built | Built 2004 |
|---|---|
| Effective Year Built | Effective 2004 |
| Architectural Style | Other |
| Lot Area | 27,932 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 18 DECATUR ST |
|---|---|
| City | CAMBRIDGE |
| State | MA |
| Zip | 02139-4002 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Legal Lot Number | 380018D |
| Jurisdiction | CAMBRIDGE MA |
| Township / Civil Division | CAMBRIDGE |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 353200 |
Source: Middlesex County and Cambridge City records, as of October 21, 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 | 2 Company Names on Record |
|---|---|
| Mailing Address | 18 DECATUR ST, 18, CAMBRIDGE, MA 02139-4002 |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 30, 2026 · Amount on Record |
| Deed Sale | Sep 30, 2026 · Amount on Record |
| Prior Sale | Dec 16, 2016 · Amount on Record |
| Deed Document Number | 2026123868 |
| Deed Book / Page | 86195 / 221 |
| Prior Transfer Date | Sep 7, 2026 |
| Prior Transfer Doc | 0000123868 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CAMBRIDGE MA |
| Recording Date | Sep 30, 2026 |
| Property Address | 18 DECATUR ST, CAMBRIDGE, MA 02139-4002 |
| Document Number | 0000123868 |
| Book / Page | 86195 / 221 |
| Instrument Date | Sep 7, 2026 |
| Instrument | 2026123868 |
| Transaction Type | Transfer |
| Record Updated | Oct 21, 2026 |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 18 DECATUR ST, 18, CAMBRIDGE, MA 02139-4002 |
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 | $10,393.00 (+10.65%) | $1,636,700 (+3.15%) Building $1,636,700 | $1,873,020 (+7.13%) |
| 2024 | $9,393.00 (+7.68%) | $1,586,700 (+6.59%) Building $1,586,700 | $1,748,380 |
| 2023 | $8,723.00 | $1,488,600 Building $1,488,600 |
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 | 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.
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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