Middlesex County and Lexington Town property record for 18 Oakmount Cir, Lexington, MA 02420
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 5 ba · 5,898 sqft · built 1938 |
| Lot Size | 4.84 acres (211,210 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,189,920 (Oct 1989) |
| Tax Bill | $37,485 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | LEXI M:0055 L:00021A |
| Primary APN | LEXI M:0055 L:00021A |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 5 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 5,898 sqft Living Area |
| Gross Area | 10,961 sqft |
| 1st Floor Area | 3,207 sqft |
| Attic | Attic |
| Attic Area | 1,001 sqft |
| Basement Area | 2,642 sqft |
| Unfinished Basement | 483 sqft |
| Year Built | Built 1938 |
|---|---|
| Effective Year Built | Effective 1938 |
| Architectural Style | Mansion |
| Exterior Material | Stucco |
| Roof Type | Gable |
| Roof Material | Slate |
| Lot Area | 211,210 sqft (4.84 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Oil |
| Street Address | 18 OAKMOUNT CIR |
|---|---|
| City | LEXINGTON |
| State | MA |
| Zip | 02420-3615 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RS |
| Legal Lot Number | 21A |
| Jurisdiction | LEXINGTON MA |
| Township / Civil Division | LEXINGTON |
| Census Block Group | 3 |
| Census Block | 3017 |
| Census Tract | 358700 |
18 Oakmount Cir is owned and occupied by two individuals who bought it in October 1989.
Source: Middlesex County and Lexington Town records, as of July 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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 18 OAKMOUNT CIR, LEXINGTON, MA 02420-3615 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 4, 1989 · Amount on File |
| Deed Sale | Oct 4, 1989 · Amount on File |
| Prior Sale | Jun 15, 1988 · Amount on File |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 18 Oakmount Cir was $37,485, up 5.2% from the year before.
Source: Middlesex County and Lexington Town assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| County Subdivision | Lexington Town |
| Unified School District | Lexington School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $37,485.00 (+5.23%) | $3,065,000 (+5.4%) Land $1,360,000 Building $1,705,000 | $3,543,595 (-21.51%) |
| 2024 | $35,623.00 (+6.79%) | $2,908,000 (+13.33%) Land $1,295,000 Building $1,613,000 | $4,514,590 |
| 2023 | $33,358.00 | $2,566,000 Land $1,196,000 Building $1,370,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 18 Oakmount Cir in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 9 in force |
| Nearby Flood Claims | 5 (1978–2010) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | Mar 2010 · Severe Storms And Flooding |
| Claims by Event |
|
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 18 Oakmount Cir is low, with less than 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 95% of the US · lower than 90% of Massachusetts |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | LEXINGTON WATER DEPT. (MWRA) serves 34,074 people · EPA ID MA3155000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Sep 2023 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 2 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 252 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 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
May also be available: T-Mobile.
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