18 Diamond Rd, Lexington, MA 02420 Property Records

Middlesex County and Lexington Town property record for 18 Diamond Rd, Lexington, MA 02420

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,248 sqft · built 1962
Lot Size	0.686 acres (29,875 sqft)
Owner	Individual Name on File
Last Sale	$290,000 (Oct 1990)
Tax Bill	$14,834 (2026)
Deeds & Mortgages	Apr 2020 Line of Credit Nov 2017 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`LEXI M:0082 L:00101A`

Property Details

APN / Parcel Number

Primary APN	`LEXI M:0082 L:00101A`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,248 sqft Living Area
Gross Area	3,096 sqft
1st Floor Area	1,248 sqft
Basement Area	1,248 sqft
Unfinished Basement	598 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1962
Effective Year Built	Effective 1962
Architectural Style	Contemporary
Exterior Material	Wood Siding
Roof Type	Gable
Roof Material	Other
Lot Area	29,875 sqft (0.686 acres)
Parking Spaces	3 Parking Spaces

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Oil

Location & Zoning

Street Address	18 DIAMOND RD
City	LEXINGTON
State	MA
Zip	02420-1622
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RO
Legal Subdivision	GROVE SEC 01
Legal Lot Number	101A
Jurisdiction	LEXINGTON MA
Township / Civil Division	LEXINGTON
Census Block Group	2
Census Block	2000
Census Tract	358700

Owner

18 Diamond Rd is owned by an individual who bought it in October 1990.

Source: Middlesex County and Lexington Town records, as of October 20, 2026

Owner of Record	Individual Name on File
Mailing Address	PO BOX 657, LEXINGTON, MA 02420-0006
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.

Deeds, Mortgages & Sale History

Date	Document
Apr 7, 2020	Deed of Trust, Mortgage · Line of Credit CITIZENS BK/RI
Nov 22, 2017	Deed of Trust, Mortgage · Line of Credit CITIZENS BK/RI

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 19, 1990 · Amount on File
Deed Sale	Oct 19, 1990 · Amount on File
Deed Book / Page	20828 / 82
Record Updated	Oct 29, 2026

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LEXINGTON MA
Property Address	18 DIAMOND RD, LEXINGTON, MA 02420-1622
Document Number	74587-349
Instrument Date	Apr 7, 2020
Transaction Type	Mortgage
Record Updated	May 19, 2020
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18 DIAMOND RD LEXINGTON MA 024201622, LEXINGTON, MA 02420-1622

Mortgage

Document Number	74587-349
Date	May 1, 2020
Book Page	074587/000349
Instrument	65297

Lender

Name	CITIZENS BK/RI
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	300 Months
Due	Apr 30, 2045

Interest

Rate Type	Adjustable Rate

November 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LEXINGTON MA
Property Address	18 DIAMOND RD, LEXINGTON, MA 02420-1622
Document Number	70362-349
Book / Page	070362 / 000349
Instrument Date	Nov 22, 2017
Transaction Type	Mortgage
Record Updated	Jan 3, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	70362-349
Date	Dec 11, 2017
Book Page	070362/000349
Instrument	81

Lender

Name	CITIZENS BK/RI
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

The 2026 property tax bill for 18 Diamond Rd was $14,834, up 4.4% from the year before.

Source: Middlesex County and Lexington Town assessment roll, as of April 14, 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Middlesex County
County Subdivision	Lexington Town
Unified School District	Lexington School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$14,834.00 (+4.38%)	$1,205,000 (+3.7%) Land $823,000 Building $382,000	$1,013,317 (-14.15%)
2025	$14,211.00 (+3.49%)	$1,162,000 (+3.66%) Land $784,000 Building $378,000	$1,180,280 (-0.23%)
2024	$13,732.00 (+3.66%)	$1,121,000 (+10.01%) Land $746,000 Building $375,000	$1,183,035
2023	$13,247.00	$1,019,000 Land $678,000 Building $341,000

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 18 Diamond Rd in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2001.

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 Policies	3 in force
Nearby Flood Claims	1 (2001)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Mar 2001 · Severe Storms And Flooding

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

Wildfire risk around 18 Diamond Rd 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 98% of the US · lower than 96% of Massachusetts
Wildfire Likelihood	Under 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.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 265 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
Astound Broadband Cable	1,500 / 50

May also be available: T-Mobile.

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