18 Rock Ln, Waltham, MA 02451 Property Records

Middlesex County and Waltham City property record for 18 Rock Ln, Waltham, MA 02451

Property Summary

Property Type	Single Family Home
Details	2.5 ba · 2,654 sqft · built 2015
Lot Size	0.232 acres (10,110 sqft)
Owner	2 Trust Names on File
Tax Bill	$13,392 (2026)
Deeds & Mortgages	Sep 2020 Refinance Sep 2018 Transfer
Flood Zone	Zone X (minimal risk)
APN	`211866`

Property Details

APN / Parcel Number

Primary APN	`211866`
Alternative APN	`WALT M:042 B:009 L:011E`

Interior

Full Baths	2.5 Baths
Half Baths	1 Half Bath
Stories	2 Stories
Building Area	2,654 sqft Living Area
Gross Area	4,484 sqft
Basement Area	1,074 sqft
Unfinished Basement	1,074 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2015
Effective Year Built	Effective 2015
Architectural Style	Colonial
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	10,110 sqft (0.232 acres)
Garage Type	Attached

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C
Heating Fuel	Gas

Location & Zoning

Account Number	211866
Street Address	18 ROCK LN
City	WALTHAM
State	MA
Zip	02451-1452
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Block	9
Legal Lot Number	11E
Jurisdiction	WALTHAM MA
Township / Civil Division	WALTHAM
Census Block Group	1
Census Block	1000
Census Tract	368300

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic District	Within the Piety Corner Historic District listed 1990 · 33 contributing resources · NRIS 89001499

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

18 Rock Ln is owner-occupied and held in a trust since September 2018.

Source: Middlesex County and Waltham City records, as of October 20, 2026

Owner of Record	2 Trust Names on File
Mailing Address	18 ROCK LN, WALTHAM, MA 02451-1452
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

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
Sep 30, 2020	Deed of Trust, Mortgage · Stand-Alone Refinance NEEDHAM BANK
Sep 28, 2018	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 28, 2018
Deed Sale	Sep 28, 2018
Prior Sale	Apr 15, 2016 · Amount on File
Deed Book / Page	71680 / 597
Transfer Doc	067099-220
Record Updated	Oct 29, 2026

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WALTHAM MA
Property Address	18 ROCK LN, WALTHAM, MA 02451-1452
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	75760-459
Date	Sep 30, 2020
Book Page	75760/459
Instrument	174811

Lender

Name	NEEDHAM BANK

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2050

September 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	WALTHAM MA
Recording Date	Sep 28, 2018
Property Address	18 ROCK LN, WALTHAM, MA 02451-1452
Document Number	71680-597
Book / Page	071680 / 000597
Instrument Date	Sep 14, 2018
Instrument	150156
Transaction Type	Transfer
Record Updated	Jan 16, 2019

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	18 ROCK LN WALTHAM MA 024511452, WALTHAM, MA 02451-1452

Tax Assessment & Valuation

The 2026 property tax bill for 18 Rock Ln was $13,392, up 8.3% from the year before.

Source: Middlesex County and Waltham City assessment roll, as of April 14, 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Middlesex County
Municipality	Waltham City
Unified School District	Waltham School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$13,392.00 (+8.31%)	$1,297,700 (+3.07%) Land $405,900 Building $891,800	$1,366,613 (+13.27%)
2025	$12,364.00 (+2.57%)	$1,259,100 (+0.7%) Land $405,100 Building $854,000	$1,206,500 (-4.43%)
2024	$12,054.00 (+0.44%)	$1,250,400 (+7.52%) Land $405,100 Building $845,300	$1,262,360
2023	$12,001.00	$1,162,900 Land $369,000 Building $793,900

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

Flood

FEMA maps place 18 Rock Ln 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 Claims	2 (1982–1996)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Oct 1996 · Extreme Weather Conditons 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 Rock Ln 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	WALTHAM WATER DEPARTMENT serves 65,218 people · EPA ID MA3308000
Water Source	Purchased surface water from MWRA
Last State Inspection	Jun 2024
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	1 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 108 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 / 2,000
Astound Broadband Cable	1,500 / 50

May also be available: T-Mobile.

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