100 Summit St, Waltham, MA 02451 Property Records

Middlesex County and Waltham City property record for 100 Summit St, Waltham, MA 02451

Property Summary

Property Type	Single Family Home
Details	3 bd · 1.5 ba · 2,475 sqft · built 1914
Lot Size	0.12 acres (5,236 sqft)
Owner	Individual Name on File
Last Sale	$615,000 (May 2018)
Tax Bill	$7,049 (2025)
Deeds & Mortgages	Oct 2024 Line of Credit Jul 2019 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`108724`

Property Details

APN / Parcel Number

Primary APN	`108724`
Alternative APN	`WALT M:049 B:004 L:0007`

Interior

Bedrooms	3 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	2,475 sqft Living Area
Gross Area	2,880 sqft
Basement Area	900 sqft
Finished Basement	900 sqft
Unfinished Basement	900 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1914
Effective Year Built	Effective 1914
Architectural Style	Colonial
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	5,236 sqft (0.12 acres)
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Oil

Location & Zoning

Account Number	108724
Street Address	100 SUMMIT ST
City	WALTHAM
State	MA
Zip	02451-2973
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	1
Legal Block	4
Legal Lot Number	7
Jurisdiction	WALTHAM MA
Township / Civil Division	WALTHAM
Census Block Group	1
Census Block	1006
Census Tract	368200

Owner

Source: Middlesex County and Waltham City assessment roll, as of April 14, 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 File
Mailing Address	100 SUMMIT ST, WALTHAM, MA 02451-2973
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Oct 17, 2024	Deed of Trust, Mortgage · Line of Credit PNC BANK NA
Jul 16, 2019	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE
May 24, 2018	Quit Claim Deed, Transfer · Conventional Mortgage GUARANTEED RATE

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	May 24, 2018 · Amount on Record
Deed Sale	May 24, 2018 · Amount on Record
Prior Sale	May 18, 2005 · Amount on Record
Deed Book / Page	71053 / 490
Record Updated	Sep 20, 2026

October 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WALTHAM MA
Property Address	100 SUMMIT ST, WALTHAM, MA 02451-2973
Transaction Type	Mortgage
Record Updated	Apr 3, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	083361-437
Date	Oct 17, 2024
Book Page	83361/437
Instrument	117983

Lender

Name	PNC BANK NA
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	481 Months
Due	Nov 1, 2064

Interest

Rate Type	Adjustable Rate

July 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WALTHAM MA
Property Address	100 SUMMIT ST, WALTHAM, MA 02451-2973
Document Number	72966-194
Instrument Date	Jul 16, 2019
Transaction Type	Mortgage
Record Updated	Aug 6, 2019
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	100 SUMMIT ST WALTHAM MA 024512973, WALTHAM, MA 02451-2973

Mortgage

Document Number	72966-194
Date	Jul 22, 2019
Book Page	072966/000194
Instrument	104689

Lender

Name	GUARANTEED RATE

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jul 21, 2049

May 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	WALTHAM MA
Recording Date	May 24, 2018
Property Address	100 SUMMIT ST, WALTHAM, MA 02451-2973
Document Number	71053-490
Book / Page	071053 / 000490
Instrument Date	May 18, 2018
Instrument	73129
Transaction Type	Transfer
Record Updated	Aug 8, 2018

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$2,804.40
Amount Accuracy	Confirmed
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	100 SUMMIT ST WALTHAM MA 024512973, WALTHAM, MA 02451-2973

Mortgage

Document Number	71053-493
Date	May 24, 2018
Book Page	071053/000493
Instrument	73130

Lender

Name	GUARANTEED RATE

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 23, 2048

Tax Assessment & Valuation

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
2025	$7,049.00 (+2.34%)	$717,800 (+0.46%) Land $380,500 Building $337,300	$901,835 (-1.61%)
2024	$6,888.00 (+1.31%)	$714,500 (+8.45%) Land $380,500 Building $334,000	$916,560
2023	$6,799.00	$658,800 Land $345,300 Building $313,500

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

Flood

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 Claims	8 (1979–2010)
Claims Outside the SFHA	3 of 8
Most Recent Claim	Mar 2010 · Severe Storms And Flooding
Claims by Event	Severe Storms And Flooding, Mar 2001 · 2 claims

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

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.

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 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 / 2,000
Astound Broadband Cable	1,500 / 50

Cell Coverage

5G (outdoors only) and 4G LTE

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