14 Sioux Ave, Waltham, MA 02451 Property Records

Middlesex County and Waltham City property record for 14 Sioux Ave, Waltham, MA 02451

Property Summary

Property Type	Single Family Home
Details	2 bd · 1.5 ba · 1,824 sqft · built 1960
Lot Size	0.087 acres (3,798 sqft)
Owner	Individual Name on File
Last Sale	$480,000 (May 2019)
Tax Bill	$5,664 (2026)
Deeds & Mortgages	Sep 2023 Line of Credit Sep 2021 Refinance + 1 more
Flood Zone	Zone X (minimal risk)
APN	`125448`

Property Details

APN / Parcel Number

Primary APN	`125448`
Alternative APN	`WALT M:023 B:003 L:0004`

Interior

Bedrooms	2 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	4 Rooms
Stories	1 Story
Building Area	1,824 sqft Living Area
Gross Area	1,984 sqft
Basement Area	912 sqft
Finished Basement	912 sqft
Unfinished Basement	912 sqft

Exterior

Year Built	Built 1960
Effective Year Built	Effective 1965
Architectural Style	Ranch
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Hip
Roof Material	Asphalt
Lot Area	3,798 sqft (0.087 acres)
Garage Type	Basement

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	125448
Street Address	14 SIOUX AVE
City	WALTHAM
State	MA
Zip	02451-3218
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	1
Legal Block	3
Legal Lot Number	4
Jurisdiction	WALTHAM MA
Township / Civil Division	WALTHAM
Census Block Group	3
Census Block	3008
Census Tract	368101

Owner

14 Sioux Ave is owned and occupied by an individual who bought it in May 2019.

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

Owner of Record	Individual Name on File
Mailing Address	14 SIOUX AVE, WALTHAM, MA 02451-3218
Occupancy	Owner Occupied
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
Sep 21, 2023	Deed of Trust, Mortgage · Line of Credit DIGITAL FCU
Sep 10, 2021	Deed of Trust, Mortgage · Stand-Alone Refinance QUICKEN LOANS INC
May 21, 2019	Quit Claim Deed, Transfer · Conventional Mortgage BANK OF AMERICA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 21, 2019 · Amount on File
Deed Sale	May 21, 2019 · Amount on File
Prior Sale	Sep 29, 2004 · Amount on File
Deed Document Number	201966410
Deed Book / Page	72634 / 108
Prior Transfer Date	Apr 30, 2019
Prior Transfer Doc	72634-108
Record Updated	Oct 29, 2026

September 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WALTHAM MA
Property Address	14 SIOUX AVE, WALTHAM, MA 02451-3218
Transaction Type	Mortgage
Record Updated	Oct 9, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	082017-575
Date	Sep 21, 2023
Book Page	82017/575
Instrument	106565

Lender

Name	DIGITAL FCU
Type	Credit Union

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	481 Months
Due	Oct 1, 2063

Interest

Rate Type	Adjustable Rate

September 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WALTHAM MA
Property Address	14 SIOUX AVE, WALTHAM, MA 02451-3218
Transaction Type	Mortgage
Record Updated	Sep 24, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	78669-321
Date	Sep 10, 2021
Book Page	78669/321
Instrument	202079

Lender

Name	QUICKEN LOANS INC
Type	Lending Institution

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record
Term	181 Months
Due	Oct 1, 2036

May 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	WALTHAM MA
Recording Date	May 21, 2019
Property Address	14 SIOUX AVE, WALTHAM, MA 02451-3218
Document Number	72634-108
Book / Page	072634 / 000108
Instrument Date	Apr 30, 2019
Instrument	66410
Transaction Type	Transfer
Record Updated	Jun 4, 2019
Title Company	NOT AVAILABLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,188.80
Amount Accuracy	Confirmed
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	14 SIOUX AVE WALTHAM MA 024513218, WALTHAM, MA 02451-3218

Mortgage

Document Number	72634-113
Date	May 21, 2019
Book Page	072634/000113
Instrument	66411

Lender

Name	BANK OF AMERICA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	May 20, 2049

Tax Assessment & Valuation

The 2026 property tax bill for 14 Sioux Ave was $5,664, up 5.2% 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	$5,664.00 (+5.24%)	$548,800 (+0.13%) Land $342,100 Building $206,700	$667,841 (-7.37%)
2025	$5,382.00 (+5.51%)	$548,100 (+3.57%) Land $326,500 Building $221,600	$720,955 (+10.74%)
2024	$5,101.00 (+0.59%)	$529,200 (+7.69%) Land $311,000 Building $218,200	$651,035
2023	$5,071.00	$491,400 Land $283,900 Building $207,500

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

Flood

FEMA maps place 14 Sioux Ave 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
Flood Insurance Cost	Premium on File median of 15 individual policies
Nearby Flood Policies	17 units insured incl. 2 condo units
Nearby Flood Claims	35 (1978–2014)
Claims Outside the SFHA	9 of 35
Most Recent Claim	Dec 2014 · other causes
Claims by Event	Severe Storms And Flooding, Mar 2010 · 13 claims Severe Storms And Flooding, Oct 2005 · 6 claims Extreme Weather Conditons And Flooding, Oct 1996 · 4 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

The area around 14 Sioux Ave has no burnable land within ember reach, so its wildfire risk is not rated.

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 664 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
AT&T Fixed Wireless	100 / 20

May also be available: T-Mobile.

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