42 Knox Dr, Lafayette, CA 94549 Property Records

Contra Costa County property record for 42 Knox Dr, Lafayette, CA 94549

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,082 sqft · built 1978
Lot Size	0.518 acres (22,572 sqft)
Owner	Individual Name on File
Last Sale	$1,610,000 (Jul 2020)
Tax Bill	$21,083 (2025)
Deeds & Mortgages	Sep 2021 Mortgage Jul 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`251-050-013-1`

Property Details

APN / Parcel Number

Primary APN	`251-050-013-1`
Alternative APN	`251-050-013`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,082 sqft Living Area
1st Floor Area	1,317 sqft
2nd Floor Area	765 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1978
Effective Year Built	Effective 2000
Architectural Style	Ranch
Exterior Material	Wood Siding
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	22,572 sqft (0.518 acres)
View / Lot	Woodland
Garage Type	Detached
Garage Area	460 sqft
Parking Spaces	2 Parking Spaces
Deck Area	Deck Area

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	42 KNOX DR
City	LAFAYETTE
State	CA
Zip	94549-3323
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R20
Legal Description	RECORD OF SURVEY 36 LSM 40 PCL C
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2000
Census Tract	353002

Owner

42 Knox Dr is owned and occupied by an individual who bought it in July 2020.

Source: Contra Costa County records, as of July 14, 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	Individual Name on File
Mailing Address	42 KNOX DR, LAFAYETTE, CA 94549-3323
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Sep 22, 2021	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC
Jul 31, 2020	Grant Deed, Transfer GUARANTEED RATE

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jul 31, 2020 · Amount on File
Deed Sale	Jul 31, 2020 · Amount on File
Prior Sale	Jul 17, 2014 · Amount on File
Deed Document Number	2020158720
Prior Transfer Date	Jul 30, 1997
Prior Transfer Doc	0000138420
Record Updated	Oct 29, 2026

September 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	42 KNOX DR, LAFAYETTE, CA 94549-3323
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	42 KNOX DR, LAFAYETTE, CA 94549-3323

Mortgage

Document Number	0000264020
Date	Sep 22, 2021
Instrument	2021-264020

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2051

July 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 31, 2020
Property Address	42 KNOX DR, LAFAYETTE, CA 94549-3323
Document Number	0000158720
Instrument Date	Jul 25, 2020
Instrument	158720
Transaction Type	Transfer
Record Updated	Aug 11, 2020
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$1,771.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	42 KNOX DR LAFAYETTE CA 945493323, LAFAYETTE, CA 94549-3323

Mortgage

Document Number	158721
Date	Jul 31, 2020
Instrument	158721

Lender

Name	GUARANTEED RATE
Address	3940 N RAVENSWOOD AVE, CHICAGO, IL 60613-2420

Agreement

Amount	Amount on Record
Term	360 Months
Due	Jul 30, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 42 Knox Dr was $21,083.

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Lafayette City
Secondary School District	Acalanes Union High School District (09 - 12)
Elementary School District	Lafayette Elementary School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,777,567 (+2%) Land $1,225,527 Building $552,040
2025	$21,083.00	$1,742,714 Land $1,201,498 Building $541,216
2023	$20,370.00 (+1.55%)	$1,675,044 Land $1,154,844 Building $520,200
2022	$20,060.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 42 Knox Dr in Zone X, an area of minimal flood risk, though there have been 6 flood claims nearby since 1978.

Source: FEMA National Flood Hazard Layer, effective October 12, 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	2 in force
Nearby Flood Claims	6 (1978–2021)
Claims Outside the SFHA	2 of 6
Most Recent Claim	Oct 2021 · rainfall accumulation

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 42 Knox Dr is low, with a 0.03% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 94% of the US · lower than 96% of California
Wildfire Likelihood	0.03% 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	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 277 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250

May also be available: AT&T, Etheric Networks, Unwired.

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Knox Dr

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