423 40TH ST
Valuation
Tax & Assessment
Climate Risk
Scores 0–100; higher = greater projected risk.
Property Facts
Transaction History(8)
Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.Foreclosure Filings(4)
Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
District: West Contra Costa Unified School District
Neighborhood · ZIP 94805These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
Index scale: 100 = US average (tick). Lower is better.
Ownership
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
How this home compares
423 40th St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.
- Among the largest homes in Richmond 94805
- Has a bigger lot than 95% of homes in Richmond 94805
- Newer than 93% of homes in Richmond 94805
How it measures up in Richmond 94805
The dot is this home. The mark in the middle is the typical home in Richmond 94805.
Bigger than almost all homes nearby
Bigger than 95% of homes nearby
Newer than 93% of homes nearby
| Measure | This home | Richmond 94805 | Contra Costa County |
|---|---|---|---|
| Living areabigger than | 4,642 ft² | almost all homes | 98% of homes |
| Lot sizebigger than | 0.17 ac | 95% of homes | 60% of homes |
| Year builtnewer than | 1965 | 93% of homes | 33% of homes |
About 423 40th St
When did 423 40th St, Richmond, CA last sell?
423 40th St, Richmond, CA last sold on Jun 11, 2024 for $1,425,000, according to the county's recorded deed. TopHap holds 6 recorded sales for this parcel.
How big is 423 40th St, Richmond, CA?
423 40th St, Richmond, CA has 4,642 square feet of living space and a 0.17-acre lot.
When was 423 40th St, Richmond, CA built?
423 40th St, Richmond, CA was built in 1965, making it 61 years old. The building has 1 story.
What schools serve 423 40th St, Richmond, CA?
423 40th St, Richmond, CA is assigned to DeJean Middle School (middle), rated F; King Elementary School (elementary), rated D-; Kennedy High School (high), rated D. All sit in West Contra Costa Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.
How does 423 40th St, Richmond, CA compare to other homes in Richmond 94805?
Among the 4,505 homes in Richmond 94805, it is bigger than almost all of them (4,642 ft² against a typical 1,304 ft²), its lot is bigger than 95% of them (0.17 ac against a typical 0.11 ac) and it is newer than 93% of them (1965 against a typical 1946). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 423 40th St, Richmond, CA?
The 2025 property tax bill for 423 40th St, Richmond, CA was $27,915. The county assessed it at $1,482,570.
More homes on 40th St
- 712 40th St$799K3 bd · 2 ba · 1,181 ft² · Sold $800K · Apr 2026
- 663 40th St$649K2 bd · 1 ba · 1,102 ft² · Sold $650K · Mar 2026
- 320 40th St$588K2 bd · 1 ba · 956 ft² · Sold $589K · Dec 2025
- 715 40th St$647K3 bd · 1 ba · 1,107 ft² · Sold $650K · May 2025
- 669 40th St$768K3 bd · 1 ba · 1,199 ft² · Sold $773K · Apr 2025
- 525 40th St$660K3 bd · 2 ba · 1,071 ft² · Sold $680K · Jun 2024
- 661 40th St$735K3 bd · 2 ba · 1,305 ft² · Sold $730K · Dec 2023
- 636 40th St$734K3 bd · 1.5 ba · 1,584 ft² · Sold $710K · Oct 2023
- 645 40th St$634K2 bd · 1 ba · 891 ft² · Sold $650K · Apr 2023
- 546 40th St$601K2 bd · 1 ba · 938 ft² · Sold $595K · Aug 2022
- 701 40th St4 bd · 4 ba · 2,430 ft² · Sold $965K · Dec 2021
- 630 40th St$641K2 bd · 1.5 ba · 1,164 ft² · Sold $580K · Nov 2021
Closest homes
- 431 40th St$609K62 ft · 3 bd · 1.5 ba · 1,441 ft² · Sold $250K · Jun 2008
- 3929 Nevin Ave$718K90 ft · 5 bd · 3.5 ba · 2,035 ft² · Sold $720K · Sep 2025
- 3919 Nevin Ave$577K90 ft · 3 bd · 1 ba · 1,301 ft² · Sold $470K · Jan 2021
- 443 40th St$485K106 ft · 2 bd · 1 ba · 1,022 ft² · Sold $70K · Feb 2009
- 426 39th St$536K104 ft · 2 bd · 1 ba · 1,232 ft² · Sold Jan 1900
- 420 39th St$532K101 ft · 3 bd · 1 ba · 999 ft² · Sold $139K · Mar 2005
- 3911 Nevin Ave114 ft · 3 bd · 2 ba · 1,537 ft² · Sold $370K · Apr 2015
- 430 39th St$423K118 ft · 2 bd · 1 ba · 897 ft² · Sold Jan 1900
More homes in Richmond 94805
- 418 44th St$489K2 bd · 1 ba · 800 ft² · Sold $550K · Aug 2026
- 438 43rd St$550K2 bd · 1 ba · 881 ft² · Sold $530K · Aug 2026
- 725 Boyd Ave$511K2 bd · 1 ba · 927 ft² · Sold $470K · Jul 2026
- 329 45th St$600K3 bd · 2 ba · 1,097 ft² · Sold $607K · Jul 2026
- 439 44th St$475K3 bd · 1 ba · 1,101 ft² · Sold $550K · Jul 2026
- 1610 Olive Ave$597K2 bd · 1 ba · 684 ft² · Sold $400K · Jul 2026
- 5411 Garvin Ave$700K2 bd · 2 ba · 1,491 ft² · Sold $800K · Jul 2026
- 6630 Arlington Blvd$1.2M3 bd · 2 ba · 1,615 ft² · Sold $1.2M · Jul 2026
- 628 Kern St$1.2M3 bd · 1.5 ba · 1,328 ft² · Sold $1.2M · Jul 2026
- 6110 Ralston Ave$688K2 bd · 1 ba · 720 ft² · Sold $689K · Jun 2026
- 1514 Olive Ave$659K1 bd · 1 ba · 590 ft² · Sold $660K · Jun 2026
- 5501 Mcbryde Ave$785K4 bd · 4 ba · 2,113 ft² · Sold $785K · Jun 2026
Assigned schools
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