Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$1,072,218$1,340 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $415,000 on Dec 23, 2010

421 UPTON ST

REDWOOD CITY, CA 94062
2
Beds
1
Baths
800 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
2,750 ft²
Lot SizeThe size of the land the home sits on, from county records.
1956
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.1M
$958K low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$415,000 · Dec 23, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,111 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$542,310 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$271,155
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$271,155
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$531,678
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,057,590

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountySAN MATEO
Lot (acres)The size of the land the home sits on, from county records.0.06
RoofThe main material covering the roof, such as asphalt shingle or tile.Roll Tar & Gravel
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(10)

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.

H
Sequoia High SchoolB
High · Grades 9–12 · 1.1 mi
E
Clifford Elementary SchoolB+
Elementary · Grades KG–8 · 1.1 mi

District: Sequoia Union High School District

Neighborhood · ZIP 94062These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.93
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.569

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.28,920
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.380 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$210,767
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$290,618
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.66%

Owner Tools

Do you own this home?
Claim this home

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

421 Upton 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.

  • Worth less than 98% of homes in Redwood City 94062
  • Costs more per square foot than 80% of homes in San Mateo County
  • Among the smallest homes in Farm Hill
  • Among the smallest lots in Farm Hill

What homes are worth in Redwood City 94062

Each bar is how many homes fall in that price range. The marker is this home.

This home
$1.1M$10M

This home is worth more than 2% of homes in Redwood City 94062.

How it measures up in Redwood City 94062

The dot is this home. The mark in the middle is the typical home in Redwood City 94062.

Estimated value$1,072,218
CheaperTypical $2,743,222Pricier

Pricier than 2% of homes nearby

Price per ft²$1340
CheaperTypical $1301Pricier

Pricier than 55% of homes nearby

Living area800 ft²
SmallerTypical 2,200 ft²Bigger

Bigger than 2% of homes nearby

Lot size2,750 ft²
SmallerTypical 0.26 acBigger

Smaller than almost all homes nearby

Year built1956
OlderTypical 1954Newer

Newer than 54% of homes nearby

How 421 Upton St ranks against every home in each area.
MeasureThis homeFarm HillRedwood City 94062San Mateo County
Estimated valuepricier than$1,072,21812% of homes2% of homes26% of homes
Price per ft²pricier than$134070% of homes55% of homes80% of homes
Living areabigger than800 ft²almost no homes2% of homes3% of homes
Lot sizebigger than2,750 ft²almost no homesalmost no homes8% of homes
Year builtnewer than195639% of homes54% of homes46% of homes

About 421 Upton St

How much is 421 Upton St, Redwood City, CA worth?

The TopHap Estimate for 421 Upton St, Redwood City, CA is $1,072,218 as of Sep 24, 2026. The likely range is $957,702 to $1,186,734. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Upton St, Redwood City, CA last sell?

421 Upton St, Redwood City, CA last sold on Dec 23, 2010 for $415,000, according to the county's recorded deed. TopHap holds 6 recorded sales for this parcel.

How big is 421 Upton St, Redwood City, CA?

421 Upton St, Redwood City, CA has 2 bedrooms, 1 bathrooms, 800 square feet of living space and a 0.06-acre lot.

When was 421 Upton St, Redwood City, CA built?

421 Upton St, Redwood City, CA was built in 1956, making it 70 years old. It is a ranch home. The building has 1 story.

What schools serve 421 Upton St, Redwood City, CA?

421 Upton St, Redwood City, CA is assigned to Sequoia High School (high), rated B; Clifford Elementary School (elementary), rated B+. All sit in Sequoia Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Upton St, Redwood City, CA compare to other homes in Redwood City 94062?

Among the 8,854 homes in Redwood City 94062, it is worth more than 2% of them ($1,072,218 against a typical $2,743,222), its price per square foot is higher than 55% of them ($1340 against a typical $1301), it is bigger than 2% of them (800 ft² against a typical 2,200 ft²), its lot is bigger than almost none of them (2,750 ft² against a typical 0.26 ac) and it is newer than 54% of them (1956 against a typical 1954). Measured against all of San Mateo County, it is worth more than 26% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 421 Upton St, Redwood City, CA?

The 2025 property tax bill for 421 Upton St, Redwood City, CA was $8,111. The county assessed it at $542,310.

More homes on Upton St

Closest homes

More homes in Redwood City 94062

Assigned schools

Explore the area

See this home in context

Open 421 Upton St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map