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CondominiumResidential

401 S Norfolk St

SAN MATEO, CA 94401
1.57 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.
Built 20023 floors67 units729–1,115 ft²
$43M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$684K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$746
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-28.6%vs the San Mateo ZIP median sale $/ft² ($1045)

Sales Performance

$695K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
-9.5%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
3
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
4.5%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+3.7%per yeartypical hold 6.4 yrsfrom 85 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20022005201020132016201920232026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20022005201020132016201920232026

149 arms-length sales on record for this building.

Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.

Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
$132K$367K$601K$836K729 ft²806 ft²883 ft²961 ft²1,038 ft²1,115 ft²
1 bd2 bd
1 bed
13 units
2 bed
54 units
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
2 bd · 2 ba · 913 ft²
42 units
1 bd · 1 ba · 729 ft²
12 units
2 bd · 2 ba · 1,115 ft²
12 units
One-off layouts
1 unit

Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.

$132K–$132K
1 unit
$492K–$569K
10 units
$579K–$653K
10 units
$670K–$747K
32 units
$749K–$836K
11 units

Value by Floor & LineAverage estimated price per square foot by floor range, using unit numbers to infer floors. Higher floors usually price higher — the gap shows how much the view is worth here.

Floor 1
$742/ft²
Floor 2
$721/ft²
Floor 3
$743/ft²
Unit lines by $/ft²Condo units stacked vertically share a unit line — the last digits of the unit number (like 05 in 1205, 1305, 1405). Lines share a layout and exposure, so comparing estimated $/ft² by line shows which position in the building commands a premium.
Line ·21
$828/ft²
Line ·16
$794/ft²
Line ·14
$777/ft²
Line ·12
$775/ft²
Line ·11
$764/ft²
Line ·02
$762/ft²
Line ·01
$760/ft²
Line ·08
$743/ft²
Line ·07
$742/ft²
Line ·13
$740/ft²
Line ·09
$738/ft²
Line ·06
$737/ft²

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.61%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.31%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.14.5 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.19%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.58%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$612,528
Median tax billThe middle annual property tax bill among the building's units.$8,341
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.1

Recent SalesThe latest recorded arms-length sales in the building, newest first.

Unit 216Jun 29, 2026$695,000Unit 222Dec 3, 2025$138,500Unit 315Sep 25, 2025$732,000Unit 110Sep 2, 2025$790,000Unit 305Aug 29, 2025$735,000Unit 117Jul 25, 2025$700,000Unit 103Jul 24, 2025$768,000Unit 214Dec 6, 2024$775,000Unit 310May 14, 2024$820,000Unit 221May 13, 2024$585,000

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.1 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountySAN MATEO
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
LEAD Elementary SchoolD
Elementary · Grades KG–5 · 0.5 mi
M
Bayside AcademyB-
Middle · Grades KG–8 · 0.9 mi
H
Aragon High SchoolA+
High · Grades 9–12 · 1.9 mi

District: San Mateo-Foster City Elementary School District

Neighborhood · ZIP 94401These 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.105
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 100.537

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.32,992
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,021 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$113,608
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$152,157
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.20 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.66%

All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.

401 S Norfolk St # 101
1 bd · 1 ba · 729 ft²
$492K
401 S Norfolk St # 102
1 bd · 1 ba · 729 ft²
$543K
401 S Norfolk St # 103
2 bd · 2 ba · 1,115 ft²
$715K
401 S Norfolk St # 104
2 bd · 2 ba · 913 ft²
$704K
401 S Norfolk St # 105
2 bd · 2 ba · 913 ft²
$564K
401 S Norfolk St # 106
2 bd · 2 ba · 913 ft²
$642K
401 S Norfolk St # 107
2 bd · 2 ba · 913 ft²
$649K
401 S Norfolk St # 108
2 bd · 2 ba · 913 ft²
$680K
401 S Norfolk St # 109
2 bd · 2 ba · 913 ft²
$701K
401 S Norfolk St # 110
2 bd · 2 ba · 1,115 ft²
$743K
401 S Norfolk St # 111
2 bd · 2 ba · 913 ft²
$707K
401 S Norfolk St # 112
2 bd · 2 ba · 913 ft²
$718K
401 S Norfolk St # 113
2 bd · 2 ba · 1,115 ft²
$827K
401 S Norfolk St # 114
2 bd · 2 ba · 913 ft²
$759K
401 S Norfolk St # 115
2 bd · 2 ba · 913 ft²
$569K
401 S Norfolk St # 116
2 bd · 2 ba · 913 ft²
$749K
401 S Norfolk St # 117
2 bd · 2 ba · 913 ft²
$652K
401 S Norfolk St # 118
2 bd · 2 ba · 913 ft²
401 S Norfolk St # 119
2 bd · 2 ba · 913 ft²
$703K
401 S Norfolk St # 120
2 bd · 2 ba · 1,115 ft²
$836K
401 S Norfolk St # 121
1 bd · 1 ba · 729 ft²
$677K
401 S Norfolk St # 122
1 bd · 1 ba · 729 ft²
$549K
401 S Norfolk St # 123
1 bd · 1 ba · 734 ft²
$579K
401 S Norfolk St # 201
1 bd · 1 ba · 729 ft²
$612K
401 S Norfolk St # 202
1 bd · 1 ba · 729 ft²
$600K
401 S Norfolk St # 203
2 bd · 2 ba · 1,115 ft²
$819K
401 S Norfolk St # 204
2 bd · 2 ba · 913 ft²
$679K
401 S Norfolk St # 205
2 bd · 2 ba · 913 ft²
$653K
401 S Norfolk St # 206
2 bd · 2 ba · 913 ft²
$675K
401 S Norfolk St # 207
2 bd · 2 ba · 913 ft²
$682K
401 S Norfolk St # 208
2 bd · 2 ba · 913 ft²
$684K
401 S Norfolk St # 209
2 bd · 2 ba · 913 ft²
$644K
401 S Norfolk St # 210
2 bd · 2 ba · 1,115 ft²
$799K
401 S Norfolk St # 211
2 bd · 2 ba · 913 ft²
$685K
401 S Norfolk St # 212
2 bd · 2 ba · 913 ft²
$701K
401 S Norfolk St # 213
2 bd · 2 ba · 1,115 ft²
$819K
401 S Norfolk St # 214
2 bd · 2 ba · 913 ft²
$699K
401 S Norfolk St # 215
2 bd · 2 ba · 913 ft²
$756K
401 S Norfolk St # 216
2 bd · 2 ba · 913 ft²
$687K
401 S Norfolk St # 217
2 bd · 2 ba · 913 ft²
$569K
401 S Norfolk St # 218
2 bd · 2 ba · 913 ft²
$700K
401 S Norfolk St # 219
2 bd · 2 ba · 913 ft²
401 S Norfolk St # 220
2 bd · 2 ba · 1,115 ft²
$742K
401 S Norfolk St # 221
1 bd · 1 ba · 729 ft²
$585K
401 S Norfolk St # 222
1 bd · 1 ba · 729 ft²
$132K
401 S Norfolk St # 301
1 bd · 1 ba · 729 ft²
$559K
401 S Norfolk St # 302
1 bd · 1 ba · 729 ft²
$524K
401 S Norfolk St # 303
2 bd · 2 ba · 1,115 ft²
$805K
401 S Norfolk St # 304
2 bd · 2 ba · 913 ft²
$609K
401 S Norfolk St # 305
2 bd · 2 ba · 913 ft²
401 S Norfolk St # 306
2 bd · 2 ba · 913 ft²
$700K
401 S Norfolk St # 307
2 bd · 2 ba · 913 ft²
$700K
401 S Norfolk St # 308
2 bd · 2 ba · 913 ft²
$672K
401 S Norfolk St # 309
2 bd · 2 ba · 913 ft²
$675K
401 S Norfolk St # 310
2 bd · 2 ba · 1,115 ft²
$747K
401 S Norfolk St # 311
2 bd · 2 ba · 913 ft²
$702K
401 S Norfolk St # 312
2 bd · 2 ba · 913 ft²
$703K
401 S Norfolk St # 313
2 bd · 2 ba · 1,115 ft²
$828K
401 S Norfolk St # 314
2 bd · 2 ba · 913 ft²
$670K
401 S Norfolk St # 315
2 bd · 2 ba · 913 ft²
$689K
401 S Norfolk St # 316
2 bd · 2 ba · 913 ft²
$740K
401 S Norfolk St # 317
2 bd · 2 ba · 913 ft²
$682K
401 S Norfolk St # 318
2 bd · 2 ba · 913 ft²
$680K
401 S Norfolk St # 319
2 bd · 2 ba · 913 ft²
$699K
401 S Norfolk St # 320
2 bd · 2 ba · 1,115 ft²
$805K
401 S Norfolk St # 321
1 bd · 1 ba · 729 ft²
$549K
401 S Norfolk St # 322
1 bd · 1 ba · 729 ft²
$543K

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

About 401 S Norfolk St

How many units are in 401 S Norfolk St, San Mateo, CA?

401 S Norfolk St, San Mateo, CA has 67 residential units across 3 floors, built in 2002, according to county assessor records.

What is a unit at 401 S Norfolk St, San Mateo, CA worth?

The median TopHap Estimate across the 67 units at 401 S Norfolk St, San Mateo, CA is $684,413. That works out to $746 per square foot. Units run from 729 to 1,115 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 401 S Norfolk St, San Mateo, CA expensive for San Mateo?

Units at 401 S Norfolk St, San Mateo, CA carry a median of $746 per square foot, 29% below the San Mateo median of $1045 per square foot.

How often do units sell at 401 S Norfolk St, San Mateo, CA?

3 units at 401 S Norfolk St, San Mateo, CA sold in the last 12 months, out of 149 recorded arms-length sales all time. That is a turnover rate of 4.5% of the building per year. The median sale over that period was $695K.

Have units at 401 S Norfolk St, San Mateo, CA appreciated?

Across 85 repeat sales of the same unit, 401 S Norfolk St, San Mateo, CA returned a median 3.7% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 6.4 years.

What floor plans does 401 S Norfolk St, San Mateo, CA have?

The most common plan at 401 S Norfolk St, San Mateo, CA is a 2-bedroom of 913 square feet, repeated 42 times, with a median estimate of $684,933. TopHap identifies 3 recurring plans in the building.

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