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CondominiumResidential

218 Tilton Ave

SAN MATEO, CA 94401
696 ft²
Lot SizeThe size of the land the home sits on, from county records.
1978
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 19783 floors18 units690–1,350 ft²
$11M
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.
$709K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$624
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-33.9%vs the San Mateo ZIP median sale $/ft² ($944)

Sales Performance

—
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
0
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
0.0%
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.
+6.5%per yeartypical hold 4.8 yrsfrom 22 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
19881992200020032006201120172025
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
19881992200020032006201120172025

37 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.
$475K$597K$720K$843K690 ft²822 ft²954 ft²1,086 ft²1,218 ft²1,350 ft²
1 bd2 bd
1 bed
2 units
2 bed
16 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.
1 bd · 1 ba · 690 ft²
2 units
2 bd · 1 ba · 910 ft²
2 units
2 bd · 1 ba · 950 ft²
2 units
2 bd · 2 ba · 950 ft²
2 units
2 bd · 2 ba · 970 ft²
2 units
2 bd · 2 ba · 1,150 ft²
2 units
2 bd · 2 ba · 1,160 ft²
2 units
2 bd · 2 ba · 1,180 ft²
2 units
One-off layouts
2 units

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.

$475K–$475K
1 unit
$522K–$550K
3 units
$567K–$572K
2 units
$624K–$624K
1 unit
$663K–$663K
1 unit
$709K–$719K
3 units
$754K–$797K
4 units
$822K–$843K
2 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
$722/ft²
Floor 2
$600/ft²
Floor 3
$609/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.39%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.22.5 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.0%
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.56%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$691,508
Median tax billThe middle annual property tax bill among the building's units.$6,540
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0

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

Unit 101Jul 11, 2025$789,000Unit 101Mar 27, 2025$607,000Unit 107Jul 23, 2024$750,000Unit 201Nov 13, 2018$820,000Unit 106Sep 18, 2018$605,000Unit 108Apr 24, 2017$626,000Unit 104Feb 15, 2017$670,000Unit 201Oct 16, 2015$676,000Unit 106Jun 10, 2015$435,000Unit 205Jun 5, 2014$564,000

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.9 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.11%
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.0.2 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
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1993
Lot (acres)The size of the land the home sits on, from county records.0.02
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
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.

H
San Mateo High SchoolA-
High · Grades 9–12 · 0.6 mi
M
Abbott Middle SchoolC
Middle · Grades 6–8 · 2.8 mi
E
Laurel Elementary SchoolD
Elementary · Grades KG–5 · 2.8 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.

218 Tilton Ave # 101
2 bd · 2 ba · 950 ft²
$822K
218 Tilton Ave # 102
2 bd · 1 ba · 910 ft²
$527K
218 Tilton Ave # 103
2 bd · 2 ba · 1,160 ft²
$754K
218 Tilton Ave # 104
2 bd · 2 ba · 1,150 ft²
$797K
218 Tilton Ave # 105
2 bd · 2 ba · 1,180 ft²
$709K
218 Tilton Ave # 106
1 bd · 1 ba · 690 ft²
$572K
218 Tilton Ave # 107
2 bd · 2 ba · 970 ft²
$784K
218 Tilton Ave # 108
2 bd · 1 ba · 950 ft²
$717K
218 Tilton Ave # 201
2 bd · 2 ba · 950 ft²
218 Tilton Ave # 202
2 bd · 1 ba · 910 ft²
$550K
218 Tilton Ave # 203
2 bd · 2 ba · 1,160 ft²
$624K
218 Tilton Ave # 204
2 bd · 2 ba · 1,150 ft²
$663K
218 Tilton Ave # 205
2 bd · 2 ba · 1,180 ft²
$756K
218 Tilton Ave # 206
1 bd · 1 ba · 690 ft²
$522K
218 Tilton Ave # 207
2 bd · 2 ba · 970 ft²
$567K
218 Tilton Ave # 208
2 bd · 1 ba · 950 ft²
$475K
218 Tilton Ave # 301
2 bd · 2 ba · 1,350 ft²
$843K
218 Tilton Ave # 302
2 bd · 2 ba · 1,210 ft²
$719K

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

About 218 Tilton Ave

How many units are in 218 Tilton Ave, San Mateo, CA?

218 Tilton Ave, San Mateo, CA has 18 residential units across 3 floors, built in 1978, according to county assessor records.

What is a unit at 218 Tilton Ave, San Mateo, CA worth?

The median TopHap Estimate across the 18 units at 218 Tilton Ave, San Mateo, CA is $708,770. That works out to $624 per square foot. Units run from 690 to 1,350 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 218 Tilton Ave, San Mateo, CA expensive for San Mateo?

Units at 218 Tilton Ave, San Mateo, CA carry a median of $624 per square foot, 34% below the San Mateo median of $944 per square foot.

How often do units sell at 218 Tilton Ave, San Mateo, CA?

0 units at 218 Tilton Ave, San Mateo, CA sold in the last 12 months, out of 37 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.

Have units at 218 Tilton Ave, San Mateo, CA appreciated?

Across 22 repeat sales of the same unit, 218 Tilton Ave, San Mateo, CA returned a median 6.5% 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 4.8 years.

What floor plans does 218 Tilton Ave, San Mateo, CA have?

The most common plan at 218 Tilton Ave, San Mateo, CA is a 1-bedroom of 690 square feet, repeated 2 times, with a median estimate of $546,886. TopHap identifies 8 recurring plans in the building.

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