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CondominiumResidential

221 N Rengstorff Ave

MOUNTAIN VIEW, CA 94043
3,300 ft²
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
Built 197912 units1,341–1,518 ft²
$13M
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.
$1.1M
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$738
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-30.2%vs the Mountain View ZIP median sale $/ft² ($1057)

Sales Performance

$1.4M
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
1
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
8.3%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+5.9%per yeartypical hold 6.6 yrsfrom 27 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
19881992199520012004201220162026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
19881992199520012004201220162026

39 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.
$892K$1.1M$1.2M$1.4M1,341 ft²1,376 ft²1,412 ft²1,447 ft²1,483 ft²1,518 ft²
2 bd
2 bed
12 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 · 1.5 ba · 1,518 ft²
5 units
2 bd · 1.5 ba · 1,341 ft²
4 units
2 bd · 2.5 ba · 1,518 ft²
2 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.

$892K–$892K
1 unit
$973K–$1M
3 units
$1.1M–$1.1M
1 unit
$1.1M–$1.1M
4 units
$1.2M–$1.2M
2 units
$1.4M–$1.4M
1 unit

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.100%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.33%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.13.7 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.64%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$1,166,316
Median tax billThe middle annual property tax bill among the building's units.$10,072
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 5Sep 10, 2026$1,350,000Unit 20Dec 29, 2020$1,365,000Unit 1Aug 5, 2019$1,350,000Unit 2Apr 10, 2019$1,240,000Unit 20Aug 31, 2018$1,338,000Unit 6Apr 23, 2018$1,550,000Unit 5Apr 11, 2016$1,000,000Unit 6Apr 17, 2014$790,000Unit 19Mar 19, 2013$700,000Unit 24Sep 27, 2012$645,000

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

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.35
25
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
29
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
23
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
40
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
60
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.7 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.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.Custom Design
CountySANTA CLARA
Lot (acres)The size of the land the home sits on, from county records.0.08
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
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.

E
Theuerkauf Elementary SchoolC+
Elementary · Grades KG–5 · 0.6 mi
M
Crittenden Middle SchoolA
Middle · Grades 6–8 · 0.7 mi
H
Los Altos High SchoolA+
High · Grades 9–12 · 1.5 mi

District: Mountain View Whisman Elementary School District

Neighborhood · ZIP 94043These 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.142
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.425

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.28,863
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,282 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$165,325
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$209,804
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.15 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

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.

221 N Rengstorff Ave
2 bd · 1.5 ba · 1,518 ft²
$1.4M
221 N Rengstorff Ave
2 bd · 1.5 ba · 1,341 ft²
$1M
221 N Rengstorff Ave # 3
2 bd · 1.5 ba · 1,341 ft²
$892K
221 N Rengstorff Ave # 4
2 bd · 1.5 ba · 1,518 ft²
$1.1M
221 N Rengstorff Ave # 5
2 bd · 2.5 ba · 1,518 ft²
$1.1M
221 N Rengstorff Ave # 6
2 bd · 2 ba · 1,518 ft²
$1.2M
221 N Rengstorff Ave # 19
2 bd · 1.5 ba · 1,518 ft²
$1.1M
221 N Rengstorff Ave # 20
2 bd · 2.5 ba · 1,518 ft²
$1.2M
221 N Rengstorff Ave
2 bd · 1.5 ba · 1,518 ft²
$1.1M
221 N Rengstorff Ave
2 bd · 1.5 ba · 1,341 ft²
$973K
221 N Rengstorff Ave # 23
2 bd · 1.5 ba · 1,341 ft²
$982K
221 N Rengstorff Ave # 24
2 bd · 1.5 ba · 1,518 ft²
$1.1M

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

About 221 N Rengstorff Ave

How many units are in 221 N Rengstorff Ave, Mountain View, CA?

221 N Rengstorff Ave, Mountain View, CA has 12 residential units across built in 1979, according to county assessor records.

What is a unit at 221 N Rengstorff Ave, Mountain View, CA worth?

The median TopHap Estimate across the 12 units at 221 N Rengstorff Ave, Mountain View, CA is $1,095,238. That works out to $738 per square foot. Units run from 1,341 to 1,518 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 221 N Rengstorff Ave, Mountain View, CA expensive for Mountain View?

Units at 221 N Rengstorff Ave, Mountain View, CA carry a median of $738 per square foot, 30% below the Mountain View median of $1057 per square foot.

How often do units sell at 221 N Rengstorff Ave, Mountain View, CA?

1 units at 221 N Rengstorff Ave, Mountain View, CA sold in the last 12 months, out of 39 recorded arms-length sales all time. That is a turnover rate of 8.3% of the building per year. The median sale over that period was $1.4M.

Have units at 221 N Rengstorff Ave, Mountain View, CA appreciated?

Across 27 repeat sales of the same unit, 221 N Rengstorff Ave, Mountain View, CA returned a median 5.9% 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 6.6 years.

What floor plans does 221 N Rengstorff Ave, Mountain View, CA have?

The most common plan at 221 N Rengstorff Ave, Mountain View, CA is a 2-bedroom of 1,518 square feet, repeated 5 times, with a median estimate of $1,127,921. TopHap identifies 3 recurring plans in the building.

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