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Mobile HomeResidential
Last sold for $16,000,000 on Jul 11, 2016

9800 BASE LINE RD

RANCHO CUCAMONGA, CA 91701
9.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1975
Year BuiltThe year the home was originally built, according to county records.
Built 197264 units960–2,040 ft²
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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.
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Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
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Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

Sales Performance

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Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
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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.

1 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.

Studio
1 unit
2 bed
43 units
3 bed
17 units
4 bed
3 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 · 1,440 ft²
12 units
2 bd · 2 ba · 1,152 ft²
5 units
2 bd · 2 ba · 1,344 ft²
4 units
3 bd · 2 ba · 1,440 ft²
4 units
2 bd · 2 ba · 1,248 ft²
2 units
3 bd · 2 ba · 1,344 ft²
2 units
2 bd · 2 ba · 1,392 ft²
2 units
3 bd · 2 ba · 1,488 ft²
2 units
One-off layouts
31 units

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.92%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.5%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.126.7 yrs
Median tax billThe middle annual property tax bill among the building's units.$115
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.

BuildingJul 11, 2016$16,000,000

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

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$102,750 (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.$9,470,382 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$8,286,584
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,183,798

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.24 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Mobile Home
StyleThe architectural style of the home, such as ranch or colonial.Mobile Home
CountySAN BERNARDINO
ConstructionThe main material the home's frame and walls are built from.Concrete
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

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

E
Alta Loma Elementary SchoolB+
Elementary · Grades KG–5 · 0.5 mi
H
Alta Loma High SchoolA-
High · Grades 9–12 · 1.2 mi
M
Alta Loma Junior High SchoolB-
Middle · Grades 6–8 · 1.7 mi

District: Chaffey Joint Union High School District

Neighborhood · ZIP 91701These 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.51
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.606

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.40,046
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,720 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$105,932
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$128,957
Average tempThe average temperature here across a full year.61°F
Annual precipHow much rain and melted snow falls here in a typical year.24 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

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.

9800 Base Line Rd
3 bd · 2.8 ba · 396,396 ft²
9800 Base Line Rd # 1
3 bd · 2 ba · 1,581 ft²
9800 Base Line Rd # 3
2 bd · 2 ba · 1,738 ft²
9800 Base Line Rd # 5
2 bd · 2 ba · 1,689 ft²
9800 Base Line Rd # 6
2 bd · 2 ba · 1,512 ft²
9800 Base Line Rd # 7
4 bd · 2 ba · 1,900 ft²
9800 Base Line Rd # 10
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 11
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 12
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 13
3 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 15
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 18
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 20
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 21
2 bd · 2 ba · 1,248 ft²
9800 Base Line Rd # 25
3 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 26
2 bd · 2 ba · 1,736 ft²
9800 Base Line Rd # 27
2 bd · 3 ba · 1,560 ft²
9800 Base Line Rd # 30
2 bd · 2 ba · 1,248 ft²
9800 Base Line Rd # 32
2 bd · 2 ba · 1,344 ft²
9800 Base Line Rd # 33
2 bd · 2 ba · 1,152 ft²
9800 Base Line Rd # 34
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 35
2 bd · 2 ba · 1,224 ft²
9800 Base Line Rd # 36
2 bd · 2 ba · 1,152 ft²
9800 Base Line Rd # 37
2 bd · 2 ba · 1,690 ft²
9800 Base Line Rd # 38
3 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 41
2 bd · 2 ba · 1,344 ft²
9800 Base Line Rd # 43
2 bd · 2 ba · 1,152 ft²
9800 Base Line Rd # 44
2 bd · 2 ba · 1,344 ft²
9800 Base Line Rd # 46
2 bd · 2 ba · 1,600 ft²
9800 Base Line Rd # 49
4 bd · 2 ba · 2,040 ft²
9800 Base Line Rd # 50
2 bd · 2 ba · 1,344 ft²
9800 Base Line Rd # 51
3 bd · 2 ba · 1,380 ft²
9800 Base Line Rd # 54
2 bd · 2 ba · 1,152 ft²
9800 Base Line Rd # 57
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 58
2 bd · 1 ba · 1,344 ft²
9800 Base Line Rd # 59
3 bd · 2 ba · 1,600 ft²
9800 Base Line Rd # 61
3 bd · 2 ba · 1,539 ft²
9800 Base Line Rd # 66
2 bd · 2 ba · 960 ft²
9800 Base Line Rd # 67
3 bd · 2 ba · 1,408 ft²
9800 Base Line Rd # 68
9800 Base Line Rd # 72
2 bd · 1.5 ba · 1,840 ft²
9800 Base Line Rd # 78
2 bd · 2 ba · 1,710 ft²
9800 Base Line Rd # 83
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 87
3 bd · 2 ba · 1,488 ft²
9800 Base Line Rd # 90
2 bd · 2 ba · 1,392 ft²
9800 Base Line Rd # 94
2 bd · 2 ba · 1,392 ft²
9800 Base Line Rd # 95
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 96
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 102
2 bd · 2 ba · 1,488 ft²
9800 Base Line Rd # 110
3 bd · 2 ba · 1,248 ft²
9800 Base Line Rd # 111
2 bd · 2 ba · 1,152 ft²
9800 Base Line Rd # 114
3 bd · 2 ba · 1,344 ft²
9800 Base Line Rd # 116
2 bd · 2 ba · 1,164 ft²
9800 Base Line Rd # 121
2 bd · 2 ba · 1,352 ft²
9800 Base Line Rd # 123
3 bd · 2 ba · 1,536 ft²
9800 Base Line Rd # 124
4 bd · 2 ba · 1,638 ft²
9800 Base Line Rd # 128
2 bd · 2 ba · 1,740 ft²
9800 Base Line Rd # 130
2 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 133
3 bd · 2 ba · 1,460 ft²
9800 Base Line Rd # 134
2 bd · 2 ba · 1,540 ft²
9800 Base Line Rd # 137
3 bd · 2 ba · 1,344 ft²
9800 Base Line Rd # 141
2 bd · 2 ba · 1,280 ft²
9800 Base Line Rd # 142
3 bd · 2 ba · 1,968 ft²
9800 Base Line Rd # 143
3 bd · 2 ba · 1,440 ft²
9800 Base Line Rd # 147
3 bd · 2 ba · 1,488 ft²

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

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