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Detached Duplex with Two Homes
For Sale
$1,998,888

7858 Whitmore, Rosemead, CA 91770

Two detached homes on one lot, including a single-story 4/2 and a two-story 4/4 residence.

Property Size4,108 SF
Days on Market58

Property Features for 7858 Whitmore

General Information

Standard status Active
Size 4,108 SF
Property subtype Duplex

Building Details

Building Size 4,108 SF
Year Built 1979
Listing Agency: Imax Realty & Mortgage Inc.
Listed By: Helen Wong · License #01336557
Source: Archetyperealty
Added: Jul 24 Changed: Sep 12 Last Checked: Sep 19 at 12:46PM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Imax Realty & Mortgage Inc.

Investment Insights

Based on property information with market context.

This detached duplex features two separate homes on an expansive lot in Rosemead, CA 91770. The front home is a single-story residence with approximately 1,752 square feet, originally built in 1947 and remodeled for an effective year 1979. It offers 4 bedrooms and 2 bathrooms, with a combined living and dining area, a kitchen positioned adjacent to the main living spaces, and a primary bedroom suite at the front corner. A hallway bathroom serves two additional bedrooms, followed by a flexible office area that may also function as the 4th bedroom. An indoor laundry area is located near the rear entrance, and the home includes an attached two-car garage.

The back home is a two-story residence with approximately 2,356 square feet, built in 1990, offering 4 bedrooms and 4 bathrooms. The layout begins with a large enclosed den near the entry, followed by an expansive living room and a separate enclosed dining room. A large, open kitchen connects to the family room area, supporting everyday living and gatherings.

Key Highlights

  • Duplex property with two detached homes on a 9,350 Sq Ft lot
  • Front home: approx. 1,752 Sq Ft, single‑story 4 bed/2 bath, built 1947 and remodeled with effective year 1979
  • Front home features a combined living/dining area with natural light, plus an attached 2‑car garage

Financial Insights

Estimated NOI and Cap Rate

NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$71,740
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
3.59%
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,434,800 $1.4M
Cap Rate 7%
$1,024,857 $1.0M
Cap Rate 9%
$797,111 $797.1K
Market Conditions
NOI Build-Up for 4,108 SF Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent. EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs. OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements. NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$110.9K $27.00/SF
− Vacancy
−$8.4K −$2.05/SF
EGI
$102.5K $24.95/SF
− OpEx
−$30.7K −$7.48/SF
NOI
$71.7K $17.46/SF
Area
Los Angeles County, CA
Vacancy
7.60%
Lease Rate
$27.00 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,434,800
Cap Rate 7%
$1,024,857
Cap Rate 9%
$797,111

Alternative Uses

Best Use
Multifamily LT 5
$1.02M
$896.8K – $1.20M (±1% cap)
NOI $71,740 @ 7.0% cap · market cap 3.59%
Second Best
Apartment 5plus
$944.3K
$826.3K – $1.10M (±1% cap)
NOI $66,101 @ 7.0% cap · market cap 3.31%
Theoretical Best
Office A
$2.20M
$1.92M – $2.57M (±1% cap)
NOI $153,959 @ 7.0% cap · market cap 7.70%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick Real Estate Agency Law Firm Parking Lot & Garage Gym & Fitness Center Bar & Pub (Bike/Boat/Book/etc) Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Location Intelligence

Trade Area within ½ mile

985
Businesses Nearby

Demographics for 91770, CA

59,360
Population
17,704
Households
3.4
Avg Household Size
43
Median Age
23%
College-Educated
68%
High-School Grad
6.5 sq mi
ZIP Area
9,132
Density / Sq Mi
$73,757
Median Household Income
$35,286
Median Earnings
$1,740
Median Rent
$712,700
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Multifamily in West region

7% 2022
7.8% 2023
8.6% 2024
8.6% 2025
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Frequently Asked Questions

What type of property is this?
Duplex - Two detached homes on one lot, including a single-story 4/2 and a two-story 4/4 residence.
Where is this duplex located?
The property is located at 7858 Whitmore Rosemead, CA.
What is the asking price?
The asking price for this property is $1,998,888.
What are key features of this property?
This property features: Duplex property with two detached homes on a 9,350 Sq Ft lot; Front home: approx. 1,752 Sq Ft, single‑story 4 bed/2 bath, built 1947 and remodeled with effective year 1979; Front home features a combined living/dining area with natural light, plus an attached 2‑car garage
More about this property
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