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25-Unit Apartment Building
For Sale
$8,495,000

280 W California Ave, Sunnyvale, CA 94086

Value-add multifamily asset offering a mix of one-, two-bedroom and studio units with private parking and on-site laundry.

Property Size15,162 SF
Lot Size0.69 Acres
Price / SF$560.28
Days on Market46

Property Features for 280 W California Ave

General Information

Standard status Active
Size 15,162 SF
Lot size 0.69 Acres
Property subtype Multifamily

Additional Details

Multifamily Units 25

Amenities

private parking
on-site laundry
Incredible Value-Add Asset in Sunnyvale's Iconic Heritage District
Unprecedented Rent Growth
Desirable Unit Mix
Convenient Community Amenities
Abundant Lifestyle Amenities

Building Details

Year Built 1974
Tenancy Multi
Listed By: Rob Johnston · License #License(s): CA: 01853816
Source: Marcusmillichap
Added: Jul 22 Changed: Sep 4 Last Checked: Aug 16 at 5:01AM

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 Rob Johnston

Investment Insights

Based on property information with market context.

El Portal Apartments is a 25-unit value-add apartment building originally constructed in 1974. The property offers a mix of studio, one-bedroom, and two-bedroom floor plans, along with private parking and on-site laundry for residents.

Located in Sunnyvale’s Heritage District, the building is described as walkable and positioned near restaurants, retail, entertainment, and the Sunnyvale Caltrain Station.

The asset is situated on a 30,155 square foot parcel with approximately 15,162 square feet of gross building area, supporting a straightforward multifamily configuration for income-focused ownership.

Key Highlights

  • 25‑unit multifamily property at 280 W California Ave in Sunnyvale, CA, built in 1974
  • On a 30,155 SF parcel with approximately 15,162 SF gross building area
  • Unit mix includes studio, 1‑bedroom, and 2‑bedroom floor plans

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
$320,482
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
3.77%
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%
$6,409,640 $6.4M
Cap Rate 7%
$4,578,314 $4.6M
Cap Rate 9%
$3,560,911 $3.6M
Market Conditions
NOI Build-Up for 15,162 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
$609.5K $40.20/SF
− Vacancy
−$26.8K −$1.77/SF
EGI
$582.7K $38.43/SF
− OpEx
−$262.2K −$17.29/SF
NOI
$320.5K $21.14/SF
Area
Sunnyvale, CA
Vacancy
4.40%
Lease Rate
$40.20 /SF/Yr
Expense Ratio
45.00%
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%
$6,409,640
Cap Rate 7%
$4,578,314
Cap Rate 9%
$3,560,911

Alternative Uses

Best Use
Apartment 5plus
$4.58M
$4.01M – $5.34M (±1% cap)
NOI $320,482 @ 7.0% cap · market cap 3.77%
Second Best
no second resolved use
Theoretical Best
Office A
$6.59M
$5.76M – $7.69M (±1% cap)
NOI $461,199 @ 7.0% cap · market cap 5.43%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Apartment buildings

Suggested Use

Top Pick (Bike/Boat/Book/etc) Store Pharmacy Furniture & Home Goods Barber Shop Grocery & Convenience Store Catering Service

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

Lease Details

25
Residential units
Multi-tenant
Tenancy

Location Intelligence

Trade Area within ½ mile

1,388
Businesses Nearby

Demographics for 94086, CA

50,175
Population
21,264
Households
2.4
Avg Household Size
34
Median Age
70%
College-Educated
94%
High-School Grad
4.4 sq mi
ZIP Area
11,403
Density / Sq Mi
$180,217
Median Household Income
$113,343
Median Earnings
$2,923
Median Rent
$1,784,200
Median Home Value

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?
Apartment building - Value-add multifamily asset offering a mix of one-, two-bedroom and studio units with private parking and on-site laundry.
Where is this apartment building located?
The property is located at 280 W California Ave Sunnyvale, CA.
What is the asking price?
The asking price for this property is $8,495,000.
What are key features of this property?
This property features: 25‑unit multifamily property at 280 W California Ave in Sunnyvale, CA, built in 1974; On a 30,155 SF parcel with approximately 15,162 SF gross building area; Unit mix includes studio, 1‑bedroom, and 2‑bedroom floor plans
More about this property
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