Union Square Office/Medical
For Sale
$1,298,000
490 Post Street Suite 1100, San Francisco, CA 94102
Office or medical space in prime Union Square location.
Property Size1,594 SF
Price / SF$814.30
Days on Market91
Property Features for 490 Post Street Suite 1100
General Information
Standard status
Active
Size
1,594 SF
Class
B
Property subtype
Office - Medical Office
Building Details
Building Size
1,594 SF
Year Built
1928
Year Renovated
2009
Listing Agency:
SVN | Capital West Partners
Listed By:
Catherine House · License #DRE01990180
Source:
Commercialcafe
Added: May 14
Changed: Aug 8
Last Checked: Aug 8 at 7:11AM
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 SVN | Capital West Partners
Investment Insights
Based on property information with market context.
Located in Union Square, this property offers approximately 1594 square feet of office space available for purchase. The space is suitable for use as either a general office or a medical office. It features operable, south-facing windows that provide ample natural light. The building is elevator served and ADA accessible.
Key Highlights
- Prime Union Square location
- ±1594 Sq. Ft. of office space suitable for office or medical use
- Operable south‑facing windows providing lots of natural light
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
$39,277
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
3.03%
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%
$785,540
$785.5K
Cap Rate 7%
$561,100
$561.1K
Cap Rate 9%
$436,411
$436.4K
Market Conditions
NOI Build-Up for 1,594 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
$70.2K $44.04/SF
− Vacancy
−$17.8K −$11.19/SF
EGI
$52.4K $32.85/SF
− OpEx
−$13.1K −$8.21/SF
NOI
$39.3K $24.64/SF
Area
San Francisco, CA
Vacancy
25.40%
Lease Rate
$44.04 /SF/Yr
Expense Ratio
25.00%
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%
$785,540
Cap Rate 7%
$561,100
Cap Rate 9%
$436,411
Alternative Uses
Best Use
Office B
$561.1K
$491.0K – $654.6K
NOI $39,277 @ 7.0% cap · market cap 3.03%
Second Best
Healthcare Medical
$432.8K
$378.7K – $505.0K
NOI $30,299 @ 7.0% cap · market cap 2.33%
Theoretical Best
Specialty Retail
$7.79M
$6.81M – $9.08M
NOI $545,022 @ 7.0% cap · market cap 41.99%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Location Intelligence
Trade Area within ½ mile
28,510
Businesses Nearby
Under-served
Demand for This Use
Explore this area
Business Placement
Demographics for 94102, CA
39,432
Population
23,153
Households
1.7
Avg Household Size
40
Median Age
42%
College-Educated
81%
High-School Grad
0.7 sq mi
ZIP Area
56,331
Density / Sq Mi
$64,781
Median Household Income
$55,873
Median Earnings
$1,517
Median Rent
$996,300
Median Home Value
Market
Vacancy Rate% for Office in San Francisco, CA
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Medical Office Space - Office or medical space in prime Union Square location.
Where is this medical office space located?
The property is located at 490 Post Street Suite 1100 San Francisco, CA.
What is the asking price?
The asking price for this property is $1,298,000.
What are key features of this property?
This property features: Prime Union Square location; ±1594 Sq. Ft. of office space suitable for office or medical use; Operable south‑facing windows providing lots of natural light
