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Property profile & analytics
OFF-MARKET
Estimated value
$2,055,000
Office buildings
763 Polhemus Rd San Mateo, CA 94402-4064
Entity Owned
4-yr Hold
~
Est. High Equity
Property ID
US09-4479963
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING (MULTI-STORY)
Year built
1986
Total area
3,500 SF
Lot
0.5 ac (21,619 SF)
Zoning code
C10001
APN
041-253-160
UPID
US09-4479963
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
Myron's West Dental Arts Dental Office
-
Rebecca Fung, LAC Alternative Medicine Practice Acupuncture
-
SEA Construction Construction Company
-
Peninsula Siding Company Construction Company General Contractor
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$2.14M
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$2.06M
Owner & transaction history
Sea Construction INC · 4 yrs held
Sea Construction INC
since 2021
Last sale
$2.0M
5 recorded transactions
Zoning & alternative use
C10001 · San Mateo, CA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Cap rate
Implied · in-place · derived from last sale + estimated NOI
Implied Cap rate
#1
Implied · in-place · NOI ÷ last sale
In-place · derived from last sale + estimated NOI
Cap rate, NOI & submarket benchmark
Implied cap rate vs San Mateo submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs San Mateo submarket · NOI estimate · typical band, median & reading
Refine your cap rate
8-question underwriting flow
1.
Property current status — Going-In vs Stabilized
2.
Price for denominator — asking / offer / market
3.
Leasing status & lease structure (NNN / Gross)
4.
Tenant risk profile & vacancy assumption
5.
Upload T12 / rent roll / OM (optional)
Refine in 60 seconds, get exact suggested price
T12 upload · Submarket benchmarks · Sensitivity grid
Suggested price · 3 cap rate anchors
Income approach @ 5% / 7% / 9% — aggressive / typical / conservative
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · Implied $/SF per anchor · Sensitivity grid
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · implied $/SF · sensitivity
Value
AI, CAP & Alternative Use estimations · Realmo proprietary blendValue Estimations
Based on Realmo’s proprietary methodology
AI Approach
Method
Estimation
Statistic approach
$2,085,000
ML approach
$2,135,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
OFFICE BUILDING
$2,280,000
Current use
NEIGHBORHOOD: SHOPPING CENTER
$1,890,000
Change: -17% · Conversion: Difficult
Blend value · Realmo final
$2.06M
Range $1.85M – $2.26M · ±10% · vs last sale $2.00M (Oct 29 2021)
Last sale anchor
$2.00M
Oct 29 2021
Realmo estimate · informational only.
These numbers are calculated by our models from public records and may not reflect actual market value.
Not an appraisal.
Verify with a licensed appraiser before transacting. Realmo accepts no liability for divergence from real-world outcomes.
View the full estimation — every method, every assumption
Confidence drivers & risk notes · Custom comparable set · Free for first 3 / day
Full estimation methodology
Every method · every assumption · confidence drivers
Price per SF
Sale + rent benchmarks
Subject property
$587 / SF
Submarket sale & rent benchmarks
Median sale $/SF · Asking & closed rent · Submarket vacancy
Submarket sale & rent benchmarks
Median sale $/SF · asking & closed rent · submarket vacancy
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$24,401
Tax year 2024
Assessed value
$2,079,642
Assessed 2024
Previous assessed
$2,079,642
+0.0% YoY
Effective rate
1.17%
On assessed value
Assessed land
$1,216,110
Assessed improvement
$863,532
Applied tax rate
12.0000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
Similar Nearby for Lease
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
Recent comparable sales
Sale price & $/SF · sale date & distance · adjustments
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Office buildings
Use group
OFFICE BUILDING (MULTI-STORY)
Status
Off-Market
Year built
1986
Heating
NONE
Stories
2
Total area
3,500 SF
Lot
0.5 ac (21,619 SF)
Zoning code
C10001
APN
041-253-160
UPID
US09-4479963
Jurisdiction
SAN MATEO
Metro division
SAN FRANCISCO-SAN MATEO-REDWOOD CITY, CA METROPOLITAN DIVISION
Zoning & alternative use
C10001 · San Mateo, CA
Zoning C10001 · permitted uses
C10001 · San Mateo, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
San Mateo. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$2.3M
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$1.9M
OFFICE BUILDING Current
NEIGHBORHOOD: SHOPPING CENTER
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Alternative use deep dive
Conversion cost · permit path · stabilized NOI per option
Building & site characteristics
From public records
Year built
1986
Heating
NONE
Stories
2
Lot
0.5 ac
Current owner
From public records · entity-resolved
Sea Construction INC
Entity
Mailing address
763 S POLHEMUS RD STE #1, SAN MATEO, CA 94402-4066
Mailing matches property
Yes
Owner-occupied
Yes
Ownership since
2021
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
5 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jul 25, 2022
—
Sea Construction INC
—
Deed
related
$1,582,127 · Trans Pacific National Bank
Oct 29, 2021
$1,999,000
Sea Construction INC
Axel J Altermann
Grant Deed
$1,598,400 · Altermann Qtio Trust
Aug 3, 2021
—
Axel J Altermann
Axel J Altermann
Intrafamily Transfer
related
—
Apr 28, 1994
—
Altermann Trust
Altermann,axel J
Quit Claim Deed
related
—
Apr 21, 1994
—
Axel J Alterman
Alterman,axel &
Quit Claim Deed
related
—
Coming soon
Costs & Benchmarks
Operating expenses, capex projections, utility benchmarks, and submarket comparables — all in one view.
Coming soon
Risks
Flood, climate, environmental, title, and tenant-concentration risk — surfaced with mitigations and source citations.
Try Rey
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