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Property profile & analytics
OFF-MARKET
Estimated value
$955,000
Office buildings
320 San Mateo Dr San Mateo, CA 94401-2799
Entity Owned
Absentee Owner
Free & Clear
Property ID
US10-2481396
Property profile
Verified
Property type
Office buildings
Use group
PROFESSIONAL BUILDING
Year built
1978
Total area
3,668 SF
Lot
0.21 ac (9,350 SF)
Zoning code
EA00E2
APN
032-194-120
UPID
US10-2481396
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
-
Horizon Dental Practice Dental Office Physician
-
Tsiang Kenneth T DDS Dental Office
-
Saunders Lawrence A DDS Dental Office
-
Bay Dental Associates Dental Office
-
Dr. Li-Chu Chen, DDS Dental Office
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
$1.17M
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$955k
Owner & transaction history
320 N San Mateo Drive LLC
320 N San Mateo Drive LLC
since 2025
7 recorded transactions
Zoning & alternative use
EA00E2 · 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
by Request
ML approach
by Request
CAP Approach
CAP Return
Estimation
6%
$1,265,000
6.5%
$1,170,000
7%
$1,085,000
Blend value · Realmo final
$955k
Range $860k – $1.05M · ±10%
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
$260 / 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
$22,826
Tax year 2024
Assessed value
$1,893,760
Assessed 2024
Previous assessed
$1,893,760
+0.0% YoY
Effective rate
1.21%
On assessed value
Assessed land
$1,199,383
Assessed improvement
$694,377
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
PROFESSIONAL BUILDING
Status
Off-Market
Year built
1978
Heating
NONE
Stories
2
Total area
3,668 SF
Lot
0.21 ac (9,350 SF)
Zoning code
EA00E2
APN
032-194-120
UPID
US10-2481396
Jurisdiction
SAN MATEO
Metro division
SAN FRANCISCO-SAN MATEO-REDWOOD CITY, CA METROPOLITAN DIVISION
Zoning & alternative use
EA00E2 · San Mateo, CA
Zoning EA00E2 · permitted uses
EA00E2 · 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.
Building & site characteristics
From public records
Year built
1978
Heating
NONE
Stories
2
Lot
0.21 ac
Current owner
From public records · entity-resolved
320 N San Mateo Drive LLC
Entity
Free & Clear · 0 yrs held
Mailing address
912 ARUBA LN, FOSTER CITY, CA 94404-3802
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2025
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
7 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Oct 17, 2025
$150,000
320 N San Mateo Drive LLC
Nishimoto Family Partnership
Grant Deed
—
Oct 3, 2019
—
Diercks Trust
Fred A Diercks
Quit Claim Deed
related
—
Sep 12, 2019
—
Fred A Diercks
Diercks Family Ptshp
Quit Claim Deed
related
—
Mar 1, 2017
—
Tsiang Family Trust
Tsiang,tze-foun
Quit Claim Deed
related
—
Oct 2, 2008
$850,000
Tze-foun Tsiang
Roth Trust
Grant Deed
—
Sep 25, 2008
—
Roth Trust
R & D Investments
Grant Deed
—
—
—
R Investments
—
Deed Of Trust
related
$127,000 · Peninsula Bank San Diego
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.
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