Entity Owned 
For Lease
1 / 5
$3,815,000
500 3Rd Ave, San Mateo, CA 94401
View Listing →
Property summary
AI-generated overview
The property is a mixed-use building containing approximately 198,572 RSF of office space distributed across five floors, with 13'8" clear ceiling heights. It includes large exterior roof decks and a covered exterior roof deck associated with the EBC, with office amenity areas located on the 4th and 5th floors. The building provides two levels of underground parking for tenant use. Office space is positioned about three short blocks from Caltrain, supporting commuter access. Within the same structure, there are 111 residential units that operate with a separate entrance, providing a distinct residential access point separated from office circulation.
Property profile
Verified
Property type
Retail space
Use group
RETAIL STORES (PERSONAL SERVICES)
Lot
0.13 ac (5,500 SF)
Zoning code
CH00C4
APN
034-185-120
UPID
US09-1229307
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
Restaurant
Location
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$3.84M
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$3.82M
Owner & transaction history
since 2022
Last sale
$4.2M
7 recorded transactions
Zoning & alternative use
CH00C4 · San Mateo, CA
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
Value estimation
Instant AI valuation built from comps, income signals, and proprietary benchmarks. A defensible range, not a single guess.
Unlock the complete Valuation workflow
Full NOI reconstruction, selected comps, alternative-use scenarios, data audit and PDF export.
Sensitivity value band
Source audit · 6 inputs
PDF export
Professional Plan · 30 reports
from $99/month
from $99/month
Summary
1
Valuation conclusion
Included free
Estimated market value
$3.82M
Value range
$3.43M – $4.20M
±10% around blend
Confidence
Property data
63
Market benchmarks
67
Comparable evidence
60
$3.43M
blend $3.82M
$4.20M
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
Lot area
0.13 ac
APN
034-185-120
Zoning
CH00C4
Assessed value
$4,273,800
Annual tax
$54,157
3
Income approach: direct capitalization
Partial preview
Not enough income data on file for a CAP-approach estimation.
4
Sales comparison
Partial preview
Too few qualifying comparables for a sales-approach estimation.
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$3.82M
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
Submarket 29 sales
$485
N/A
County 208 sales
$509
N/A
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography. Delta below average reads as headroom. Source: Realmo CRE sales derivatives (county records).
7
Data & methodology
Included free
Building area
Not available
Property tax
County record
Assessed value
County record
Zoning designation
County record
Operating expenses
Not available
Market rent
Not available
Not analyzed due to unavailable source data: actual rent roll, tenant leases, physical condition and capital
requirements are outside a desktop analysis.
Cost Approach excluded: replacement-cost inputs are not on file.
Automated valuation analysis, not a licensed appraisal. Figures are derived from public
records and proprietary models. Desktop analysis: no physical inspection, tenant leases or reported
property income. Verify with a licensed appraiser before transacting.
Cap rate
Cap rate calculated from real income and expense signals, benchmarked against sales of similar assets nearby.
Unlock the complete Cap Rate workflow
Full market tables, editable assumptions, comparable evidence, saved work and exports.
9-scenario matrix
Market rates by use type
PDF export
Professional Plan · 30 reports
from $99/month
from $99/month
Overview
No cap rate is computable for this property yet: no recorded sale, income signal or market-rate row for its use type.
Price sensitivity
The rate is the decision lever; valuation is the consequence.
Test a cap rate
Implied value$4.20M
Move the market yield to see immediate price impact.
Value / SF
N/A
Vs. selected
Base
Derivation
NOI ÷ cap
Arithmetic over the derived NOI * — not market scenario modeling.
NOI × cap matrix
Preview
Preview of 9 modeled outcomes.
NOI
5.00%7.00%9.00%
$265k
$5.29M
$3.78M
$2.94M
$294k
$5.88M
$4.20M
$3.27M
$323k
$6.47M
$4.62M
$3.59M
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$54,157
Tax year 2024
Assessed value
$4,273,800
Assessed 2024
Previous assessed
$4,273,800
+0.0% YoY
Effective rate
1.27%
On assessed value
Assessed land
$4,273,800
Applied tax rate
12.0000
Automated cap rate analysis. Based on public records, market benchmarks and proprietary
models. Verify with a licensed professional before transacting.
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Retail space
Use group
RETAIL STORES (PERSONAL SERVICES)
Status
For Lease
Heating
NONE
Lot
0.13 ac (5,500 SF)
Zoning code
CH00C4
APN
034-185-120
UPID
US09-1229307
Jurisdiction
SAN MATEO
Metro division
SAN FRANCISCO-SAN MATEO-REDWOOD CITY, CA METROPOLITAN DIVISION
Zoning & alternative use
CH00C4 · San Mateo, CAZoning CH00C4 · permitted uses
CH00C4 · San Mateo, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Building & site characteristics
From public records
Heating
NONE
Lot
0.13 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
County-recorded code
CH00C4
Jurisdiction
San Mateo, CA
Recorded code
CH00C4
Zoning Insight
What can be built and operated here — officially.
The district profile from the municipal source: what is on file for CH00C4 in San Mateo, CA.
What opens after registration
Zoning profile
3 official documentsVerified municipal sources with file download
Match provenanceAssignment basis, match tier and confidence
Private report access
See the official zoning profile for this address.
Registration is required before the official district profile is shown.
One complete report on every paid plan · 30 · 300 reports per month.
Ownership Intelligence
Find the owner behind the property.
Unlock the evidence behind ownership: portfolio, transactions, debt and signals that help you decide who to contact next.
What opens after registration
Ownership report
Owner identityResolved entity and name variants
Portfolio holdingsLinked properties and estimated value
Deal signalsSell-side activity worth following
Debt & historyRecorded loans and transaction history
Private report access
See the ownership record for this address.
Registration is required before any owner information is shown.
One complete report on every paid plan · 30 · 300 reports per month.
Owner of record and activity signals are derived from public records and modeled classifications.
They do not confirm beneficial ownership or intent to transact.
Try Rey
Ask anything about this address in plain English.
“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
Get access to Data & Analytics
Choose membership plan that suits your needs
Unlock Full Report
$9
one-time
Single Property Report
Full report includes
- Full Property Data
- Historical Records
- Value Estimation
- NOI Potential
- Cap Rate Calculation
- Ownership
- Location Insight
- Alternative use
- Local Zoning Insight
MOST POPULAR
Professional Plan
$99
/mo
30 property reports a month.
Cancel anytime.
Cancel anytime.
Your membership includes
- 30 reports a month
- Location Analytics
- Market Trends
- Full Property Data
- Historical Records
- Value Estimation
- NOI Potential
- Cap Rate Calculation
- Ownership
- Location Insight
- Alternative use
- Local Zoning Insight
Enterprise Plan
$299
/mo
300 property reports a month.
Cancel anytime.
Cancel anytime.
Your membership includes
- 300 reports a month
- Location Analytics
- Market Trends
- Full Property Data
- Historical Records
- Value Estimation
- NOI Potential
- Cap Rate Calculation
- Ownership
- Location Insight
- Alternative use
- Local Zoning Insight
Unlock Light Report
Free
Confirm your email
and get 1 Light Report
and get 1 Light Report
Light report includes
- Property Information
- Historical Records
- Value Estimation
- NOI Potential
- Cap Rate Potential
- Location Insight
- Alternative use
- Local Zoning Insight
Confirm your e-mail to get the report
