Office buildings
Entity Owned
9-yr Hold
Absentee Owner
~
Est. High Equity
Entity Owned 
For Lease
1 / 3
Contact for pricing
510 Grand Ave, Glendora, CA 91741-4207
View Listing →
Property summary
AI-generated overview
This exceptional commercial property, located at 510 S. Grand Ave, Glendora, CA 91741, offers 24,462 square feet of versatile office space. Classified as a Class B building, it sits on a sizable 1.86-acre lot and is zoned GMU. The property's APN is 8639-028-013. Currently configured for multiple tenants, this building is ideal for a variety of uses, including traditional office and medical office spaces. One suite of 1,980 square feet is currently available. The building's strategic location in Glendora provides excellent access to major transportation routes and local amenities. The property presents a compelling opportunity for investors and businesses seeking a well-established presence in a thriving California market. Its substantial size and flexible layout offer significant potential for growth and adaptation to evolving business needs. This is a rare opportunity to acquire a substantial office building in a desirable location. Further details regarding the available suite and building specifications are available upon request. The property is situated at 34.129883122605825 latitude and -117.87257235921568 longitude.
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1980
Construction
STEEL FRAME
Total area
24,781 SF
Lot
1.85 ac (80,634 SF)
Zoning code
GDC_RT66SP
APN
8639-028-013
UPID
US09-8383419
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
-
Physician
-
Pharmacy
-
Physician
-
Physician Medical Clinic
-
Physician
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$3.49M
Blend (final)
Blend
$5.23M
Owner & transaction history
since 2016
4 recorded transactions
Zoning & alternative use
GDC_RT66SP · Glendora, CA
Top alternative use upside
Retail stores
$8.5M
+19.9%
Commercial (general)
$7.7M
+7.4%
Warehouse, storage
$7.3M
+2.1%
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.
17% off on annual
Unlock the complete Valuation workflow
Full NOI reconstruction, selected comps, alternative-use scenarios, data audit and PDF export.
Full NOI build-up · 6 steps
All 5 comparables with addresses
4 alternative uses screened
Sensitivity value band
Source audit · 10 inputs
PDF export
Analytics Standard · 5 reports
from $99/month
from $99/month
Summary
1
Valuation conclusion
Included free
Estimated market value
$5.23M
Value range
$4.70M – $5.75M
±10% around blend
Estimated value / SF
$211 / SF
Confidence
High
5 county-verified comps
Property data
88
Market benchmarks
67
Comparable evidence
50
Income certainty
100
$4.70M
blend $5.23M
$5.75M
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
GBA
24,781 SF
Lot area
1.85 ac
Year built
1980
Stories
1
APN
8639-028-013
Assessed value
$5,973,599
Annual tax
$76,962
3
Income approach: direct capitalization
Partial preview
Estimated Stabilized NOI, derived from market rent, vacancy and expense benchmarks. Actual property income not reported.
Estimated market rent / SF
Potential gross income
Vacancy allowance
Effective gross income
Benchmark operating expenses
Stabilized NOI
Property tax
$76,962
Selected cap rate
4
Sales comparison
Partial preview
Sales approach indication
$8.15M
Weighted, 5 comps · high confidence
Evidence
5 found · 5 selected
County-verified recorded sales
Comparable
Sale dateSale price$ / SF
7.9 mi away · 31,476 SF
15.9 mi away · 22,394 SF
16.2 mi away · 18,517 SF
24.4 mi away · 20,284 SF
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$5.23M
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
Submarket 22 sales
$288
-27%
County 2758 sales
$449
-53%
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography; the diamond marks the subject at $211/SF. Delta below average reads as headroom. Source: Realmo CRE sales derivatives (county records).
7
Alternative use screening
Partial preview
Top alternative use
Retail Stores
Gross theoretical uplift
+20%
vs current-use indication
Commercial (general)
Warehouse, Storage
Office Building · current use
Values shown before conversion costs, entitlement costs, capital expenditures and stabilization risk.
8
Data & methodology
Included free
Building area
County record
Property tax
County record
Assessed value
County record
Zoning designation
Not available
Operating expenses
Modeled
Market rent
Market benchmark
Actual rent roll
Not available
Tenant leases
Not available
Physical condition
Not inspected
Conversion costs
Not available
Not analyzed due to unavailable source data: tenant leases, physical condition and capital
requirements were not available for this desktop analysis. Cost Approach excluded due to
availability of income evidence.
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.
17% off on annual
Unlock the complete Cap Rate workflow
Full market tables, editable assumptions, comparable evidence, saved work and exports.
9-scenario matrix
Comparable evidence · 5 sales
NOI build-up · 9 steps
Market rates by use type
PDF export
Analytics Standard · 5 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$311k
Move the market yield to see immediate price impact.
Value / SF
$13
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%
$20k
$392k
$280k
$218k
$22k
$435k
$311k
$242k
$24k
$479k
$342k
$266k
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Comparable evidence
Partial preview
Recorded sales nearby
5 found
High confidence · county-verified
Closest comparable
$725k
7.7 mi · Dec 2025 · $28/SF
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$76,962
Tax year 2024
Assessed value
$5,973,599
Assessed 2024
Previous assessed
$5,973,599
+0.0% YoY
Effective rate
1.29%
On assessed value
Assessed land
$3,584,160
Assessed improvement
$2,389,439
Applied tax rate
4.0000
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
Office buildings
Use group
OFFICE BUILDING
Status
For Lease
Year built
1980
Construction
STEEL FRAME
Heating
NONE
Cooling
OTHER
Stories
1
Total area
24,781 SF
Lot
1.85 ac (80,634 SF)
Zoning code
GDC_RT66SP
APN
8639-028-013
UPID
US09-8383419
Jurisdiction
LOS ANGELES
Metro division
LOS ANGELES-LONG BEACH-GLENDALE, CA METROPOLITAN DIVISION
Zoning & alternative use
GDC_RT66SP · Glendora, CAZoning GDC_RT66SP · permitted uses
GDC_RT66SP · Glendora, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Alternative use value scenarios
Repositioning upside vs current use
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Building & site characteristics
From public records
Year built
1980
Construction
STEEL FRAME
Heating
NONE
Cooling
Yes
Stories
1
Lot
1.85 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
County-recorded code
GDC_RT66SP
Jurisdiction
Glendora, CA
Recorded code
GDC_RT66SP
Zoning Insight
What can be built and operated here — officially.
The district profile from the municipal source: what is on file for GDC_RT66SP in Glendora, CA.
What opens after registration
Zoning profile
Official documentVerified 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 · 5 · 30 · 100 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 · 5 · 30 · 100 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?”
Full reports are paid
Unlock the full Property Analytics report
Pick a plan to open full owner contacts, all 4 valuations with methodology, the refine flow, comparable adjustments, the foot-traffic deep dive and PDF / CSV export. Cancel anytime.
