Entity Owned 
For Lease
$33 SF/Yr
1670 Riviera Ave,Unit 200, Walnut Creek, CA 94596
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Property summary
AI-generated overview
1670 Riviera Avenue is a three-story office building with approximately 12,000 square feet of total area, including about 10,000 square feet of office space and a 2,000 square foot penthouse residence. The building has efficient floor plates and is equipped with a sprinkler system. It is served by on-site surface parking configured at approximately 3 spaces per 1,000 square feet, with additional parking available on the surrounding streets. The property also provides an estimated 8,540 rentable square feet that can be delivered for an owner/user use, and it is located with access to public transportation, including BART.
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1991
Total area
11,697 SF
Lot
0.24 ac (10,530 SF)
Zoning code
RM2
APN
174-140-017-8
UPID
US09-0327924
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
-
Law Firm
-
Logistics Company
-
Physician
-
Law Firm
-
Physician
Location
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
$3.47M
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$2.60M
Owner & transaction history
since 2025
7 recorded transactions
Zoning & alternative use
RM2 · Walnut Creek, 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.
Full NOI build-up · 6 steps
All 3 comparables with addresses
2 alternative uses screened
Sensitivity value band
Source audit · 6 inputs
PDF export
Professional Plan · 30 reports
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Summary
1
Valuation conclusion
Included free
Estimated market value
$2.60M
Value range
$2.34M – $2.85M
±10% around blend
Estimated value / SF
$222 / SF
Confidence
Low
3 county-verified comps
Property data
100
Market benchmarks
67
Comparable evidence
30
Income certainty
100
$2.34M
blend $2.60M
$2.85M
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
GBA
11,697 SF
Lot area
0.24 ac
Year built
1991
Stories
1
APN
174-140-017-8
Zoning
RM2
Assessed value
$3,168,000
Annual tax
$38,252
3
Income approach: direct capitalization
Partial preview
Income approach indication
$3.47M
Direct capitalization · @ 6.5% CAP return
@ 6% CAP return
$3.76M
@ 6.5% CAP return
$3.47M
@ 7% CAP return
$3.23M
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
$38,252
Selected cap rate
4
Sales comparison
Partial preview
Sales approach indication
$4.42M
Weighted, 3 comps · low confidence
Evidence
3 found · 3 selected
County-verified recorded sales
Comparable
Sale dateSale price$ / SF
20.1 mi away · 9,926 SF
22.2 mi away · 12,328 SF
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$2.60M
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
Submarket 33 sales
$433
-49%
County 217 sales
$344
-35%
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography; the diamond marks the subject at $222/SF. Delta below average reads as headroom. Source: Realmo CRE sales derivatives (county records).
7
Data & methodology
Included free
Building area
County record
Property tax
County record
Assessed value
County record
Zoning designation
County record
Operating expenses
Modeled
Market rent
Market benchmark
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: income and sales evidence cover the value conclusion.
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
Comparable evidence · 3 sales
NOI build-up · 9 steps
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$3.02M
Move the market yield to see immediate price impact.
Value / SF
$258
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%
$190k
$3.81M
$2.72M
$2.11M
$211k
$4.23M
$3.02M
$2.35M
$233k
$4.65M
$3.32M
$2.58M
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Comparable evidence
Partial preview
Recorded sales nearby
3 found
Low confidence · county-verified
Closest comparable
$4.00M
14.3 mi · Mar 2026 · $357/SF
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$38,252
Tax year 2024
Assessed value
$3,168,000
Assessed 2024
Previous assessed
$3,168,000
+0.0% YoY
Effective rate
1.21%
On assessed value
Assessed land
$557,200
Assessed improvement
$2,610,800
Applied tax rate
9.0000
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
1991
Heating
NONE
Stories
1
Units
5
Rooms
5
Bathrooms
1
Total area
11,697 SF
Lot
0.24 ac (10,530 SF)
Zoning code
RM2
APN
174-140-017-8
UPID
US09-0327924
Jurisdiction
CONTRA COSTA
Metro division
OAKLAND-FREMONT-HAYWARD, CA METROPOLITAN DIVISION
Zoning & alternative use
RM2 · Walnut Creek, CAZoning RM2 · permitted uses
RM2 · Walnut Creek, 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
1991
Heating
NONE
Stories
1
Units
5
Rooms
5
Bathrooms
1
Lot
0.24 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
County-recorded code
RM2
Jurisdiction
Walnut Creek, CA
Recorded code
RM2
Zoning Insight
What can be built and operated here — officially.
The district profile from the municipal source: what is on file for RM2 in Walnut Creek, 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.
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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.
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Ask anything about this address in plain English.
“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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