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117 Carmel Ave

St Jeromes · El Cerrito

117 Carmel Ave

Style

Single Family Residence

Zoning

RS-5

Year built

1939

Existing

2 bd · 1 ba

Interior

935 sf

Lot size

4,178 sf

$799,000

For Sale

Development Scenarios

Here's how you can use existing housing laws to add more housing units to this property. For illustrative purposes only, as actual site conditions should be verified in person.

Single-Family Homes and ADUs on Separate Lots

Add 1-2 potential units
$582K-$887K estimated cost
$1.2M-$1.8M future value add

Applicable but Space Constrained: ADU

Demolishing the existing structure may create a viable configuration

Density level

You can demo a structure as long as its vacant / condemned / owner-occupied, has been off the rental market for 5 years, and has no Ellis act evictions in the past 15 years.

Generating the lot configuration for this scenario and density...

Financials

These estimates model the potential development economics for this scenario using local construction costs and comparable sale prices. They're provided for illustrative purposes only and aren't financial advice.

Selected ScenarioSB9
Estimated Project Cost
$1,405,223
SB9 scenario · 1 new unit · 1,341 new sf
Build Cost / SF
$
SB9 build cost$582,253
41% of project cost
Property acquisition$822,970
59% of project cost
Estimated Project Value (2 Year)
$2,028,706
$2,090,191 1-year project value ·
44.4% total ROI
$623,483 potential ROI
Added scenario value$1,229,706
61% of completed value
Current property value$799,000
39% of completed value
Acquisition59%
Soft Costs8%
Hard Costs34%
Value Projections
Today list price$799,000
24-month added value$1,229,706
24-month project value$2,028,706
Potential ROI$623,483
Assumptions
Current sale / sf$855
Average sale / sf$1,011
Annual growth-4.8%
Comp bedrooms2
Comp radius5 miles
Price / sf sourceAverage sold comps
Added sqft1,341 sf
Cost Breakdown

Unit Economics
Original Property
Acquisition only
Build New Homes
Soft + hard costs
All-In
Total project
# of original homes
N/A
# of new homes
1
Total homes
1
Per Home
N/A
Per Home
$582K
Per Home
$1.41M
# of original sq ft
935
# of new sq ft
1,341
Total sq ft
2,276
Per Sq Ft
N/A
Per Sq Ft
$434
Per Sq Ft
$617
Total
$823K
Total
$582K
Total
$1.41M
Financing Estimate
Construction Loan

Estimate construction proceeds, cash required, and interest-only payments.

Construction Estimate
Loan Proceeds
Construction basis
Soft + hard costs
$582K
Loan proceeds
65% loan-to-cost
$378K
Cash required
Unfinanced development cost
$204K
Monthly payment
Interest-only estimate
$3K

Timeline

Typical project phasing based on the selected scenario, density, and generated development scope.

Estimated Total Duration

15 months

SB9

Design

Concept design, site planning, and early coordination.

2 months

Month 1 - Month 2

Permitting

Planning review, entitlement approvals, and building permits.

4 months

Month 3 - Month 6

Site Work

Utility coordination, grading, and site preparation.

2 months

Month 7 - Month 8

Construction

Vertical construction through final inspection.

7 months

Month 9 - Month 15

Property Overview

MLS: bridgeMLS

Property information from bridgeMLS

Listed by Rachel Melby · Red Oak Realty

bridgeMLS © 2026. Information Deemed Reliable but not Guaranteed. This information is being provided by bridgeMLS. The listings presented here may or may not be listed by the Broker/Agent operating this website. This information is intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated at October 27, 2026 at 3:10 PM PDT.

Location

Data from Type Five
Jurisdiction
El Cerrito
Zoning
RS-5
Overlay Districts
-
Climate Zone
Zone 3
Transit Access (1/2 mi)
Yes (Colusa Av & Lynn Av · 0.21 mi)

Natural Hazards

Data from Type Five
Flood Zone
X
Liquefaction Risk
Yes
Landslide Risk
No
Fault Zone
No

Fire Risk

Data from Type Five
Fire Hazard Zone
NOT IN A VHFHSV
Fire Responsibility
LRA
Wildfire Protection Req.
No