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1751 Reliez Valley Road

Not Listed · Lafayette

1751 Reliez Valley Road

Style

Single Family Residence

Zoning

R-40

Year built

1997

Existing

4 bd · 3 ba

Interior

3,776 sf

Lot size

100,982 sf

$3,950,000

Unlisted

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 1-3 potential units
$1.3M-$2.1M estimated cost
$4.2M-$6.4M future value add

ADU

Some density options may be space constrained
Add 1 potential unit to the backyard
$502K estimated cost
$1.4M future value add
Loading infill model...

Density level

Density controls will appear after the model finishes loading.

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
$5,395,243
SB9 scenario · 1 new unit · 2,954 new sf
Build Cost / SF
$
SB9 build cost$1,326,743
25% of project cost
Property acquisition$4,068,500
75% of project cost
Estimated Project Value (2 Year)
$8,114,276
50.4% total ROI
$2,719,032 potential ROI
Added scenario value$4,164,276
51% of completed value
Current property value$3,950,000
49% of completed value
Acquisition75%
Soft Costs3%
Hard Costs21%
Value Projections
Today estimate$3,950,000
Scenario added sqft$4,164,276
Completed value$8,114,276
Potential ROI$2,719,032
Assumptions
Current value / sf$1,410
Added sqft2,954 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
$1.33M
Per Home
$5.40M
# of original sq ft
2,802
# of new sq ft
2,954
Total sq ft
5,756
Per Sq Ft
N/A
Per Sq Ft
$449
Per Sq Ft
$937
Total
$4.07M
Total
$1.33M
Total
$5.40M
Financing Estimate
HELOC

Estimate available equity and interest-only payments for funding the build.

HELOC Estimate
Available Equity
Estimated current value
Internal current-value baseline
$3.95M
Max HELOC
80% CLTV minus mortgage balance
$790K
Requested HELOC
Capped by available equity
$790K
Monthly payment
Interest-only estimate
$4K

Timeline

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

Estimated Total Duration

16 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.

8 months

Month 9 - Month 16

Property Overview

MLS: bridgeMLS

Property information from bridgeMLS

Listed by Lupe Kemper · Compass

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 August 10, 2026 at 7:04 PM PDT.

Location

Data from Type Five
Jurisdiction
Lafayette
Zoning
R-40
Overlay Districts
LAFAYETTE HILLSIDE OVERLAY DISTRICT
Climate Zone
Zone 12
Transit Access (1/2 mi)
-

Natural Hazards

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

Fire Risk

Data from Type Five
Fire Hazard Zone
Very High Fire Hazard Zone
Fire Responsibility
LRA
Wildfire Protection Req.
-
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