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2100 100th Avenue

Alameda · Oakland

2100 100th Avenue

Style

Single Family Residence

Zoning

RD

Year built

1938

Existing

2 bd · 2 ba

Interior

1,641 sf

Lot size

5,392 sf

$550,000

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 potential unit
$314K estimated cost
$352K future value add

Applicable but Space Constrained: ADU

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
$880,453
SB9 scenario · 1 new unit · 552 new sf
Build Cost / SF
$
SB9 build cost$313,953
36% of project cost
Property acquisition$566,500
64% of project cost
Estimated Project Value (2 Year)
$902,322
$878,834 1-year project value ·
2.5% total ROI
$21,869 potential ROI
Added scenario value$352,322
39% of completed value
Current property value$550,000
61% of completed value
Acquisition64%
Soft Costs9%
Hard Costs26%
Value Projections
Today list price$550,000
24-month added value$352,322
24-month project value$902,322
Potential ROI$21,869
Assumptions
Current sale / sf$335
Average sale / sf$556
Annual growth7.1%
Comp bedrooms2
Comp radius5 miles
Price / sf sourceAverage sold comps
Added sqft552 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
$314K
Per Home
$880K
# of original sq ft
1,641
# of new sq ft
552
Total sq ft
2,193
Per Sq Ft
N/A
Per Sq Ft
$569
Per Sq Ft
$401
Total
$567K
Total
$314K
Total
$880K
Financing Estimate
Construction Loan

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

Construction Estimate
Loan Proceeds
Construction basis
Soft + hard costs
$314K
Loan proceeds
65% loan-to-cost
$204K
Cash required
Unfinanced development cost
$110K
Monthly payment
Interest-only estimate
$2K

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 Betty Crater · Hall and Hall Associates RE

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 June 29, 2026 at 9:40 AM PDT.

Location

Data from Type Five
Jurisdiction
Oakland
Zoning
RD
Overlay Districts
None
Climate Zone
Zone 3
Transit Access (1/2 mi)
Yes (Bancroft Av & 99th Av)

Natural Hazards

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

Fire Risk

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