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ActiveSingle Family

$1,198,888

414 Patton Ave, San Jose 95128

Beds3
Baths2
Sqft1,008
DOM1
No Photos Available

AddressIntel AI Briefing

An old, small cottage with tiny lot coverage sold in as-is condition is the perfect candidate for redevelopment. The optimal play is teardown-and-mansionize, or alternatively, a stealth density play leveraging AB 1033 condo sales of newly built ADUs. High owner occupancy in the area ensures strong resale support.

Property Permit History

No permit history found directly associated with this property's address.

Recent Neighborhood Remodeling (San Jose)

2026-09-043813 BARKER DR , SAN JOSE CA 95117-2405
Apartment
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2026-09-03980 ALMADEN LAKE DR , SAN JOSE CA
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2026-09-03175 BAYPOINTE PY , SAN JOSE CA 95134-0000
Apartment
--Active
2026-09-031318 CHANDON CT , SAN JOSE CA 95125-5975
Townhouse
--Active
2026-09-035102 KINGSTON WY , SAN JOSE CA 95130-2217
Single-Family
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2026-09-036909 AUSTWICK CT , SAN JOSE CA 95119-1808
Single-Family
$21,961Active

Parcel & Zoning Info

APN27703059
Official Lot Sqft5,663
Zoning CodeR1
SB 9 StatusEligible · up to 4 units
Unlock Pathways
Ministerial ADU Ministerial SB 9 Density Bonus AB 1033 (sell ADU as condo)
Entitlement RiskLow (0/100)

ADU Potential

Feasibility Score100/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size1,200 sqft
Existing Coverage17.8%

Deep lot · Corner lot · ~56 ft frontage × 106 ft deep, room to set a detached ADU back from the street with a buffer, reads as a separate home. A second street frontage lets an ADU take its own entrance and address.

Screening heuristic based on lot size, existing coverage, lot orientation, and hazard overlays. CA ADU law is ministerial statewide; verify max size, setbacks, and JADU owner-occupancy with the local planning dept.

Seller Motivation

Motivation Score15/100
Low motivation
Sold as-is

Inferred from days on market and listing-description language (e.g. "as-is", "estate sale", "motivated seller"). A screening heuristic for likely negotiability, not a statement about the seller's circumstances.

Hazard Snapshot

Flood Zone

D
Special flood hazard area; insurance may be required.

Fire Severity

None
Not in a mapped state fire severity zone.

Liquefaction

No
Not in a mapped liquefaction zone.

Fault Zone

No
Not in a mapped Alquist-Priolo fault zone.

Not a substitute for a Natural Hazard Disclosure (NHD) report. Zones reflect available GIS data and may not cover all localities.

Nearby Public Schools

Elementary School

Luther Burbank Elementary

Luther Burbank

0.5 miles away
Middle School

Herbert Hoover Middle

San Jose Unified

1.0 miles away
High School

Abraham Lincoln High

San Jose Unified

0.7 miles away

School boundaries are subject to change. Nearest school distance does not guarantee enrollment eligibility. Check with the local district. Data provided by CDE.

Proprietary Intelligence

Market Heat Index

66/100

Based on recent sales velocity and local demand in 95128.

Flippability Score

85/100

Measures neighborhood renovation density vs. recent permits on this property.

Bidding War Prob.

21%

Likelihood of multiple offers based on local list-to-sale ratios and DOM.

Proforma ROI Calculator

Back-of-the-napkin deal analysis across development strategies.

Median of 12 recent single-family sales in San Jose (95128): $1,062/sqft. Sized within 25% of the 1,500 sqft build, because smaller houses sell for more per foot and pricing a rebuild off them overstates resale.

Commission, transfer tax and closing. Deducted from resale before profit, so the ROI below is net of the exit rather than gross.

Carry on total capital for the project duration. At 0% the model is a cash purchase; 12 months at a typical construction-loan rate moves ROI by 6 to 10 points on a deal this size, so price it with your real rate.

Hard Costs$825,000
New Build1,500 sqft
Total Capital Required$2,198,888
Estimated Resale (ARV)$1,593,000
Cost of Sale (5%)-$79,650
Net Proceeds$1,513,350

Projected Profit

-$685,538
-31.2% ROI

Warning: Project is mathematically underwater.

Recent Comparables (San Jose 95128)

Sized to the modelled 1,500 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

189 Bellerose Dr

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732 S Daniel Way

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$1,600,000
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$/Sqft: $1,064

545 Bradley Ave

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$1,050,000
Sold: 2026-08-24
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$/Sqft: $891

2123 Leon Dr

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$1,600,000
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$/Sqft: $897

513 Leland Ave

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1221 Castlemont Ave

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$1,650,000
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2351 Fruitdale Ave

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$1,500,000
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$/Sqft: $1,070

2248 Stokes St

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$/Sqft: $1,211

1718 Cheney Dr

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$1,500,000
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$/Sqft: $1,001

637 S Baywood Ave

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$2,005,000
Sold: 2026-07-31
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$/Sqft: $1,329

2481 Whitethorne Dr

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$1,500,000
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$/Sqft: $1,013