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ActiveSingle Family

$1,699,999

523 Hull Ave, San Jose 95125

Beds3
Baths2
Sqft1,615
DOM9
No Photos Available

AddressIntel AI Briefing

With liquefaction present on the site, the optimal play is stealth density: primary + ADU + JADU to add rental capacity with lower structural risk than an SB 9 split. This allows developers to exploit San Jose's strong rental demand without triggering extensive foundation mitigation. The moderate entry price provides a very stable starting basis.

Property Permit History

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

Recent Neighborhood Remodeling (San Jose)

2026-09-174887 PEPPERWOOD WY , SAN JOSE CA 95124-5219
Single-Family
--Active
2026-09-172626 GASSMANN DR , SAN JOSE CA 95121-2811
Single-Family
--Active
2026-09-172968 BETSY WY , SAN JOSE CA 95133-2009
Single-Family
$1,759Active
2026-09-172287 RIORDAN DR , SAN JOSE CA 95130-2063
Single-Family
$22,236Active
2026-09-172474 KENWOOD AV , SAN JOSE CA 95128-1336
Single-Family
--Active
2026-09-171810 NELSON WY , SAN JOSE CA 95124-3627
Single-Family
--Active

Parcel & Zoning Info

APN26445050
Official Lot Sqft5,663
Zoning Code--
SB 9 StatusLikely · up to 4 units
SB 9 Block Reasons No SB 9 disqualifiers found
Development Blockers
Liquefaction
Unlock Pathways
Ministerial ADU Ministerial SB 9 Density Bonus AB 1033 (sell ADU as condo)
Entitlement RiskLow (0/100)

ADU Potential

Feasibility Score88/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size1,200 sqft
Existing Coverage28.5%

Deep lot · Corner lot · ~53 ft frontage × 135 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.

Redevelopment Potential

Redevelopment Score50/100
ClassExpansion room
FAR Utilization63% of allowed
Buildable Headroom+933 sqft

Meaningful unused floor-area headroom under current zoning, room to add square footage. Zoning allows roughly 2,548 sqft of gross floor area on this lot.

Screening estimate comparing existing living area to the city's single-family floor-area limit. FAR figure is a discretionary-review trigger, not a hard cap. Treat as approximate. Source: SJMC 20.30.200; 20.100.1020 (Single-Family House Permit) (as of 2026-06-30). Verify FAR, coverage, setbacks, and height with the local planning dept.

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

Yes
In a mapped liquefaction zone. May require specialized foundation engineering.

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. Liquefaction and fault flags: modified from California Geological Survey, Web Service of Official Maps of Alquist-Priolo Earthquake Fault Zones and Web Service of Official Maps of Seismic Hazard Zones (2025).

Nearby Public Schools

Elementary School

Gardner Elementary

San Jose Unified

0.3 miles away
Middle School

Herbert Hoover Middle

San Jose Unified

1.9 miles away
High School

Abraham Lincoln High

San Jose Unified

1.7 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

100/100

Based on recent sales velocity and local demand in 95125.

Flippability Score

60/100

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

Bidding War Prob.

17%

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.

Zoning allows roughly 2,548 sqft on this lot, and the default builds to that envelope. The FAR figure is a discretionary-review trigger, not a hard cap.

Median of 12 recent single-family sales in San Jose (95125): $983/sqft. Sized within 25% of the 2,500 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$1,375,000
New Build2,500 sqft
Total Capital Required$3,249,999
Estimated Resale (ARV)$2,457,500
Cost of Sale (5%)-$122,875
Net Proceeds$2,334,625

Projected Profit

-$915,374
-28.2% ROI

Warning: Project is mathematically underwater.

Recent Comparables (San Jose 95125)

Sized to the modelled 2,500 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

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