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ActiveSingle Family

$9,250,000

26541 Purissima Rd, Los Altos Hills 94022

Beds4
Baths5.5
Sqft4,990
DOM3
No Photos Available

AddressIntel AI Briefing

The optimal play is a high-end teardown-and-mansionize build to establish a custom trophy home on over an acre of prime land. The absolute lack of environmental hazards and superior local income levels provide an exceptional margin of safety.

Property Permit History

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

Recent Neighborhood Remodeling (Los Altos Hills)

Parcel & Zoning Info

APN17547005
Official Lot Sqft50,530
Zoning Code--
SB 9 StatusLikely · up to 4 units
Unlock Pathways
Ministerial ADU Ministerial SB 9 Density Bonus
Entitlement RiskLow (0/100)

ADU Potential

Feasibility Score100/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size1,200 sqft
Existing Coverage9.9%

Flag / irregular · Corner lot · ~302 ft frontage × 324 ft deep, a tucked-away rear unit is very private; access is typically via the pole driveway. 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 Score39/100
ClassExpansion room
FAR Utilization72% of allowed
Buildable Headroom+1,970 sqft

Meaningful unused floor-area headroom under current zoning, room to add square footage. Zoning allows roughly 6,960 sqft of gross floor area on this lot.

Screening estimate comparing existing living area to the city's single-family floor-area limit. City sets no explicit FAR (or is not individually curated); allowable area is a conservative estimate. Source: Los Altos Hills Muni Code 10-1.503 (MFA = LUF x slope formula) (as of 2026-06-30). Verify FAR, coverage, setbacks, and height with the local planning dept.

Hazard Snapshot

Flood Zone

X
Area of minimal flood hazard.

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

Gardner Bullis Elementary

Los Altos Elementary

0.9 miles away
Middle School

Ardis G. Egan Junior High

Los Altos Elementary

2.1 miles away
High School

Palo Alto Middle College High

Palo Alto Unified

1.0 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 94022.

Flippability Score

75/100

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

Bidding War Prob.

19%

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.

We don't hold this jurisdiction's floor-area rule, so the default builds to roughly 6,960 sqft from a conservative 0.40 FAR approximation — a starting point, not a zoning answer. Check the local code before you rely on it.

Median of 8 recent single-family sales in Los Altos Hills (94022): $1,257/sqft. Sized within 25% of the 7,000 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$3,850,000
New Build7,000 sqft
Total Capital Required$13,275,000
Estimated Resale (ARV)$8,799,000
Cost of Sale (5%)-$439,950
Net Proceeds$8,359,050

Projected Profit

-$4,915,950
-37.0% ROI

Warning: Project is mathematically underwater.

Recent Comparables (Los Altos Hills 94022)

Sized to the modelled 7,000 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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