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ActiveSingle Family

$5,198,000

27220 Carrington Cir, Los Altos Hills 94022

Beds4
Baths3.5
Sqft3,790
DOM9
No Photos Available

AddressIntel AI Briefing

The optimal play is teardown-and-mansionize, targeting an ultra-luxury estate of up to 17,000+ sqft to capture the area's massive $30M price ceiling. The massive one-acre lot and high-income census demographics provide the perfect foundation for a high-end custom development. A moderate fire hazard zone is the only minor constraint requiring mitigation.

Property Permit History

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

Recent Neighborhood Remodeling (Los Altos Hills)

Parcel & Zoning Info

APN18220058
Official Lot Sqft43,560
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 Coverage8.7%

Wide & shallow · Corner lot · ~254 ft frontage × 267 ft deep, limited depth, an ADU likely sits beside the house rather than behind it. 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+2,210 sqft

Meaningful unused floor-area headroom under current zoning, room to add square footage. Zoning allows roughly 6,000 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

Moderate
Elevated fire risk; impacts insurance cost and building materials.

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

1.8 miles away
Middle School

Ardis G. Egan Junior High

Los Altos Elementary

3.0 miles away
High School

Palo Alto Middle College High

Palo Alto Unified

1.5 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

67/100

Based on recent sales velocity and local demand in 94022.

Flippability Score

82/100

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

Bidding War Prob.

22%

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 6,000 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 6 recent single-family sales in 94022: $2,180/sqft.

Hard Costs$2,400,000
New Build6,000 sqft
Total Capital Required$7,773,000
Estimated Resale (ARV)$13,080,000

Projected Profit

$5,307,000
68.3% ROI

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