$1,588,000
3421 El Camino Real Apt 22, Atherton 94027
AddressIntel AI Briefing
This high-end Atherton property is situated on an extremely constrained lot with severe ADU and SB 9 development limitations. A teardown is not viable, making an interior value-add remodel the only practical strategy to align it with neighboring comps. Investors should focus on cosmetic luxury upgrades to appeal to high-end renters or executive buyers.
Property Permit History
Recent Neighborhood Remodeling (Atherton)
Parcel & Zoning Info
ADU Potential
Flag / irregular · ~38 ft frontage × 45 ft deep, a tucked-away rear unit is very private; access is typically via the pole driveway.
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.
Hazard Snapshot
Flood Zone
Fire Severity
Liquefaction
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
Garfield Elementary
Redwood City Elementary
John F. Kennedy Middle
Redwood City Elementary
Summit Preparatory Charter High
Sequoia Union High
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
56/100
Based on recent sales velocity and local demand in 94027.
Flippability Score
40/100
Measures neighborhood renovation density vs. recent permits on this property.
Bidding War Prob.
32%
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 Atherton (94027): $2,504/sqft, plus 5% because new houses sold at a median 1.07x their comps across 239 real rebuilds. Sized within 25% of the 3,100 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.
Interest on the purchase price for the whole project plus half the build budget, since construction draws ramp up. The default is 7% over 33 months, the median purchase-to-sale time of 239 real Peninsula and South Bay rebuilds. Set the rate to 0 for a cash purchase, or use your own lender's terms.
Projected Profit
Recent Comparables (Atherton 94027)
Sized to the modelled 3,100 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.