$9,880,000
19 Farm Ln, Hillsborough 94010
AddressIntel AI Briefing
The optimal play here is teardown-and-mansionize to build a massive new estate up to 15,480 sqft, capitalizing on the ultra-high median household income of $250k+ and 97% owner-occupancy. With no active hazard zones or blockers, the huge lot size provides an uninhibited canvas for high-end luxury development. The property's massive size-matched resale potential ensures a strong projected return.
Property Permit History
| Date | Project Type | Status | Valuation | Contractor |
|---|---|---|---|---|
| 2026-08-24 | SEWER VIDEO REVIEW FOR PROPERT... | Issued | -- | Unknown |
Recent Neighborhood Remodeling (Hillsborough)
Parcel & Zoning Info
ADU Potential
Standard lot · ~190 ft frontage × 289 ft deep, typical proportions for a detached ADU behind or beside the home.
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
Meaningful unused floor-area headroom under current zoning, room to add square footage. Zoning allows roughly 15,480 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: conservative default (0.40 FAR — city not individually curated) (as of 2026-06-30). Verify FAR, coverage, setbacks, and height 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.
Nearby Public Schools
North Hillsborough
Hillsborough City Elementary
Crocker Middle
Hillsborough City Elementary
Burlingame High
San Mateo 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
95/100
Based on recent sales velocity and local demand in 94010.
Flippability Score
88/100
Measures neighborhood renovation density vs. recent permits on this property.
Bidding War Prob.
53%
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 15,480 sqft from a conservative 0.40 FAR approximation, a starting point and not a zoning answer. Check the local code before you rely on it.
Median of 9 recent single-family sales in Hillsborough (94010): $1,405/sqft. Sized within 50% of the 15,000 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.
Projected Profit
Warning: Margin is tight for the construction risk.
Recent Comparables (Hillsborough 94010)
Sized to the modelled 15,000 sqft build: sales within 50% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.