$4,650,000
818 Crossway Rd, Burlingame 94010
AddressIntel AI Briefing
Given the recently remodeled condition of this historic estate, the optimal play here is stealth density: primary + ADU + JADU to preserve the existing high-value structure. Direct teardown plays are economically discouraged due to the high entry cost and existing quality, but the spacious backyard provides excellent easement pathways for accessory dwellings.
Property Permit History
Recent Neighborhood Remodeling (Burlingame)
Parcel & Zoning Info
ADU Potential
Flag / irregular · ~157 ft frontage × 188 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.
Redevelopment Potential
Existing home already uses most of the allowable floor area, little expansion headroom. Zoning allows roughly 3,879 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
McKinley Elementary
Burlingame 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
45/100
Measures neighborhood renovation density vs. recent permits on this property.
Bidding War Prob.
50%
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 3,879 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 12 recent single-family sales in Burlingame (94010): $1,416/sqft. Sized within 25% of the 3,900 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: Project is mathematically underwater.
Recent Comparables (Burlingame 94010)
Sized to the modelled 3,900 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.