$5,200,000
643 W Glen Way, Woodside 94062
AddressIntel AI Briefing
The optimal play is a high-end teardown-and-mansionize project to build a custom estate on this massive lot. However, the high fire hazard zone acts as a substantial blocker that will elevate construction and insurance costs. If preservation is preferred, adding luxury ADUs avoids these regulatory hurdles while preserving the remodeled main residence.
Property Permit History
| Date | Project Type | Status | Valuation | Contractor |
|---|---|---|---|---|
| 2025-08-20 | ENCROACHMENT - UTILITIES | Issued | -- | Owner Builder |
| 2025-06-11 | REROOF - REROOF RESIDENCE | Finaled | $21,240 | SHELTON ROOFING CO INC |
Recent Neighborhood Remodeling (Woodside)
Parcel & Zoning Info
ADU Potential
Wide & shallow · ~194 ft frontage × 226 ft deep, limited depth, an ADU likely sits beside the house rather than behind it.
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 4,000 sqft of gross floor area on this lot.
Screening estimate comparing existing living area to the city's single-family floor-area limit. FAR rule curated from current municipal code. Source: Woodside Muni Code 153.206 (SR), Town Zoning Ordinance Development Standards sheet (DocumentCenter/View/901) (as of 2026-09-03). 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. 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
Roy Cloud Elementary
Redwood City Elementary
John F. Kennedy Middle
Redwood City Elementary
Canyon Oaks Youth Center
San Mateo County Office of Education
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
73/100
Based on recent sales velocity and local demand in 94062.
Flippability Score
60/100
Measures neighborhood renovation density vs. recent permits on this property.
Bidding War Prob.
24%
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.
Zoning allows roughly 4,000 sqft here, less than the 4,590 sqft standing today, so a compliant rebuild would be smaller than the existing house. We don't quote a return on this one. Demolishing generally forfeits the existing non-conforming floor area, so treat it as a remodel or check the local code for what it lets you rebuild.
Median of 12 recent single-family sales in Woodside (94062): $1,402/sqft, plus 5% because new houses sold at a median 1.07x their comps across 239 real rebuilds. Sized within 25% of the 4,600 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
Warning: Project is mathematically underwater.
Recent Comparables (Woodside 94062)
Sized to the modelled 4,600 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.