$3,700,000
3404 Ridgemont Dr, Mountain View 94040
AddressIntel AI Briefing
Given the fully updated status of the existing structure, a traditional teardown is financially unviable. The optimal play is stealth density: primary + ADU + JADU to take advantage of the 93/100 ADU feasibility and high 97.3% owner occupancy. This delivers additional yield in an affluent, low-hazard Mountain View enclave.
Property Permit History
Recent Neighborhood Remodeling (Mountain View)
Parcel & Zoning Info
ADU Potential
Standard lot · Corner lot · ~82 ft frontage × 101 ft deep, typical proportions for a detached ADU behind or beside the home. 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
Meaningful unused floor-area headroom under current zoning, room to add square footage. Zoning allows roughly 3,306 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: Mountain View Zoning Ord. Ch. 36 (R1 Handbook) (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
Oak Avenue Elementary
Los Altos Elementary
Georgina P. Blach Junior High
Los Altos Elementary
Mountain View High
Mountain View-Los Altos 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
70/100
Based on recent sales velocity and local demand in 94040.
Flippability Score
40/100
Measures neighborhood renovation density vs. recent permits on this property.
Bidding War Prob.
42%
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 3,306 sqft on this lot, and the default builds to that envelope. The FAR figure is a discretionary-review trigger, not a hard cap.
Median of 12 recent single-family sales in Mountain View (94040): $1,662/sqft. Sized within 25% of the 3,300 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 (Mountain View 94040)
Sized to the modelled 3,300 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.