$3,388,888
181 W Duane Ave, Sunnyvale 94085
AddressIntel AI Briefing
With the asking price already exceeding the neighborhood's average new-build ARV, traditional redevelopment is financially unfeasible. The optimal play is stealth density: primary + ADU + JADU, but local liquefaction hazard zones act as a costly construction blocker.
Property Permit History
Recent Neighborhood Remodeling (Sunnyvale)
Parcel & Zoning Info
ADU Potential
Flag / irregular · Corner lot · ~77 ft frontage × 110 ft deep, a tucked-away rear unit is very private; access is typically via the pole driveway. 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
Existing home already uses most of the allowable floor area, little expansion headroom. Zoning allows roughly 2,156 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: Sunnyvale Muni Code Ch. 19.32, Table 19.32.020 (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
Bishop Elementary
Sunnyvale
Columbia Middle
Sunnyvale
Mission Early College High
Santa Clara Unified
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
67/100
Based on recent sales velocity and local demand in 94085.
Flippability Score
15/100
Measures neighborhood renovation density vs. recent permits on this property.
Bidding War Prob.
37%
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 2,754 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 6 recent single-family sales in 94085: $1,175/sqft.
Projected Profit
Warning: Project is mathematically underwater.