$4,250,000
1509 Walnut Dr, Campbell 95008
AddressIntel AI Briefing
Despite the modern 2013 construction making a teardown wasteful, the massive half-acre lot presents a perfect canvas for an SB 9 lot split into multiple units. Alternatively, a stealth density play of adding a primary home expansion plus luxury detached ADUs would maximize this highly coveted Campbell parcel. The absence of flood, fire, or seismic hazards removes any typical development blockers.
Property Permit History
Recent Neighborhood Remodeling (Campbell)
Parcel & Zoning Info
ADU Potential
Flag / irregular · Corner lot · ~196 ft frontage × 215 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
Meaningful unused floor-area headroom under current zoning, room to add square footage. Zoning allows roughly 9,801 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: Campbell Muni Code 21.08.050 Table 2-4 (Ord. 2293/2299, 2023) (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. 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
Capri Elementary
Campbell Union
Rolling Hills Middle
Campbell Union
Westmont High
Campbell 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
78/100
Based on recent sales velocity and local demand in 95008.
Flippability Score
70/100
Measures neighborhood renovation density vs. recent permits on this property.
Bidding War Prob.
14%
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 9,801 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 Campbell (95008): $1,160/sqft. No size-matched sales in Campbell, so this median mixes build sizes and reads high for a large rebuild.
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 (Campbell 95008)
No size-matched sales in Campbell, so these are unmatched on size and the ARV below is a loose estimate.