$2,899,000
580-590 Chestnut St, San Carlos 94070
AddressIntel AI Briefing
The optimal play here would be a stealth density: primary + ADU + JADU or an SB 9 lot split, but the high asking price relative to ARV completely erodes margins. Furthermore, liquefaction risk adds construction complexity, making this deal economically unfeasible for a typical developer.
Property Permit History
Recent Neighborhood Remodeling (San Carlos)
Parcel & Zoning Info
ADU Potential
Flag / irregular · Corner lot · ~108 ft frontage × 111 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 2,200 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
Arroyo
San Carlos Elementary
Central Middle
San Carlos Elementary
Redwood High
Sequoia 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
85/100
Based on recent sales velocity and local demand in 94070.
Flippability Score
20/100
Measures neighborhood renovation density vs. recent permits on this property.
Bidding War Prob.
45%
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 4,800 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 6 recent single-family sales in 94070: $1,423/sqft.