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ActiveSingle Family

$2,499,000

488 Sapphire St, Redwood City 94062

Beds3
Baths2.5
Sqft1,877
DOM13
No Photos Available

AddressIntel AI Briefing

An 86-year-old home sitting on a 12,254 sqft lot with only 15% coverage is an outstanding development target. The optimal play is an SB 9 lot split to construct multiple luxury homes, taking full advantage of the high-end Redwood City market. The complete absence of hazards ensures a highly profitable construction budget.

Property Permit History

No permit history found directly associated with this property's address.

Recent Neighborhood Remodeling (Redwood City)

2104-05-0710 GRAND ST
TREE
--Issued
2026-07-17554 LANCASTER WAY
ALTERATIONS_RESIDENTIAL
--Issued
2026-07-17467 TILLER LN
ALTERATIONS_RESIDENTIAL
--Issued
2026-07-17251 ENCINA AVE
ALTERATIONS_RESIDENTIAL
--Issued
2026-07-1731 MYRTLE ST
ALTERATIONS_RESIDENTIAL
--Issued
2026-07-17194 MYRTLE ST
SOLAR APP PLUS
--Issued

Parcel & Zoning Info

APN058142020
Official Lot Sqft12,254
Zoning CodeNO DATA ASSIGNED
SB 9 StatusLikely · up to 4 units
Unlock Pathways
Ministerial ADU Ministerial SB 9 Density Bonus
Entitlement RiskLow (0/100)

ADU Potential

Feasibility Score100/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size1,200 sqft
Existing Coverage15.3%

Flag / irregular · Corner lot · ~164 ft frontage × 166 ft deepa 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

Redevelopment Score83/100
ClassTeardown candidate
FAR Utilization34% of allowed
Buildable Headroom+3,637 sqft

Small, older home using a low share of the allowable building envelope on a sizable lot — a scrape-and-rebuild or major-expansion play. Zoning allows roughly 5,514 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: Redwood City Zoning Code Art. 5 & 48 (Apr 2026 standards) (as of 2026-06-30). Verify FAR, coverage, setbacks, and height with the local planning dept.

Hazard Snapshot

Flood Zone

X
Area of minimal flood hazard.

Fire Severity

None
Not in a mapped state fire severity zone.

Liquefaction

No
Not in a mapped liquefaction zone.

Fault Zone

No
Not in a mapped Alquist-Priolo 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

Elementary School

Orion Alternative

Redwood City Elementary

0.3 miles away
Middle School

McKinley Institute of Technology

Redwood City Elementary

0.9 miles away
High School

Sequoia High

Sequoia Union High

1.0 miles away

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

69/100

Based on recent sales velocity and local demand in 94062.

Flippability Score

82/100

Measures neighborhood renovation density vs. recent permits on this property.

Bidding War Prob.

19%

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.

Based on 6 recent sales in 94062 averaging $1,587/sqft.

Hard Costs$1,126,400
New Build2,816 sqft
Total Capital Required$3,800,400
Estimated Resale (ARV)$4,468,992

Projected Profit

$668,592
17.6% ROI

Warning: Margin is tight for the construction risk.

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