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ActiveSingle Family

$2,288,000

1657 Nightingale Ave, Sunnyvale 94087

Beds3
Baths2
Sqft1,417
DOM1
No Photos Available

AddressIntel AI Briefing

Stealth density (primary + ADU + JADU) is the recommended strategy here to preserve the existing remodeled structure while adding rental income in a high-demand Sunnyvale census block. With zero hazard blockers and a clean site profile, ministerial approvals for ADU additions will be fast-tracked. A full teardown is less attractive due to tight margins and high lot coverage limits on the relatively small 5,663 sqft lot.

Property Permit History

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

Recent Neighborhood Remodeling (Sunnyvale)

2026-08-04939 POPLAR Sunnyvale CA 94086
Electrical
--ISSUED
2026-08-04721 VALONIA OAK Sunnyvale CA
Roofing
--ISSUED
2026-08-04755 PIERINO Sunnyvale CA 94086
Plumbing
--ISSUED
2026-08-04253 FRINGE TREE Sunnyvale CA 94086
Plumbing
--ISSUED
2026-08-04796 DUNCARDINE Sunnyvale CA 94087
Other
--ISSUED
2026-08-04664 SAN MIGUEL Sunnyvale CA 94085
Electrical
--ISSUED

Parcel & Zoning Info

APN31338024
Official Lot Sqft5,663
Zoning Code--
SB 9 StatusLikely · up to 4 units
Unlock Pathways
Ministerial ADU Ministerial SB 9 Density Bonus
Entitlement RiskLow (0/100)

ADU Potential

Feasibility Score85/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size1,200 sqft
Existing Coverage25%

Standard lot · Corner lot · ~61 ft frontage × 100 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

Redevelopment Score45/100
ClassExpansion room
FAR Utilization56% of allowed
Buildable Headroom+1,131 sqft

Meaningful unused floor-area headroom under current zoning, room to add square footage. Zoning allows roughly 2,548 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

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

Laurelwood Elementary

Santa Clara Unified

0.6 miles away
Middle School

Marian A. Peterson Middle

Santa Clara Unified

0.7 miles away
High School

Santa Clara Community Day

Santa Clara Unified

1.2 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

89/100

Based on recent sales velocity and local demand in 94087.

Flippability Score

65/100

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

Bidding War Prob.

72%

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 2,548 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 94087: $1,527/sqft.

Hard Costs$1,000,000
New Build2,500 sqft
Total Capital Required$3,463,000
Estimated Resale (ARV)$3,817,500

Projected Profit

$354,500
10.2% ROI

Warning: Margin is tight for the construction risk.

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