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ActiveSingle Family

$2,888,888

1117 Clydebank Ct, Sunnyvale 94087

Beds4
Baths3
Sqft2,300
DOM4
No Photos Available

AddressIntel AI Briefing

The optimal play is stealth density: primary + ADU + JADU to expand the footprint on this investor-friendly block. Bypassing a teardown preserves the brand-new condition of the primary residence while maximizing allowable FAR.

Property Permit History

DateProject TypeStatusValuationContractor
2026-09-03Minor Building PermitActive - Issued$3,000Unknown

Recent Neighborhood Remodeling (Sunnyvale)

2026-10-21 • 1075 HAMSHIRE CT SUNNYVALE CA 94087
Engineering Project - Encroachment Permit
--Active - Issued
2026-10-21 • 1081 BAKER CT SUNNYVALE CA 94087
Minor Building Permit
$3,000Active - Issued
2026-10-21 • 425 S FAIR OAKS AV SUNNYVALE CA 94086
Minor Building Permit
$9,000Active - Issued
2026-10-21 • 1215 MANDARIN DR SUNNYVALE CA 94087
SolarAPP+
$32,000Active - Issued
2026-10-20 • 823 E HOMESTEAD RD SUNNYVALE CA 94087
Building Project
$14,000Active - Issued
2026-10-20 • 395 W EL CAMINO REAL SUNNYVALE CA 94086
Building Project
$20,000Active - Issued

Parcel & Zoning Info

APN31315026
Official Lot Sqft7,405
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 Score96/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size1,200 sqft
Existing Coverage31.1%

Flag / irregular · Corner lot · ~107 ft frontage × 136 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

Redevelopment Score43/100
ClassExpansion room
FAR Utilization69% of allowed
Buildable Headroom+1,032 sqft

Meaningful unused floor-area headroom under current zoning, room to add square footage. Zoning allows roughly 3,332 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. 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

Elementary School

Laurelwood Elementary

Santa Clara Unified

0.3 miles away
Middle School

Marian A. Peterson Middle

Santa Clara Unified

0.3 miles away
High School

New Valley Continuation High

Santa Clara Unified

0.7 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

90/100

Based on recent sales velocity and local demand in 94087.

Flippability Score

60/100

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

Bidding War Prob.

56%

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 3,332 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 Sunnyvale (94087): $1,334/sqft, plus 5% because new houses sold at a median 1.07x their comps across 239 real rebuilds. Sized within 25% of the 3,300 sqft build, because smaller houses sell for more per foot and pricing a rebuild off them overstates resale.

Commission, transfer tax and closing. Deducted from resale before profit, so the ROI below is net of the exit rather than gross.

Interest on the purchase price for the whole project plus half the build budget, since construction draws ramp up. The default is 7% over 33 months, the median purchase-to-sale time of 239 real Peninsula and South Bay rebuilds. Set the rate to 0 for a cash purchase, or use your own lender's terms.

Hard Costs$1,815,000
New Build3,300 sqft
Total Capital Required$4,878,888
Estimated Resale (ARV)$4,623,300
Cost of Sale (5%)-$231,165
Carry (33mo @ 7%)-$747,648
Net Proceeds$3,644,487

Projected Profit

-$1,234,401
-25.3% ROI

Warning: Project is mathematically underwater.

Recent Comparables (Sunnyvale 94087)

Sized to the modelled 3,300 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

1035 Lorne Way

Sold
$3,412,000
Sold: 2026-10-02
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Sqft: 3621
$/Sqft: $942

1343 Poplar Ave

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$4,200,000
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Sqft: 3386
$/Sqft: $1,240

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$5,050,000
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827 Rubis Dr

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$3,300,000
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Sqft: 2488
$/Sqft: $1,326

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$3,780,000
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514 Inverness Way

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$3,250,000
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$/Sqft: $1,196

1335 Bedford Ave

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1293 Bedford Ct

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$/Sqft: $1,474

1617 Goldfinch Way

Sold
$4,025,000
Sold: 2026-06-29
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Sqft: 3000
$/Sqft: $1,342

1296 Albion Ct

Sold
$4,075,000
Sold: 2026-06-22
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Sqft: 3074
$/Sqft: $1,326

1636 Mariani Dr

Sold
$3,400,000
Sold: 2026-06-02
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Sqft: 2522
$/Sqft: $1,348