Back to Search
ActiveSingle Family

$1,398,000

581 Worley Ave, Sunnyvale 94085

Beds2
Baths1
Sqft854
DOM4
No Photos Available

AddressIntel AI Briefing

An SB 9 lot split into multiple units represents the highest-value play given the property's low lot coverage and old, small existing footprint. Developers must budget for robust structural engineering to mitigate the local liquefaction hazard.

Property Permit History

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

Recent Neighborhood Remodeling (Sunnyvale)

2026-08-091286 PRESCOTT Sunnyvale CA 94089
Hvac
--ISSUED
2026-08-091209 VAN DYCK Sunnyvale CA 94087
Hvac
--ISSUED
2026-08-07559 ALBERTA Sunnyvale CA 94087
Solar
$14,695ISSUED
2026-08-07464 IVES Sunnyvale CA 94087
Electrical
$3,500ISSUED
2026-08-07924 ALMADEN Sunnyvale CA 94085
Hvac
$16,174ISSUED
2026-08-071578 MEADOWLARK Sunnyvale CA 94087
Roofing
$22,000ISSUED

Parcel & Zoning Info

APN20415020
Official Lot Sqft4,792
Zoning Code--
SB 9 StatusLikely · up to 4 units
SB 9 Block Reasons No SB 9 disqualifiers found
Development Blockers
Liquefaction
Unlock Pathways
Ministerial ADU Ministerial SB 9 Density Bonus
Entitlement RiskLow (0/100)

ADU Potential

Feasibility Score82/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size1,200 sqft
Existing Coverage17.8%

Flag / irregular · Corner lot · ~76 ft frontage × 108 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 Score60/100
ClassTeardown candidate
FAR Utilization40% of allowed
Buildable Headroom+1,302 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 2,156 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

Yes
In a mapped liquefaction zone. May require specialized foundation engineering.

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

Bishop Elementary

Sunnyvale

0.4 miles away
Middle School

Columbia Middle

Sunnyvale

0.4 miles away
High School

Mission Early College High

Santa Clara Unified

2.0 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

65/100

Based on recent sales velocity and local demand in 94085.

Flippability Score

78/100

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

Bidding War Prob.

35%

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 2,156 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 (94085): $1,143/sqft. Sized within 25% of the 2,200 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.

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.

Hard Costs$1,210,000
New Build2,200 sqft
Total Capital Required$2,783,000
Estimated Resale (ARV)$2,514,600
Cost of Sale (5%)-$125,730
Net Proceeds$2,388,870

Projected Profit

-$394,130
-14.2% ROI

Warning: Project is mathematically underwater.

Recent Comparables (Sunnyvale 94085)

Sized to the modelled 2,200 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

552 Borregas Ave

Sold
$1,960,000
Sold: 2026-08-21
Lot: 6,334
Sqft: 2050
$/Sqft: $956

375 Stowell Ave

Sold
$2,400,000
Sold: 2026-07-07
Lot: 5,200
Sqft: 1694
$/Sqft: $1,417

605 N Bayview Ave

Sold
$2,755,000
Sold: 2026-06-04
Lot: 7,080
Sqft: 2257
$/Sqft: $1,221

225 W Ferndale Ave

Sold
$2,050,000
Sold: 2026-05-11
Lot: 3,798
Sqft: 1684
$/Sqft: $1,217

362 Stowell Ave

Sold
$2,748,000
Sold: 2026-05-05
Lot: 5,200
Sqft: 2212
$/Sqft: $1,242

714 Santa Rosa St

Sold
$1,725,000
Sold: 2026-04-23
Lot: 5,200
Sqft: 1754
$/Sqft: $983

224 Eureka Ct

Sold
$2,628,000
Sold: 2026-04-23
Lot: 7,800
Sqft: 1841
$/Sqft: $1,427

248 Eureka Ct

Sold
$1,900,000
Sold: 2026-04-13
Lot: 5,750
Sqft: 1960
$/Sqft: $969

644 Johanna Ave

Sold
$2,680,000
Sold: 2026-04-08
Lot: 6,240
Sqft: 2696
$/Sqft: $994

731 San Pablo Ave

Sold
$1,950,000
Sold: 2026-02-19
Lot: 5,101
Sqft: 1801
$/Sqft: $1,083

560 Madrone Ave

Sold
$2,820,000
Sold: 2026-01-28
Lot: 6,377
Sqft: 2342
$/Sqft: $1,204

148 W Maude Ave

Sold
$1,650,000
Sold: 2025-12-15
Lot: 5,011
Sqft: 1652
$/Sqft: $999