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ActiveSingle Family

$1,498,000

817 Winchester Dr, Burlingame 94010

Beds2
Baths1
Sqft1,210
DOM10
No Photos Available

AddressIntel AI Briefing

The optimal play is a teardown-and-mansionize development to build a new 2,904 sqft estate on this massive 7,259 sqft lot. Zero hazard blockers exist to impede construction, and strong local permit history points to high market demand.

Property Permit History

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

Recent Neighborhood Remodeling (Burlingame)

2026-08-211460 BALBOA AVE
RESIDENTIAL REROOF - SINGLE FAMILY OR DUPLEX
--ACTIVE
2026-08-21824 EDGEHILL DR
RESIDENTIAL REROOF - SINGLE FAMILY OR DUPLEX
--ACTIVE
2026-08-20110 PARK RD CONDO 101
RESIDENTIAL ALTERATION - OTHER
--ACTIVE
2026-08-191035 PALOMA AVE
RESIDENTIAL ALTERATION - REMODEL
--ACTIVE
2026-08-14112 CRESCENT AVE
RESIDENTIAL NONSTRUCTURAL KITCHEN OR BATH REMODEL
--ACTIVE
2026-08-131080 CAROLAN AVE
RESIDENTIAL ALTERATION - REMODEL
--ACTIVE

Parcel & Zoning Info

APN029072050
Official Lot Sqft7,259
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 Coverage16.7%

Standard lot · Corner lot · ~80 ft frontage × 118 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 Score66/100
ClassTeardown candidate
FAR Utilization42% of allowed
Buildable Headroom+1,694 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 2,904 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

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

McKinley Elementary

Burlingame Elementary

0.6 miles away
Middle School

Crocker Middle

Hillsborough City Elementary

1.6 miles away
High School

Burlingame High

San Mateo Union High

0.3 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

95/100

Based on recent sales velocity and local demand in 94010.

Flippability Score

82/100

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

Bidding War Prob.

53%

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 2,904 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 12 recent single-family sales in Burlingame (94010): $1,551/sqft. Sized within 25% of the 2,900 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$1,595,000
New Build2,900 sqft
Total Capital Required$3,268,000
Estimated Resale (ARV)$4,497,900
Cost of Sale (5%)-$224,895
Net Proceeds$4,273,005

Projected Profit

$1,005,005
30.8% ROI

Recent Comparables (Burlingame 94010)

Sized to the modelled 2,900 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

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