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ActiveSingle Family

$1,198,000

2637 Bantry Ct, South San Francisco 94080

Beds3
Baths3.5
Sqft1,536
DOM187
No Photos Available

AddressIntel AI Briefing

A stealth density play incorporating a primary residence, ADU, and JADU is heavily restricted on this property due to the active fault zone blocker and extremely tiny lot footprint. Given the tight spread, a standard cosmetic renovation to preserve the existing structure is the safest qualitative play. This avoids triggering complex engineering requirements and high construction costs.

Property Permit History

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

Recent Neighborhood Remodeling (South San Francisco)

2026-10-21 • 121 RAMONA AVE
Residential Building - Alteration
--Inspection
2026-10-21 • 718 PARK WAY
Building Permit Revision
--Closed
2026-10-20 • 144 COUNTRY CLUB DR
Residential Building - Alteration
--Inspection
2026-10-20 • 140 SAN FELIPE AVE
Sewer Lateral
--Inspection
2026-10-20 • 251 RAINIER AVE
Sewer Lateral
--Inspection
2026-10-19 • 717 SOUTHWOOD DR
Residential Building - Addition
--Inspection

Parcel & Zoning Info

APN091850210
Official Lot Sqft1,261
Zoning CodeNO DATA ASSIGNED
SB 9 StatusBlocked
SB 9 Block Reasons
Alquist-Priolo Fault Zone Lot below 2,400 sqft (no split)
Development Blockers
Fault Zone
Unlock Pathways
Ministerial ADU
Entitlement RiskLow (15/100)

ADU Potential

Feasibility Score8/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size500 sqft
Existing Coverage121.8%

Flag / irregular · ~41 ft frontage × 65 ft deep, a tucked-away rear unit is very private; access is typically via the pole driveway.

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.

Seller Motivation

Motivation Score30/100
Some motivation
90+ days on market

Inferred from days on market and listing-description language (e.g. "as-is", "estate sale", "motivated seller"). A screening heuristic for likely negotiability, not a statement about the seller's circumstances.

Redevelopment Potential

Redevelopment Score4/100
ClassBuilt out
FAR Utilization305% of allowed
Buildable Headroom+0 sqft

Existing home already uses most of the allowable floor area, little expansion headroom. Zoning allows roughly 504 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

Yes
Within an Alquist-Priolo earthquake fault zone. Significant building restrictions apply.

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

Skyline Elementary

South San Francisco Unified

0.7 miles away
Middle School

Westborough Middle

South San Francisco Unified

0.1 miles away
High School

Oceana High

Jefferson Union High

1.4 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

78/100

Based on recent sales velocity and local demand in 94080.

Flippability Score

20/100

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

Bidding War Prob.

1%

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 504 sqft here, less than the 1,536 sqft standing today, so a compliant rebuild would be smaller than the existing house. We don't quote a return on this one. Demolishing generally forfeits the existing non-conforming floor area, so treat it as a remodel or check the local code for what it lets you rebuild.

Median of 12 recent single-family sales in South San Francisco (94080): $1,014/sqft, plus 5% because new houses sold at a median 1.07x their comps across 239 real rebuilds. Sized within 25% of the 1,500 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$275,000
New Build500 sqft
Total Capital Required$1,648,000
Estimated Resale (ARV)$532,500
Cost of Sale (5%)-$26,625
Carry (33mo @ 7%)-$273,928
Net Proceeds$231,947

Projected Profit

-$1,416,053
-85.9% ROI

Warning: Project is mathematically underwater.

Recent Comparables (South San Francisco 94080)

Sized to the modelled 1,500 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

12 Graystone Dr

Sold
$1,300,000
Sold: 2026-10-19
Lot: 4,884
Sqft: 1270
$/Sqft: $1,024

26 Cymbidium Cir

Sold
$1,742,500
Sold: 2026-10-16
Lot: 3,830
Sqft: 1610
$/Sqft: $1,082

366 Altamont Dr

Sold
$1,565,000
Sold: 2026-10-13
Lot: 4,500
Sqft: 1559
$/Sqft: $1,004

343 Alta Mesa Dr

Sold
$1,480,000
Sold: 2026-10-08
Lot: 5,401
Sqft: 1870
$/Sqft: $791

326 Armour Ave

Sold
$1,501,500
Sold: 2026-09-28
Lot: 5,144
Sqft: 1790
$/Sqft: $839

449 Mariposa Dr

Sold
$1,510,000
Sold: 2026-09-28
Lot: 5,880
Sqft: 1300
$/Sqft: $1,162

3906 Reston Ct

Sold
$1,278,000
Sold: 2026-09-28
Lot: 2,500
Sqft: 1500
$/Sqft: $852

2700 Wexford Ave

Sold
$1,600,000
Sold: 2026-09-22
Lot: 5,441
Sqft: 1500
$/Sqft: $1,067

129 Drake Ave

Sold
$1,200,000
Sold: 2026-09-21
Lot: 4,000
Sqft: 1126
$/Sqft: $1,066

169 Cymbidium Cir

Sold
$1,730,000
Sold: 2026-09-18
Lot: 4,230
Sqft: 1610
$/Sqft: $1,075

227 Rockwood Dr

Sold
$1,240,000
Sold: 2026-09-18
Lot: 4,524
Sqft: 1390
$/Sqft: $892

217 Pinehurst Way

Sold
$1,036,000
Sold: 2026-09-18
Lot: 4,770
Sqft: 1250
$/Sqft: $829