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ActiveMulti-Family

$1,150,000

335 A St, South San Francisco 94080

Beds3
Baths3
Sqft2,070
DOM57
No Photos Available

AddressIntel AI Briefing

Since the existing structure fully maximizes the lot's buildable footprint, major additions or detached ADU builds are blocked. The optimal play is a comprehensive cosmetic remodel, capitalizing on the active solar permit to market a highly energy-efficient home. This strategy minimizes construction complexity while maximizing retail appeal.

Property Permit History

DateProject TypeStatusValuationContractor
2026-08-19NREL SOLARAPP (PHOTOVOLTAIC) - PHOTOVOLTAICISSUED--Unknown

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

APN014034110
Official Lot Sqft2,500
Zoning CodeNO DATA ASSIGNED
SB 9 StatusN/A

Seller Motivation

Motivation Score12/100
Low motivation
45+ 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.

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

Los Cerritos Elementary

South San Francisco Unified

0.1 miles away
Middle School

Parkway Heights Middle

South San Francisco Unified

0.9 miles away
High School

South San Francisco High

South San Francisco Unified

0.2 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

78/100

Based on recent sales velocity and local demand in 94080.

Flippability Score

55/100

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.

Median of 10 recent multi-family sales in South San Francisco (94080): $374/sqft, plus 5% because new houses sold at a median 1.07x their comps across 239 real rebuilds. Sized within 25% of the 3,100 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$1,705,000
New Build3,100 sqft
Total Capital Required$3,030,000
Estimated Resale (ARV)$1,218,300
Cost of Sale (5%)-$60,915
Carry (33mo @ 7%)-$402,325
Net Proceeds$755,060

Projected Profit

-$2,274,940
-75.1% ROI

Warning: Project is mathematically underwater.

Recent Comparables (South San Francisco 94080)

Sized to the modelled 3,100 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

324 Railroad Ave

Sold
$1,100,000
Sold: 2026-06-15
Lot: 3,001
Sqft: 3206
$/Sqft: $343

760 Grand Ave

Sold
$1,200,000
Sold: 2026-04-07
Lot: 5,040
Sqft: 3120
$/Sqft: $385

233 Aspen Ave

Sold
$1,000,000
Sold: 2026-04-07
Lot: 3,500
Sqft: 2685
$/Sqft: $372

641 Commercial Ave

Sold
$930,000
Sold: 2026-03-05
Lot: 6,000
Sqft: 3660
$/Sqft: $254

214 Juniper Ave

Sold
$675,000
Sold: 2025-12-12
Lot: 5,223
Sqft: 2729
$/Sqft: $247

450 Baden Ave

Sold
$1,325,000
Sold: 2025-09-18
Lot: 7,000
Sqft: 2550
$/Sqft: $520

33 Lewis Ave

Sold
$938,000
Sold: 2025-08-21
Lot: 5,500
Sqft: 2560
$/Sqft: $366

723 Olive Ave

Sold
$1,923,000
Sold: 2025-04-07
Lot: 3,001
Sqft: 2883
$/Sqft: $667

30 Gardiner Ave

Sold
$1,750,000
Sold: 2025-01-31
Lot: 5,253
Sqft: 2610
$/Sqft: $670

303 California Ave

Sold
$1,330,000
Sold: 2024-12-03
Lot: 3,518
Sqft: 3536
$/Sqft: $376