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ActiveMulti-Family

$1,650,000

9-11 Seville Way, San Mateo 94402

Beds2
Baths2
Sqft1,720
DOM12
No Photos Available

AddressIntel AI Briefing

A stealth density: primary + ADU + JADU strategy is highly restricted because SB 9 is not applicable to this parcel. The low size-matched resale of $612/sqft results in a deeply negative developer ROI, rendering a teardown entirely unfeasible. Investors should focus on a basic cosmetic remodel to salvage value rather than a major structural play.

Property Permit History

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

Recent Neighborhood Remodeling (San Mateo)

2026-08-211241 SHAFTER ST SAN MATEO 94402-2901 CA
Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat)
$22,000Issued
2026-08-211133 WAYNE WAY SAN MATEO 94403-1564 CA
Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat)
$30,000Issued
2026-08-211241 SHAFTER ST SAN MATEO 94402-2901 CA
Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat)
$35,000Issued
2026-08-21510 BOREL AVE SAN MATEO 94402-3406 CA
Single Family (Alteration/Repair) - Alter
$28,882Issued
2026-08-202614 ALAMEDA DE LAS PULGAS SAN MATEO 94403-2652 CA
Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat)
$7,000Issued
2026-08-20406 AVILA RD SAN MATEO 94402-2822 CA
Single Family (Addition) - Add/Alter
$91,714Issued

Parcel & Zoning Info

APN034262160
Official Lot Sqft5,455
Zoning CodeNO DATA ASSIGNED
SB 9 StatusN/A

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

Sunnybrae Elementary

San Mateo-Foster City

0.5 miles away
Middle School

Borel Middle

San Mateo-Foster City

0.5 miles away
High School

Aragon High

San Mateo Union High

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

77/100

Based on recent sales velocity and local demand in 94402.

Flippability Score

15/100

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

Bidding War Prob.

60%

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 4 recent multi-family sales in San Mateo (94402): $610/sqft. Sized within 25% of the 2,600 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$1,430,000
New Build2,600 sqft
Total Capital Required$3,255,000
Estimated Resale (ARV)$1,586,000
Cost of Sale (5%)-$79,300
Net Proceeds$1,506,700

Projected Profit

-$1,748,300
-53.7% ROI

Warning: Project is mathematically underwater.

Recent Comparables (San Mateo 94402)

Sized to the modelled 2,600 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

1017 10th Ave

Sold
$1,700,000
Sold: 2026-06-19
Lot: 4,800
Sqft: 2799
$/Sqft: $607

1028 S Idaho St

Sold
$1,543,000
Sold: 2026-05-14
Lot: 5,400
Sqft: 2097
$/Sqft: $736

906-908 Haddon Dr

Sold
$1,592,500
Sold: 2026-03-09
Lot: 4,620
Sqft: 2600
$/Sqft: $613

840 9th Ave

Sold
$1,100,000
Sold: 2026-03-07
Lot: 5,146
Sqft: 2239
$/Sqft: $491