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Activemulti_family

$2,595,000

1000O Neill St, Belmont 94002

Beds6
Baths4
Sqft3,023
DOM167
No Photos Available

AddressIntel AI Briefing

A healthy pricing spread is significantly weighed down by dual hazard risks in Flood Zone A and Liquefaction. Structural engineering and insurance costs will limit overall ROI.

Property Permit History

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

Recent Neighborhood Remodeling (Belmont)

2026-10-20 • 2506 RALSTON AVE
ALTERATION - WINDOWS
--ACTIVE
2026-10-20 • 1308 TALBRYN DR
ALTERATION - ALTERATION
--IN REVIEW
2026-10-19 • 1039 CONTINENTALS WAY
ALTERATION - ALTERATION
--ACTIVE
2026-10-17 • 2129 PULLMAN AVE
ALTERATION - ALTERATION
--IN REVIEW
2026-10-15 • 2824 BENSON WAY
ALTERATION - INTERIOR REMODEL
--IN REVIEW
2026-10-14 • 1771 VALLEY VIEW AVE
ALTERATION - INTERIOR REMODEL
--ACTIVE

Parcel & Zoning Info

APN045261030
Official Lot Sqft6,828
Zoning CodeNO DATA ASSIGNED
SB 9 StatusN/A

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.

Hazard Snapshot

Flood Zone

A
Special flood hazard area; insurance may be required.

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. 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

Nesbit Elementary

Belmont-Redwood Shores Elementary

0.5 miles away
Middle School

Tierra Linda Middle

San Carlos Elementary

0.9 miles away
High School

Carlmont High

Sequoia Union High

1.1 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

64/100

Based on recent sales velocity and local demand in 94002.

Flippability Score

60/100

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 5 recent multi-family sales in Belmont (94002): $639/sqft, plus 5% because new houses sold at a median 1.07x their comps across 239 real rebuilds. Sized within 50% of the 4,500 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$2,475,000
New Build4,500 sqft
Total Capital Required$5,245,000
Estimated Resale (ARV)$3,019,500
Cost of Sale (5%)-$150,975
Carry (33mo @ 7%)-$754,600
Net Proceeds$2,113,925

Projected Profit

-$3,131,075
-59.7% ROI

Warning: Project is mathematically underwater.

Recent Comparables (Belmont 94002)

Sized to the modelled 4,500 sqft build: sales within 50% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

885 Laurel Ave

Sold
$1,600,000
Sold: 2026-07-30
Lot: 4,000
Sqft: 2502
$/Sqft: $639

910-912 Academy Ave

Sold
$1,968,000
Sold: 2026-05-08
Lot: 5,000
Sqft: 2363
$/Sqft: $833

910-912 Academy Ave

Sold
$1,968,000
Sold: 2026-05-08
Lot: 5,000
Sqft: 2500
$/Sqft: $787

655 Middle Rd

Sold
$1,710,000
Sold: 2025-04-08
Lot: 6,420
Sqft: 3360
$/Sqft: $509

909 Villa Ave

Sold
$2,125,000
Sold: 2025-01-07
Lot: 11,000
Sqft: 3738
$/Sqft: $568