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ActiveSingle Family

$1,810,000

1080 Judson St, Belmont 94002

Beds3
Baths1
Sqft1,310
DOM8
No Photos Available

AddressIntel AI Briefing

The moderate coverage on this 1947 parcel makes a stealth density play of adding an ADU and JADU highly attractive. Developers can also execute an SB 9 lot split, though liquefaction issues will mandate advanced seismic engineering.

Property Permit History

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

Recent Neighborhood Remodeling (Belmont)

2026-09-04806 ANITA AVE
ALTERATION - INTERIOR REMODEL
--APPROVED
2026-09-044112 MARSTEN AVE
ALTERATION - RETAINING WALL
--IN REVIEW
2026-09-033200 UPPER LOCK AVE
ALTERATION - DECK
--ACTIVE
2026-09-022 LOMA VISTA LN
ALTERATION - ALTERATION
--ACTIVE
2026-09-029 CAMINO VISTA CT
ALTERATION - ALTERATION
--ACTIVE
2026-08-281641 SIXTH AVE
ALTERATION - ALTERATION
--APPROVED

Parcel & Zoning Info

APN040342070
Official Lot Sqft5,001
Zoning CodeNO DATA ASSIGNED
SB 9 StatusLikely · up to 4 units
SB 9 Block Reasons No SB 9 disqualifiers found
Development Blockers
Liquefaction
Unlock Pathways
Ministerial ADU Ministerial SB 9 Density Bonus
Entitlement RiskLow (0/100)

ADU Potential

Feasibility Score82/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size1,200 sqft
Existing Coverage26.2%

Flag / irregular · Corner lot · ~103 ft frontage × 104 ft deep, a tucked-away rear unit is very private; access is typically via the pole driveway. 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 Score47/100
ClassExpansion room
FAR Utilization65% of allowed
Buildable Headroom+691 sqft

Meaningful unused floor-area headroom under current zoning, room to add square footage. Zoning allows roughly 2,001 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: Belmont Zoning Ordinance 4.2.3(d) Table 5 (Lot Size/Intensity) as a CAP on the default estimate; Table 4 slope FAR NOT applied, no per-parcel slope available (as of 2026-09-03). 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

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.

Nearby Public Schools

Elementary School

Nesbit Elementary

Belmont-Redwood Shores Elementary

0.3 miles away
Middle School

Tierra Linda Middle

San Carlos Elementary

1.4 miles away
High School

Design Tech 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

67/100

Based on recent sales velocity and local demand in 94002.

Flippability Score

65/100

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

Bidding War Prob.

40%

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 2,001 sqft from a conservative 0.40 FAR approximation, a starting point and not a zoning answer. Check the local code before you rely on it.

Median of 12 recent single-family sales in Belmont (94002): $1,243/sqft. Sized within 25% of the 2,000 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$1,100,000
New Build2,000 sqft
Total Capital Required$3,085,000
Estimated Resale (ARV)$2,486,000
Cost of Sale (5%)-$124,300
Net Proceeds$2,361,700

Projected Profit

-$723,300
-23.4% ROI

Warning: Project is mathematically underwater.

Recent Comparables (Belmont 94002)

Sized to the modelled 2,000 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

2715 Belmont Canyon Rd

Sold
$2,715,000
Sold: 2026-09-01
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Sqft: 1960
$/Sqft: $1,385

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$/Sqft: $1,215

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Sqft: 2500
$/Sqft: $1,390

3416 Plateau Dr

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$2,473,000
Sold: 2026-08-06
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Sqft: 1760
$/Sqft: $1,405

1348 Paloma Ave

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3307 Bay Ct

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2326 Buena Vista Ave

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2045 Mezes Ave

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Sold: 2026-06-30
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$/Sqft: $1,584

708 Alameda De Las Pulgas

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