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ActiveSingle Family

$2,995,000

1239 Talbryn Dr, Belmont 94002

Beds4
Baths3.5
Sqft2,551
DOM0
No Photos Available

AddressIntel AI Briefing

While the massive 26,387 square foot lot suggests immense potential, the active landslide hazard zone serves as a major construction blocker that dampens teardown prospects. The most viable strategy is a stealth density play using low-impact ADU additions that avoid heavy geotechnical disruption. This pathway permits density expansion while preserving the main mid-century structure.

Property Permit History

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

Recent Neighborhood Remodeling (Belmont)

2026-09-175 CHRISTIAN CT
ALTERATION - RETAINING WALL
--APPROVED
2026-09-177 CHRISTIAN CT
ALTERATION - RETAINING WALL
--ACTIVE
2026-09-174120 MARSTEN AVE
ALTERATION - INTERIOR REMODEL
--ACTIVE
2026-09-161307 NOTRE DAME AVE
ALTERATION - DECK
--IN REVIEW
2026-09-162635 PONCE AVE
ALTERATION - WINDOWS
--APPROVED
2026-09-161012 VILLA AVE
ALTERATION - ALTERATION
--ACTIVE

Parcel & Zoning Info

APN045202220
Official Lot Sqft26,387
Zoning CodeNO DATA ASSIGNED
SB 9 StatusLikely · up to 4 units
SB 9 Block Reasons No SB 9 disqualifiers found
Development Blockers
Landslide
Unlock Pathways
Ministerial ADU Ministerial SB 9 Density Bonus
Entitlement RiskLow (0/100)

ADU Potential

Feasibility Score94/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size1,200 sqft
Existing Coverage9.7%

Flag / irregular · ~195 ft frontage × 342 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.

Redevelopment Potential

Redevelopment Score63/100
ClassExpansion room
FAR Utilization57% of allowed
Buildable Headroom+1,949 sqft

Meaningful unused floor-area headroom under current zoning, room to add square footage. Zoning allows roughly 4,500 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

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

San Carlos Charter Learning Center

San Carlos Elementary

0.6 miles away
Middle School

Tierra Linda Middle

San Carlos Elementary

0.7 miles away
High School

Carlmont High

Sequoia Union High

0.9 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

68/100

Based on recent sales velocity and local demand in 94002.

Flippability Score

45/100

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

Bidding War Prob.

37%

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 4,500 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 6 recent single-family sales in Belmont (94002): $1,171/sqft. Sized within 25% 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.

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$2,475,000
New Build4,500 sqft
Total Capital Required$5,645,000
Estimated Resale (ARV)$5,269,500
Cost of Sale (5%)-$263,475
Net Proceeds$5,006,025

Projected Profit

-$638,975
-11.3% ROI

Warning: Project is mathematically underwater.

Recent Comparables (Belmont 94002)

Sized to the modelled 4,500 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

10 Notre Dame Pl

Sold
$7,000,000
Sold: 2026-08-27
Lot: 29,671
Sqft: 4035
$/Sqft: $1,735

2719 All View Way

Sold
$3,800,000
Sold: 2026-08-24
Lot: 11,980
Sqft: 3448
$/Sqft: $1,102

2009 Bishop Rd

Sold
$5,600,000
Sold: 2026-06-22
Lot: 29,098
Sqft: 4000
$/Sqft: $1,400

2741 Waltham Cross St

Sold
$4,250,000
Sold: 2026-06-11
Lot: 10,269
Sqft: 3427
$/Sqft: $1,240

1597 Molitor Rd

Sold
$2,580,000
Sold: 2025-11-24
Lot: 6,400
Sqft: 3910
$/Sqft: $660

905 South Rd

Sold
$3,650,000
Sold: 2025-11-05
Lot: 10,999
Sqft: 3740
$/Sqft: $976