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ActiveSingle Family

$2,548,000

18859 Montalvo Oaks Cir, Monte Sereno 95030

Beds3
Baths2.5
Sqft1,715
DOM29
No Photos Available

AddressIntel AI Briefing

This newer townhome-style property is a prime example of a stable condo-like investment, offering excellent value compared to recent neighborhood sales. Investors should focus on high rental yield and long-term appreciation rather than any structural redevelopment, as land constraints and zoning preclude addition plays.

Property Permit History

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

Recent Neighborhood Remodeling (Monte Sereno)

Parcel & Zoning Info

APN51061010
Official Lot Sqft2,178
Zoning Code--
SB 9 StatusBlocked
SB 9 Block Reasons
Lot below 2,400 sqft (no split)
Development Blockers
Liquefaction
Unlock Pathways
Ministerial ADU
Entitlement RiskLow (6/100)

ADU Potential

Feasibility Score16/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size500 sqft
Existing Coverage78.7%

Wide & shallow · Corner lot · ~47 ft frontage × 54 ft deep, limited depth, an ADU likely sits beside the house rather than behind it. 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 Score4/100
ClassBuilt out
FAR Utilization197% of allowed
Buildable Headroom+0 sqft

Existing home already uses most of the allowable floor area, little expansion headroom. Zoning allows roughly 871 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: conservative default (0.40 FAR — city not individually curated) (as of 2026-06-30). Verify FAR, coverage, setbacks, and height with the local planning dept.

Hazard Snapshot

Flood Zone

D
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

Daves Avenue Elementary

Los Gatos Union Elementary

1.1 miles away
Middle School

Redwood Middle

Saratoga Union Elementary

1.9 miles away
High School

Los Gatos High

Los Gatos-Saratoga Union High

1.8 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

52/100

Based on recent sales velocity and local demand in 95030.

Flippability Score

35/100

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

Bidding War Prob.

6%

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.

Zoning allows roughly 871 sqft here, less than the 1,715 sqft standing today, so a compliant rebuild would be smaller than the existing house. We don't quote a return on this one. Demolishing generally forfeits the existing non-conforming floor area, so treat it as a remodel or check the local code for what it lets you rebuild.

Median of 8 recent single-family sales in Monte Sereno (95030): $1,674/sqft, plus 5% because new houses sold at a median 1.07x their comps across 239 real rebuilds. Sized within 25% of the 1,700 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$495,000
New Build900 sqft
Total Capital Required$3,218,000
Estimated Resale (ARV)$1,582,200
Cost of Sale (5%)-$79,110
Carry (33mo @ 7%)-$554,978
Net Proceeds$948,112

Projected Profit

-$2,269,888
-70.5% ROI

Warning: Project is mathematically underwater.

Recent Comparables (Monte Sereno 95030)

Sized to the modelled 1,700 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

18867 Montalvo Oaks Cir

Sold
$2,812,000
Sold: 2026-07-09
Lot: 2,582
Sqft: 2111
$/Sqft: $1,332

17981 Rose Ct

Sold
$3,528,000
Sold: 2026-04-09
Lot: 9,555
Sqft: 1895
$/Sqft: $1,862

18220 Daves Ave

Sold
$4,050,000
Sold: 2025-11-20
Lot: 33,036
Sqft: 1760
$/Sqft: $2,301

15420 Karl Ave

Sold
$4,500,000
Sold: 2025-10-21
Lot: 42,302
Sqft: 1996
$/Sqft: $2,255

18855 Montalvo Oaks Cir

Sold
$2,680,000
Sold: 2025-10-01
Lot: 2,517
Sqft: 1728
$/Sqft: $1,551

15415 Winchester Blvd

Sold
$2,810,000
Sold: 2025-07-10
Lot: 8,586
Sqft: 1758
$/Sqft: $1,598

18825 Montalvo Oaks Cir

Sold
$3,000,000
Sold: 2025-06-25
Lot: 2,627
Sqft: 1715
$/Sqft: $1,749

17705 Vista Ave

Sold
$3,050,000
Sold: 2025-05-21
Lot: 7,380
Sqft: 1993
$/Sqft: $1,530