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ActiveSingle Family

$6,300,000

340 Palo Alto Ave, Palo Alto 94301

Beds2
Baths1
Sqft1,120
DOM92
No Photos Available

AddressIntel AI Briefing

This 1910 structure is a classic teardown-and-mansionize candidate due to its tiny size and low lot coverage, but the $6.3 million asking price severely limits ROI. An alternative SB 9 lot split into multiple units is technically feasible but faces a liquefaction hazard blocker that will inflate foundation engineering costs.

Property Permit History

DateProject TypeStatusValuationContractor
2022-12-09Expired$3,700RANDO AAA HVAC INC DBA AAA FURNACE AND AIR CONDITIONING CO
2020-08-12Finaled$16,993SEMPER SOLARIS CONSTRUCTION INC
2020-02-19Finaled$5,200DISCOUNT PLUMBING AND HEATING INC

Recent Neighborhood Remodeling (Palo Alto)

2026-10-21 • 180 EL CAMINO REAL, STE D87, PALO ALTO CA 94304
Revision-Building Permit
--In Plan Check
2026-10-21 • 725 GUINDA ST, PALO ALTO CA 94301
Roof: Like for like re-roof, only one structure per permit (detached single-family and duplex only, non-historic property)
--Permit Issued
2026-10-21 • 180 EL CAMINO REAL, STE AA1070, PALO ALTO CA 94304
Project - Building Permit
--In Plan Check
2026-10-21 • 2704 LOUIS RD, PALO ALTO CA 94303
Revision-Building Permit
--In Plan Check
2026-10-21 • 176 WAVERLEY ST, PALO ALTO CA 94301
Project - Building Permit
--Pending Resubmittal
2026-10-21 • 2147 BELLVIEW DR, PALO ALTO CA 94303
Project - Building Permit
--Submitted

Parcel & Zoning Info

APN12012045
Official Lot Sqft6,970
Zoning CodeR-1
SB 9 StatusEligible · 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 Score94/100
Max ADU Units2 (ADU + JADU)
Est. ADU Size1,200 sqft
Existing Coverage16.1%

Flag / irregular · Corner lot · ~123 ft frontage × 131 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.

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.

Redevelopment Potential

Redevelopment Score66/100
ClassTeardown candidate
FAR Utilization39% of allowed
Buildable Headroom+1,721 sqft

Small, older home using a low share of the allowable building envelope on a sizable lot, a scrape-and-rebuild or major-expansion play. Zoning allows roughly 2,841 sqft of gross floor area on this lot.

Screening estimate comparing existing living area to the city's single-family floor-area limit. FAR rule curated from current municipal code. Source: PAMC 18.12.040 Table 2; max house size 6,000 sqft (as of 2026-06-30). 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. 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

Addison Elementary

Palo Alto Unified

0.9 miles away
Middle School

Hillview Middle

Menlo Park City Elementary

1.7 miles away
High School

Menlo-Atherton 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

69/100

Based on recent sales velocity and local demand in 94301.

Flippability Score

20/100

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

Bidding War Prob.

35%

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 2,841 sqft on this lot, and the default builds to that envelope. The FAR figure is a discretionary-review trigger, not a hard cap.

Median of 12 recent single-family sales in Palo Alto (94301): $2,387/sqft, plus 5% because new houses sold at a median 1.07x their comps across 239 real rebuilds. Sized within 25% of the 2,800 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$1,540,000
New Build2,800 sqft
Total Capital Required$8,015,000
Estimated Resale (ARV)$7,016,800
Cost of Sale (5%)-$350,840
Carry (33mo @ 7%)-$1,377,819
Net Proceeds$5,288,141

Projected Profit

-$2,726,859
-34.0% ROI

Warning: Project is mathematically underwater.

Recent Comparables (Palo Alto 94301)

Sized to the modelled 2,800 sqft build: sales within 25% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.

1301 Bryant St

Sold
$5,998,000
Sold: 2026-10-21
Lot: 16,020
Sqft: 2404
$/Sqft: $2,495

1432 Hamilton Ave

Sold
$6,200,000
Sold: 2026-10-20
Lot: 7,500
Sqft: 2720
$/Sqft: $2,279

834-836 Addison Ave

Sold
$4,400,000
Sold: 2026-10-13
Lot: 10,000
Sqft: 2136
$/Sqft: $2,060

337 Tennyson Ave

Sold
$7,700,000
Sold: 2026-10-09
Lot: 10,000
Sqft: 2388
$/Sqft: $3,224

872 Waverley St

Sold
$4,580,000
Sold: 2026-10-05
Lot: 4,372
Sqft: 2385
$/Sqft: $1,920

2325 Emerson St

Sold
$4,350,000
Sold: 2026-10-05
Lot: 5,625
Sqft: 2182
$/Sqft: $1,994

1125 Guinda St

Sold
$6,500,000
Sold: 2026-09-24
Lot: 7,500
Sqft: 2900
$/Sqft: $2,241

1800 Waverley St

Sold
$7,500,000
Sold: 2026-09-11
Lot: 9,600
Sqft: 2965
$/Sqft: $2,530

2101 Middlefield Rd

Sold
$4,789,000
Sold: 2026-09-11
Lot: 7,497
Sqft: 2834
$/Sqft: $1,690

1353 Martin Ave

Sold
$9,800,000
Sold: 2026-08-11
Lot: 8,395
Sqft: 3117
$/Sqft: $3,144

2001 Bryant St

Sold
$21,775,000
Sold: 2026-07-20
Lot: 31,744
Sqft: 3061
$/Sqft: $7,114

771 Center Dr

Sold
$6,510,000
Sold: 2026-07-20
Lot: 10,500
Sqft: 2391
$/Sqft: $2,723