$2,398,000
1710-1712 Gum St, San Mateo 94402
AddressIntel AI Briefing
This newer construction duplex has limited upside due to SB 9 and ADU pathways being completely inapplicable or unknown. The optimal play is a simple buy-and-hold strategy or a light cosmetic value-add to maximize current market rents. Structural expansion is restricted, making it a defensive, cash-flow-driven investment rather than a major development project.
Property Permit History
Recent Neighborhood Remodeling (San Mateo)
Parcel & Zoning Info
Hazard Snapshot
Flood Zone
Fire Severity
Liquefaction
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
Sunnybrae Elementary
San Mateo-Foster City
Borel Middle
San Mateo-Foster City
Aragon High
San Mateo Union High
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
79/100
Based on recent sales velocity and local demand in 94402.
Flippability Score
50/100
Measures neighborhood renovation density vs. recent permits on this property.
Bidding War Prob.
62%
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 San Mateo (94402): $497/sqft. Sized within 50% of the 4,400 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.
Projected Profit
Warning: Project is mathematically underwater.
Recent Comparables (San Mateo 94402)
Sized to the modelled 4,400 sqft build: sales within 50% of it. Smaller houses sell for more per foot, so pricing a rebuild off them overstates resale.