140 23rd AveSan MateoCA94403



INVESTMENT ANALYSIS
Investment Verdict
Appreciation PlayAt a 3.69% gross rental yield, 140 23rd Ave, San Mateo, CA, 94403 in San Mateo is priced for capital growth, not immediate cash flow. The $1,888,000 purchase reflects market confidence in future value: at 5%/yr, the property is forecast to gain $521,620 by year five, with $17,389/yr in additional equity from loan paydown. Ziffy Mortgage's DSCR mortgage (0.68) qualifies for non-U.S. residents without personal income documents. Total five-year projected cumulative return: $299,006.
| This Property | City Avg | |
|---|---|---|
| Gross Rental Yield | 3.7% | 5.0% |
| Monthly Cash Flow | $(6,522) | $300 |
City averages based on San Mateo market data in our database. Property projections are estimates.
DSCR Loan Qualification
| Monthly Rental Income | $5,800 |
| Total Monthly Debt Service | $11,570 |
| DSCR Ratio | 0.50x |
Ziffy Mortgage typically prefers a DSCR of 1.0+, but in some cases you may qualify with a DSCR below 1. To explore if this deal qualifies for an investment mortgage, book time with your loan officer →
Estimates assume 6.0% rate / 30-yr fixed, 30% down, 1% tax, 0.5% insurance. Not a commitment to lend.
Single Family
Built in 1939
6,750 sqft lot
$N/A/sqft
No HOA
Neighborhood Data
Neighborhood data shown for ZIP Code: 94403, San Mateo, CA area.
Housing Distribution
Housing Statistics
| Category | Value |
|---|---|
| Total HU (Housing Units) | 18,063 (100%) |
| Owner Occupied HU | 9,115 (50.5%) |
| Renter Occupied HU | 8,169 (45.2%) |
| Vacant Housing Units | 779 ( 4.3%) |
| Median Home Value | $1,780,439 |
| Average Home Value | $1,705,852 |
Housing Distribution
Address Breakdown
Residential
17,939
Single Family
11,963
Multi-Family
5,976
Businesses
1,296



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Ziffy AI Summary
A quick, investor-focused snapshot highlighting income strength, yield potential.
| Key metrics | Value |
|---|---|
| Price | $399,900 |
| Est. Rent | $3,200/mo |
| ROI | 18% |
- Attractive rent-to-price ratio for income stability
- Good fit for DSCR financing with healthy coverage


Single Family
Built in 1939
6,750 sqft lot
$N/A/sqft
No HOA
Neighborhood Data
Neighborhood data shown for ZIP Code: 94403, San Mateo, CA area.
Housing Distribution
Housing Statistics
| Category | Value |
|---|---|
| Total HU (Housing Units) | 18,063 (100%) |
| Owner Occupied HU | 9,115 (50.5%) |
| Renter Occupied HU | 8,169 (45.2%) |
| Vacant Housing Units | 779 ( 4.3%) |
| Median Home Value | $1,780,439 |
| Average Home Value | $1,705,852 |
Housing Distribution
Address Breakdown
Residential
17,939
Single Family
11,963
Multi-Family
5,976
Businesses
1,296
Nearby investment properties with comparable rents
Nearby investment properties with comparable prices



Listed by: Sophia Waldman • Sotheby's Intl Rlty
Mls Name: MLSListings Inc
Mls Provider:
Mls ID: #ML81992845
Disclaimer: Based on information from the MLSListings MLS as of 2025-02-11 11:32:14 PST. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.








