Mariners Isle, San Mateo Housing Market · 2026

Data through Jul 2026

Data curated by Melanie Tan, 8 Blocks Real Estate · How this data works

Mariners Isle, San Mateo Market Snapshot

Mariners Isle leans toward buyers, though competition has been picking up recently. Here's where things stand:

Based on 6 homes sold in the 3 months ending July 2026. Includes all residential types (SFH, condo, townhouse, multi-family, and others). Enough to see the trend, but individual sales still move the median. Updated weekly.

Data through July 2026

SalesWhat are homes selling for?
Median Sale Price
$1.41M
Up 51.2% from July 2025
Up $479K from July 2025
Homes Sold
6
Sold in the last 3 months. More sales = more reliable data.
Your CostWhat would you actually pay each month?
Monthly Payment
~$8,960/mo
6.71% · 30yr fixed · 20% down
Payment Breakdown
  • Principal & Interest$7,304
  • Property Tax$1,472
  • Insurance$183
CompetitionHow competitive is it right now?
Days on Market
46 days
1 fewer day than in July 2025
Buyers have time to decide
Sale-to-List Ratio
97.9%
Up from 95.9% in July 2025
Selling 2% below asking
% Sold Over Asking
33%
33% of homes sold above asking, some competition
Active Listings
8
Up 150.0% from July 2025
About 3.7 months of supply. Moderate selection available

Market Trends

See how prices, monthly costs, and mortgage rates have moved in Mariners Isle.

Median Sale Price
Up 51.2% year-over-year in Mariners Isle. Based on 6 sales in the last 3 months.
Homes Sold
14% fewer homes sold than a year ago in Mariners Isle.
Total Monthly Payment
Estimated monthly cost is up 49% from a year ago in Mariners Isle, reflecting changes in both price and mortgage rates.

Includes principal, interest, estimated CA property tax (~1.25%), and estimated insurance (~$2,200/yr). HOA fees not included.

30-Year Fixed Mortgage Rate (National Avg.)
National average currently at 6.71%. Your actual rate depends on your credit, down payment, and loan type.

Frequently asked questions about Mariners Isle, San Mateo

Is now a good time to buy in Mariners Isle, San Mateo?

Mariners Isle, San Mateo leans toward buyers, though competition has been picking up recently. Buyers still have leverage to negotiate, but the window may be narrowing.

How do Mariners Isle, San Mateo home prices compare to the Bay Area average?

At $1.41M, Mariners Isle, San Mateo's median sits about 22% below the Bay Area average of $1.80M. That average is skewed high by ultra-premium peninsula enclaves like Atherton and Woodside, so a more useful frame is that Mariners Isle, San Mateo is one of the more accessible corners of the Bay Area.

Within San Mateo, this area trades about 18% below the city-wide median of $1.71M.

By home type:

  • Single-family homes at $1.63M
  • Townhomes at $1.44M
  • Condos at $485K
What price range should I budget for in Mariners Isle, San Mateo?

Prices in Mariners Isle, San Mateo depend heavily on home type and specific neighborhood. Median sale prices by type:

  • Single-family homes at $1.63M
  • Townhomes at $1.44M
  • Condos at $485K

Individual listings vary widely based on location, size, and condition. The best calibration is to narrow to a few specific neighborhoods you are considering and look at recent sales there.

How competitive is Mariners Isle, San Mateo for buyers?

Mariners Isle, San Mateo currently leans toward buyers:

  • Homes sell about 2% below asking on average
  • 33% close above list price
  • 46 days typical time to go pending
  • 40% of listings have had a price reduction

Buyer strategy: a well-structured offer near or below list price has a good chance of success.

What will my total monthly cost be on a median-priced Mariners Isle, San Mateo home?

At $1.41M with 20% down at 6.71%, your estimated total monthly cost is approximately $8,960:

  • $7,304 principal and interest
  • $1,472 property tax (California 1.25% effective rate)
  • $183 homeowners insurance

HOA fees are extra. Condo buyers typically budget an additional $300 to $700 per month for HOA, and townhome HOAs run $200 to $500.

No noise, just a quick weekly read on what's going on in your market.

Melanie Tan
Melanie Tan
DRE #02250755
“I help Bay Area buyers and sellers make confident moves with the latest market data, real local expertise, and the patience to find what's actually right for you, not the fastest close.”
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