ZIP 94028, Portola Valley Housing Market · 2026

Data through Sep 2026 · Part of the Portola Valley housing market

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

ZIP 94028, Portola Valley Market Snapshot

ZIP 94028 is shifting toward buyers. Here's where things stand:

Based on 20 homes sold in the 3 months ending September 2026. Includes all residential types (SFH, condo, townhouse, multi-family, and others). Updated weekly.

Data through September 2026

SalesWhat are homes selling for?
Median Sale Price
$5.45M
▲ Up 27.4% from September 2025
Up $1.17M from September 2025
Homes Sold
20
Sold in the last 3 months. More sales = more reliable data.
Your CostWhat would you actually pay each month?
Monthly Payment
~$36,038/mo
7.4% · 30yr fixed · 20% down
Payment Breakdown
  • Principal & Interest$30,179
  • Property Tax$5,675
  • Insurance$183
CompetitionHow competitive is it right now?
Days on Market
42 days
▲ 13 more days than in September 2025
Buyers have time to decide
Sale-to-List Ratio
98.4%
▼ Down from 100.1% in September 2025
Selling 2% below asking
% Sold Over Asking
30%
Only 30% sold above asking. Few bidding wars right now
Active Listings
16
▼ Down 36.1% from September 2025
About 2.4 months of supply. Moderate selection available

Market Trends

See how prices, monthly costs, and mortgage rates have moved in 94028, Portola Valley.

Median Sale Price
Up 27.4% year-over-year in 94028, Portola Valley. Based on 20 sales in the last 3 months.
Homes Sold
100% more homes sold than a year ago in 94028, Portola Valley.
Total Monthly Payment
Estimated monthly cost is up 35% from a year ago in 94028, Portola Valley, 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 7.4%. Your actual rate depends on your credit, down payment, and loan type.

Frequently asked questions about ZIP 94028

Is now a good time to buy in ZIP 94028?

ZIP 94028 currently leans toward buyers. Homes are sitting longer and sellers are more open to negotiation. It is a good time to take your time, request contingencies, and consider offering below asking.

How do ZIP 94028 home prices compare to the Bay Area average?

At $5.45M, ZIP 94028's median is roughly 3 times the Bay Area median of $1.77M. ZIP 94028 sits at the very top of the regional market.

Within Portola Valley, this area trades about 11% below the city-wide median of $6.11M.

How competitive is ZIP 94028 for buyers?

ZIP 94028 currently leans toward buyers:

  • Homes sell about 2% below asking on average
  • 30% close above list price
  • 42 days typical time to go pending

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 ZIP 94028 home?

At $5.45M with 20% down at 7.4%, the monthly cost breakdown:

  • $30,179 principal and interest
  • $5,675 property tax (California 1.25% effective rate)
  • Insurance is highly variable at this price point and scales with the home; plan on $1,500 to $3,000 per month rather than our default

Most buyers at this tier pay a meaningful share in cash, which reduces monthly carrying costs.

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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