Bay Area Housing Alpha
San Francisco & the Peninsula · 25 cities and towns

Make sense of your
next home purchase.

Compare places and homes. Understand the monthly cost. Keep track of what you know—and what still needs an answer.

Still choosing a place?

Compare cities →

See prices and sales on the same charts, for the same home type and period.

Have a home in mind?

Compare homes →

Bring your options together: purchase price, ownership costs and evidence to check.

Free to use · No account needed · Sources and assumptions kept visible

25 cities. See the differences.

Where would you consider buying?

Choose two or three cities. Compare the same home type and dates; city averages describe different housing stock, so a lower median does not mean an equivalent home costs less.

Home type
What would owning cost me? Optional · private

Enter your comfortable monthly housing spend and purchase cash. See estimated costs at each city’s median price and what exceeds your targets.

Purchase cash covers the down payment and buying costs. Enter what remains after keeping your emergency reserves.

Adjust mortgage, taxes, insurance & fees

These are editable examples shared across cities. Add the actual HOA and insurance quote for a particular home. Starting mortgage rate: 6.76% national 30-year benchmark, 2026-09-10; use your lender’s quote.

With less than 20% down, enter a mortgage-insurance quote, or 0 if your loan does not require it.

Using 20% down · 6.76% mortgage · 1.2% tax · 1% upkeep · $250/mo insurance · $0/mo HOA · 2% buying fees. HOA starts at $0; check the property.

Add both targets to see the comparison. You can also explore without a budget.

Stays in memory while you navigate this tab. Refreshing clears it. Excluded from links, saved briefs, printouts and analytics.

Single-family homes · Jun 2026–Aug 2026 · rolling 3 months0 / 3 cities selected
San Francisco BayPacific Ocean
City boundaries · simplified overview
Median sale price
$1.03M$11.99M
Gray: unavailable, small / unknown sample or mismatched window. An outline marks your selection.
Choose two or three cities

25 of 25 cities · Numbers match the map. Search filters this list.

Median sale price
$11,992,972 · 26 salesGuide ↗
$2,396,596 · 50 salesGuide ↗
$1,574,078 · 12 salesGuide ↗
$3,318,056 · 54 salesGuide ↗
$1,756,970 · Small or unknown sampleGuide ↗
$1,299,239 · 72 salesGuide ↗
$1,034,394 · 27 salesGuide ↗
$2,160,234 · 26 salesGuide ↗
$1,723,990 · 28 salesGuide ↗
$6,496,193 · 38 salesGuide ↗
$4,821,175 · 68 salesGuide ↗
$5,796,603 · 30 salesGuide ↗
$3,652,859 · 53 salesGuide ↗
$2,333,632 · 37 salesGuide ↗
$2,860,324 · 50 salesGuide ↗
$1,349,209 · 80 salesGuide ↗
$4,192,543 · 102 salesGuide ↗
$5,709,154 · 17 salesGuide ↗
$2,361,116 · 119 salesGuide ↗
$1,457,146 · 56 salesGuide ↗
$2,598,477 · 73 salesGuide ↗
$1,868,905 · 693 salesGuide ↗
$2,148,741 · 140 salesGuide ↗
$1,301,737 · 70 salesGuide ↗
$4,622,291 · 21 salesGuide ↗

Scroll the list for more cities. Bars start at zero. Color runs from lower to higher; neither means better.

Which places would you consider?

Choose 2 more cities to compare prices and history.

City medians describe the homes that sold, not an individual home's value or homes available within a budget.

Sources, dates & how to read this map

Published Redfin snapshots; rolling three-month windows overlap. Changing the home type updates every value and preserves your cities. Price and marketing-time shading requires at least ten reported closed sales as a caution screen; the closed-sales count does not establish the sample size of contracts used for days on market. Condos / co-ops exclude townhouses. Missing values are not zero.

U.S. Census Bureau city boundaries · BAS 2026, captured 2026-09-17. Mainland view for orientation; some boundaries include water and San Francisco’s offshore islands are outside this view. These are citywide values, not neighborhood prices, parcel surveys, hazard maps or forecasts.

The street background loads from OpenFreeMap, using OpenStreetMap and OpenMapTiles. Your browser requests map tiles; your city choices are not sent to the map provider. Privacy details · Full evidence table

From a listing to a considered decision

Keep the facts beside the tradeoffs.

The cost beyond the price

Compare monthly outlay and cash for purchase. Change insurance, HOA fees and repairs for each home; see which figures still need a quote.

Start a home comparison →

The evidence behind the home

Check public records in 20 San Mateo County cities, school-district context across all 25 cities, and nearby projects in SF and San Mateo. Coverage gaps remain visible.

Look up public records →

The reasoning you can return to

Save your comparison on this device, including your own priorities and unresolved questions. Export a private copy when you want to discuss it.

Open My search →
The monthly Peninsula buyer brief

Understand your options before you commit.

What changed, why it matters, and questions to take to your next tour. Start with a complete sample of the free regional edition.

Read the sample buyer brief

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Local context

Look closer at your cities.

San Francisco, all 20 San Mateo County cities and towns, plus four cities in northern Santa Clara County. Every guide includes sales history. Published city analyses explain the local evidence; address and reported-price records cover all 20 San Mateo County cities, while research models cover the original eight.

Browse city articles → · Read the regional reports →

San Francisco 1 city
San Mateo County 20 cities and towns

Atherton →

Sales history · Address records · City analysis

Belmont →

Sales history · Address records · City analysis

Brisbane →

Sales history · Address records · City analysis

Colma →

Sales history · Address records · City analysis

Millbrae →

Sales history · Address records · Local research

Pacifica →

Sales history · Address records · Local research

Woodside →

Sales history · Address records · City analysis

Santa Clara County 4 cities and towns

A clear view of what the evidence can tell you.

City history helps you compare areas. Public records can reveal missing or conflicting facts. Neither tells you what a particular home is worth or guarantees future appreciation.

Our approach → · Research library →