City of Diamond BarOct 8
Join in Celebrating Two New Businesses
The City is welcoming two new businesses, and the community is invited to celebrate with back-to-back ribbon-cutting ceremonies Oct. 14 and 15.
The local blog
Diamond Bar Blog
What Diamond Bar City Hall is deciding about homes and land, this week's market, and guides written for Diamond Bar owners and buyers.
Read the desk note →Your next 30 days in Diamond Bar
The dates a homeowner here needs between now and Sun, Nov 1.
1st installment of secured property tax is due
The first installment of your secured property tax bill is due on this date and is late after December 10.
Source: LA County Treasurer and Tax Collector, Secured Property Taxes FAQs →Add to calendar
Dates from the county and city; check the source before you rely on one.
The desk note
A closer look at the stories shaping Diamond Bar neighborhoods this week.
Read the full brief →As of October 19. Listing brokerage shown on each row. A new desk note is published every Monday — subscribe via RSS. Card photography is illustrative Diamond Bar imagery, not the addresses listed.
Latest briefs
Quick reads on Diamond Bar real estate, lifestyle and the community.
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Weekly briefSep 28, 2026
Diamond Bar weekly desk note — week of September 28, 2026
Diamond Bar saw 13 price cuts, 10 new listings and 18 status changes this week — up from 32 last week, as of October 4, 2026.
Read the brief →
Weekly briefSep 22, 2026
Diamond Bar weekly desk note — week of September 21, 2026
Diamond Bar saw 11 price cuts, 9 new listings and 12 status changes this week — down from 41 last week, as of September 27, 2026.
Read the brief →
Weekly briefSep 17, 2026
Diamond Bar weekly desk note — week of September 14, 2026
Diamond Bar saw 13 price cuts, 6 new listings and 22 status changes this week — up from 36 last week, as of September 20, 2026.
Read the brief →
Weekly briefSep 7, 2026
Diamond Bar weekly desk note — week of September 7, 2026
Diamond Bar saw 13 price cuts, 11 new listings and 12 status changes this week, as of September 11, 2026.
Read the brief →
Market reportSeptember 2026
Diamond Bar's median sale price in September: $1,110,000, $200,000 above a year ago
The median Diamond Bar home sold for $1,110,000 in September, against $910,000 in September 2025. In September 2026, 29 homes sold in Diamond Bar at a median $1,110,000 ($517 a square foot), after a median 49 days on the market. In August it was 23 sales at a median $1,088,000.
Read the brief →City of Diamond BarHeadlines are the outlets' own, shown with the source named and the story left where it was published. Card photography is illustrative Diamond Bar imagery, not a photograph from the story.
Where prices moved
Closed sales by ZIP, the last twelve months against the twelve before. It tells you which side of Diamond Bar is moving, not what your house is worth.
Price my file →Oct 2025–Oct 2026 against Oct 2024–Oct 2025, as of October 19, 2026.
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Old prices, cancellations, every failed attempt.
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