Market snapshot
This report covers ZIP 91765, Diamond Bar, CA. Demographic and housing figures blend U.S. Census ACS 5-year estimates with current rental listings. Flip-activity figures come from public county records of real estate transactions in the last 12 months, filtered to exclude wholesale deals, family transfers, and new construction.
Flipper activity in ZIP 91765
In the last 12 months, 21 properties in ZIP 91765 were bought and resold by investors, matching a real-flip profile (28 to 540 day hold, purchase of $25K or more, no new construction, rebuilds, iBuyers or multi-parcel sales; money-losing flips included). The typical flip cleared $290K in gross margin before rehab, carrying, and closing costs, with a median hold time of 160 days.
Top flippers in the zip
| Rank | Flipper / LLC | Flips |
|---|---|---|
| 1 | PERAK INV LLC | 1 |
| 2 | DIGNITY HOMES INC | 1 |
| 3 | MASIS HOLDINGS LLC | 1 |
| 4 | MC REALTY INVESTMENT LLC | 1 |
| 5 | ZENTRA GROUP LLC | 1 |
Recent example
20920 RUNNING BRANCH RD, DIAMOND BAR, CA, 91765 · PERAK INV LLC
Bought $1,250,000, sold $1,341,000 (+$91K), held 147 days.
Recent investor purchases in ZIP 91765
22 investor purchases in ZIP 91765 in the last 6 months, at a median price of $780K. 64% were all-cash. These are the investors competing for deals in this zip right now.
| Date | Property | Investor | Price | Paid with |
|---|---|---|---|---|
| Nov 3, 2026 | 23674 BOWER CASCADE PL | VILLAGE CAPITAL & INVESTMENT LLC | $819K | Cash |
| Oct 27, 2026 | 23902 SUNSET CROSSING RD | MAISON PROPERTIES LLC | $780K | Financed |
| Oct 26, 2026 | 23902 SUNSET CROSSING RD | MILES OF REAL ESTATE | $752K | Cash |
| Oct 16, 2026 | 2169 ROCKY VIEW RD | AZ HOME MANAGEMENT INC | $1.7M | Financed |
| Oct 8, 2026 | 23001 PASEO DE TERRADO UNIT 2 | JI TONY TUO | $750K | Cash |
| Oct 8, 2026 | 22928 BEAVERHEAD DR | BLACKSTONE LLC | $755K | Financed |
| Oct 6, 2026 | 3581 HAWKWOOD RD | CIPHER CAPITAL LLC | $1.3M | Cash |
| Oct 2, 2026 | 1752 MAPLE HILL RD | LIANG DANIEL | $1.2M | Cash |
| Oct 1, 2026 | 23635 GOLDEN SPRINGS DR UNIT B10 | K & S PROPERTIES INVESTMENT LLC | $295K | Cash |
| Oct 1, 2026 | 24443 NAN CT | RS REAL ESTATE PLUS | $700K | Financed |
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See every flip in 91765, with full buyer and deal details
The full tool shows every flip transaction with buyer entity, exact purchase price, sale price, margin, and hold time. Plus the complete flipper leaderboard, comps for any address, rental analysis, and our T1F Market Score.
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About this data
Flip transactions: Pulled from public county recording records via SFR Analytics. Filtered to investor purchases resold 28 to 540 days later (shorter holds are wholesale or assignment deals). New construction, rebuilds, iBuyers, homebuilders, multi-parcel sales, family transfers and purchases under $25K are excluded. Money-losing flips are included, so margins reflect the real range of outcomes.
Gross margin: Sale price minus purchase price. Does not include rehab, carrying, or closing costs. Use our Deal Calculator to model full project returns.
Demographics and rent: Population, median household income, and median home value from U.S. Census ACS 5-year estimates (2022). Rental figures reflect current listings from SFR Analytics.
Why we built this: Tier One Funding is a direct bridge and fix-and-flip lender. We built this free tool because flippers kept asking us, "What are the real numbers in my market?" and there was no free answer that wasn't buried behind a paywall. Use the data to decide where to buy, then call us when you need bridge capital.