Market snapshot
This report covers ZIP 80303, Boulder, CO. 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 80303
In the last 12 months, 7 properties in ZIP 80303 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 $387K in gross margin before rehab, carrying, and closing costs, with a median hold time of 271 days.
Top flippers in the zip
| Rank | Flipper / LLC | Flips |
|---|---|---|
| 1 | THIRTY SEVENTH STREET LLC | 1 |
| 2 | CLARE CT LLC | 1 |
| 3 | YELLOW DOOR INVESTMENTS LLC | 1 |
| 4 | DRIFTWOOD PROPERTIES LLC | 1 |
| 5 | BROCKWAY LEAN BACK LLC | 1 |
Recent example
705 37TH ST, BOULDER, CO, 80303 · THIRTY SEVENTH STREET LLC
Bought $318,210, sold $705,000 (+$387K), held 104 days.
Recent investor purchases in ZIP 80303
13 investor purchases in ZIP 80303 in the last 6 months, at a median price of $650K. 85% were all-cash. These are the investors competing for deals in this zip right now.
| Date | Property | Investor | Price | Paid with |
|---|---|---|---|---|
| Oct 20, 2026 | 885 39TH ST | TAKEHEART MARKETING LLC | $510K | Financed |
| Oct 14, 2026 | 1001 WAITE DR | BEETLE LLC | $647K | Cash |
| Oct 1, 2026 | 730 35TH ST | COBALT PROPERTIES INC | $765K | Cash |
| Aug 10, 2026 | 3301 ARAPAHOE AVE UNIT 406 | MILL VALLEY STATION LLC | $875K | Cash |
| Aug 4, 2026 | 2895 COLLEGE AVE APT 15 | 1100 28TH STREET OWNER LLC | $650K | Cash |
| Jul 21, 2026 | 60 S BOULDER CIR APT 6033 | COX HOLDINGS 2021 LLC | $419K | Financed |
| Jul 13, 2026 | 3090 AURORA AVE | ROMI II LLC | $650K | Cash |
| Jun 15, 2026 | 1332 WHITE HAWK RANCH DR | 1332 WHITE HAWK LLC | $6.0M | Cash |
| Jun 4, 2026 | 2849 SPRINGDALE LN | WSB HOLDINGS LLC | $850K | Cash |
| May 26, 2026 | 3601 ARAPAHOE AVE UNIT 223 | SMT REVOCABLE TRUST | $430K | Cash |
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More of Boulder
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See every flip in 80303, 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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We built this tool. We also write the loans on flips just like the ones above.
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.