801 17th St
801 17th St is a 12-story building in Greater Downtown Denver with 73% of its floor area within daylight reach of a facade. This screen estimates 251 homes and scores it 60 out of 100 for office-to-residential conversion suitability.
CO-1 · Screened 2026-09-19 · Worth a feasibility study
Also addressed as 817 17th St, 800 18th St, 1715 Stout St, 1717 Stout St, 1735 Stout St and 1745 Stout St: Denver’s address records place all 7 on this one footprint.
Where 801 17th St is
Its block in Greater Downtown Denver, drawn from Denver's own building outlines and street centerlines.
- Already housing
- Not screened
- 801 17th St
This building does not pencil at default assumptions, even with a modeled RESIDE Act grant.
Across its 11 residential floors this building carries 85,458 sq ft of windowless core — area that must be gutted, re-plumbed and sprinklered but can never be rented as an apartment.
Read with caution. This footprint carries 7 street addresses across 49,868 sq ft, which usually means the city’s GIS has merged a block or complex into a single polygon rather than describing one convertible building.
Modeled conversion metrics for 801 17th St, 2026-09-19.
| Suitability scoreWorth a feasibility study | 60 / 100 |
|---|---|
| Storiesfrom 139 ft aerial-survey height ÷ 12 ft floor-to-floor | 12 |
| Height bandsfloor plate by floor range, from the city's roof outlines | Floors 1–3: 49,868 sq ft · Floors 4–5: 44,749 sq ft · Floors 6–8: 28,282 sq ft · Floors 9–10: 21,889 sq ft · Floor 11: 3,412 sq ft · Floor 12: 390 sq ft |
| Floor platetypical floor, from the city outlines | 49,868 sq ft |
| Daylight efficiencyshare within 35 ft of a facade | 73% |
| Deepest interior pointviability threshold is 80 ft | 64 ft |
| Windowless coretypical floor; the building-wide total is in the text above | 17,694 sq ft |
| Estimated homesat 750 sq ft average | 251 |
| Conversion cost$360/sq ft all-in on 321,660 sq ft | $115.8M |
| Gap before grantshortfall against completed value | $56.6M |
| Modeled RESIDE grantat the statutory per-award cap | $10.0M |
| BuiltDenver does not publish a construction year with this data | — |
| ZoningCBD | D-C |
| Opportunity Zonenot in a 2018 designated tract | No |
The plan: window line, shape and floor rhythm
38 ft of exterior wall for each home the screen estimates — enough for two- and three-bedroom homes across the plan.
The typical floor has 1,077 ft of exterior wall, and across 11 residential floors the building carries 9,433 ft of it in total, divided among the 251 homes this screen estimates.
Its plate is moderately compact at 0.54: a squarish plan, with enough perimeter for a conventional double-loaded corridor. How window line and plate shape are measured.
At the model’s 750 sq ft average, the plan works out at about 22.8 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.
Why 801 17th St scores 60 out of 100
Daylight efficiency 67, Interior depth 40, Scale 100, Finance 33 — each out of 100, then weighted.
Score components for 801 17th St. Points are the subscore times its weight.
| Component | Subscore | Weight | Points |
|---|---|---|---|
| Daylight efficiency73% of the floor area within 35 ft of a facade, scored from 40% up to 90% | 67 | 45% | 30.1 |
| Interior depthdeepest interior point 64 ft from a facade, scored from 80 ft down to 40 ft | 40 | 25% | 9.9 |
| Scale251 estimated homes, scored from 0 up to 150 | 100 | 15% | 15.0 |
| Financeremaining gap is 40% of conversion cost, scored from 60% down to 0% | 33 | 15% | 4.9 |
Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 33 out of 100: remaining gap is 40% of conversion cost, scored from 60% down to 0%.
What the conversion would cost
$360 per square foot all-in across 321,660 sq ft of converted floor, or $115.8M in total — about $461K for each of the 251 homes.
All-in cost per square foot for 801 17th St: base cost plus the code work a change of use triggers.
| Base conversion cost | $260/sq ft |
|---|---|
| Plumbing risers to every unit | $40/sq ft |
| Operable windows and glazing | $30/sq ft |
| Additional egress stair | $18/sq ft |
| Fire sprinklers (NFPA 13R) | $12/sq ft |
| All-in | $360/sq ft |
That cost is charged across every converted square foot, including the 85,458 sq ft of windowless core, which has to be gutted, re-plumbed and sprinklered like the rest of the building and then earns nothing. Against it the model sets a completed value of $236K a home, which for 251 homes is $59.2M.
What would have to be true
A $56.6M gap before any grant, $46.6M after the modeled one. The smallest single change that would close it: average unit size 44% down.
The shortfall before any grant is $56.6M. Closing it from the value side means each of the 251 homes finishing at $461K rather than the $236K the model assumes — 95% more. Closing it from the cost side means getting all-in cost down from $360 to $184 per square foot.
A modeled RESIDE grant of $10.0M moves that threshold to $422K a home. That is still above the $236K assumed, leaving $46.6M uncovered, which is why the grant does not unlock this one.
Nor do all four levers have to move. For 801 17th St, one alone would close the gap at:
Single-assumption flip points for 801 17th St, each holding the other three at their defaults.
| Average unit sizethe binding constraint — the least this building would need | 44% downto 421 sq ft |
|---|---|
| Conversion cost per square foot | 56% downto $115/sq ft |
| Completed value per home | 79% upto $422K |
All four are sliders in the survey, where 801 17th St re-scores against your own numbers.
How it compares in Greater Downtown Denver
801 17th St ranks 170th of the 214 buildings screened here, against a median score of 72.
Its floor plate is better lit than 24% of them, and shallower than 18% of them at its deepest interior point. On size it is the 88th largest by estimated homes. The full survey of all 214 buildings ranks and maps every one of them, and the list by address links each to its own page.
Within CBD and the D-C zone
62nd of 75 in CBD, 61st of 72 zoned D-C — the comparison that shares its rules, rents and streets.
Denver places 75 of the screened buildings in CBD. 801 17th St ranks 62nd of them against a median score of 71. 40 score 70 or more, their median deepest interior point is 56 ft from a facade against this building’s 64 ft, and together they would hold an estimated 33,698 homes. The group’s top scorer is 918 17th St, at 97.
72 of the screened buildings are zoned D-C. 801 17th St ranks 61st of them against a median score of 73. 39 score 70 or more, their median deepest interior point is 57 ft from a facade against this building’s 64 ft, and together they would hold an estimated 32,881 homes. The group’s top scorer is 721 19th St, at 95.
Its nearest match in size: 2020 Lawrence St
The screened building closest to 801 17th St in converted floor area is 2020 Lawrence St: 326,245 sq ft over 12 stories, against 321,660 sq ft over 12 here.
801 17th St scores 60 to its 85, and with the size held roughly equal most of that shortfall comes from interior depth: 40 out of 100 here, 92 there (deepest interior point 43 ft from a facade, scored from 80 ft down to 40 ft). On the money they sit in the same place: each falls short even with the modeled grant. The two stand about 1,900 ft apart.
Would it qualify for a RESIDE Act grant?
The model awards 801 17th St $10.0M, on the assumption it qualifies. Whether it does, no published dataset can say.
That figure assumes the building meets the Act’s vacant-and-abandoned test, which turns on code-enforcement and receivership records no city publishes.
It does not sit in a 2018 designated Opportunity Zone, so it would not draw that Section 201 priority.
Other buildings screened near 801 17th St
The 4 closest the screen also covers, from 140 ft away. They are the colored outlines on the plan at the top of this page.
- 821 17th St15 stories · 98% daylit · 361 estimated homes · scores 87/100 (Strong candidate)about 140 ft away
- 717 17th St33 stories · 73% daylit · 593 estimated homes · scores 61/100 (Worth a feasibility study)about 220 ft away
- 707 17th St44 stories · 73% daylit · 822 estimated homes · scores 62/100 (Worth a feasibility study)about 320 ft away
- 909 17th St14 stories · 88% daylit · 402 estimated homes · scores 76/100 (Strong candidate)about 340 ft away
A screen, not a feasibility study, from outlines and heights rather than plans: the method and how to correct a figure. If you know this building’s interior, you know what this model cannot see.