410 17th St
410 17th St is a 27-story building in Greater Downtown Denver with 81% of its floor area within daylight reach of a facade. This screen estimates 397 homes and scores it 74 out of 100 for office-to-residential conversion suitability.
CO-1 · Screened 2026-09-19 · Strong candidate
Where 410 17th St is
Its block in Greater Downtown Denver, drawn from Denver's own building outlines and street centerlines.
- Already housing
- Not screened
- 410 17th St
This building does not pencil at default assumptions, even with a modeled RESIDE Act grant.
Across its 26 residential floors this building carries 89,287 sq ft of windowless core — area that must be gutted, re-plumbed and sprinklered but can never be rented as an apartment.
Modeled conversion metrics for 410 17th St, 2026-09-19.
| Suitability scoreStrong candidate | 74 / 100 |
|---|---|
| Storiesfrom 328 ft aerial-survey height ÷ 12 ft floor-to-floor | 27 |
| Height bandsfloor plate by floor range, from the city's roof outlines | Floors 1–26: 17,986 sq ft · Floor 27: 12,723 sq ft |
| Floor platetypical floor, from the city outlines | 17,986 sq ft |
| Daylight efficiencyshare within 35 ft of a facade | 81% |
| Deepest interior pointviability threshold is 80 ft | 53 ft |
| Windowless coretypical floor; the building-wide total is in the text above | 3,522 sq ft |
| Estimated homesat 750 sq ft average | 397 |
| Conversion cost$360/sq ft all-in on 462,365 sq ft | $166.5M |
| Gap before grantshortfall against completed value | $72.8M |
| 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 579 ft of exterior wall, and across 26 residential floors the building carries 14,936 ft of it in total, divided among the 397 homes this screen estimates.
Its plate is moderately compact at 0.67: 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 15.3 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.
Why 410 17th St scores 74 out of 100
Daylight efficiency 81, Interior depth 68, Scale 100, Finance 37 — each out of 100, then weighted.
Score components for 410 17th St. Points are the subscore times its weight.
| Component | Subscore | Weight | Points |
|---|---|---|---|
| Daylight efficiency81% of the floor area within 35 ft of a facade, scored from 40% up to 90% | 81 | 45% | 36.6 |
| Interior depthdeepest interior point 53 ft from a facade, scored from 80 ft down to 40 ft | 68 | 25% | 16.9 |
| Scale397 estimated homes, scored from 0 up to 150 | 100 | 15% | 15.0 |
| Financeremaining gap is 38% of conversion cost, scored from 60% down to 0% | 37 | 15% | 5.6 |
Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 37 out of 100: remaining gap is 38% of conversion cost, scored from 60% down to 0%.
What the conversion would cost
$360 per square foot all-in across 462,365 sq ft of converted floor, or $166.5M in total — about $419K for each of the 397 homes.
All-in cost per square foot for 410 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 89,287 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 397 homes is $93.7M.
What would have to be true
A $72.8M gap before any grant, $62.8M after the modeled one. The smallest single change that would close it: average unit size 40% down.
The shortfall before any grant is $72.8M. Closing it from the value side means each of the 397 homes finishing at $419K rather than the $236K the model assumes — 78% more. Closing it from the cost side means getting all-in cost down from $360 to $203 per square foot.
A modeled RESIDE grant of $10.0M moves that threshold to $394K a home. That is still above the $236K assumed, leaving $62.8M uncovered, which is why the grant does not unlock this one.
Nor do all four levers have to move. For 410 17th St, one alone would close the gap at:
Single-assumption flip points for 410 17th St, each holding the other three at their defaults.
| Average unit sizethe binding constraint — the least this building would need | 40% downto 450 sq ft |
|---|---|
| Conversion cost per square foot | 52% downto $124/sq ft |
| Completed value per home | 67% upto $394K |
All four are sliders in the survey, where 410 17th St re-scores against your own numbers.
How it compares in Greater Downtown Denver
410 17th St ranks 101st of the 214 buildings screened here, against a median score of 72.
Its floor plate is better lit than 44% of them, and shallower than 59% of them at its deepest interior point. On size it is the 51st 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
35th of 75 in CBD, 35th of 72 zoned D-C — the comparison that shares its rules, rents and streets.
Denver places 75 of the screened buildings in CBD. 410 17th St ranks 35th 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 53 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. 410 17th St ranks 35th 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 53 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: 701 16th St
The screened building closest to 410 17th St in converted floor area is 701 16th St: 456,540 sq ft over 30 stories, against 462,365 sq ft over 27 here.
410 17th St scores 74 to its 68, and with the size held roughly equal most of that lead comes from interior depth: 68 out of 100 here, 43 there (deepest interior point 63 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 1,000 ft apart.
Would it qualify for a RESIDE Act grant?
The model awards 410 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 410 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.
- 444 17th St12 stories · 100% daylit · already a condominium buildingabout 140 ft away
- 370 17th St60 stories · 71% daylit · 1,140 estimated homes · scores 57/100 (Worth a feasibility study)about 230 ft away
- 1600 Glenarm Pl32 stories · 86% daylit · already an apartment buildingabout 230 ft away
- 321 17th St20 stories · 84% daylit · 321 estimated homes · scores 68/100 (Worth a feasibility study)about 280 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.