1900 17th St

1900 17th St is a 13-story building in Greater Downtown Denver with 91% of its floor area within daylight reach of a facade. This screen estimates 253 homes and scores it 91 out of 100 for office-to-residential conversion suitability.

CO-1 · Screened 2026-09-19 · Strong candidate

Build a conversion planCheck its numbers, lay out its homes and get a two-page PDF. Free.

Also addressed as 1920 17th St and 1678 Chestnut Pl: Denver’s address records place all 3 on this one footprint.

Where 1900 17th St is

Its block in Greater Downtown Denver, drawn from Denver's own building outlines and street centerlines.

1604 Little Raven St: already housing2005 17th St: scores 87 out of 1001650 Wewatta St: already housing1900 16th St: scores 62 out of 1001989 16th St: scores 59 out of 1002001 16th St: scores 58 out of 1002000 16th St: scores 51 out of 1006259585191CHESTNUT PL17TH STWEWATTA ST16TH STN100 ftGreater Downtown Denver
Suitability score
0–29
30–49
50–69
70–100
  • Already housing
  • Not screened
  • 1900 17th St
1900 17th St and the 1,000 ft of Greater Downtown Denver around it. The streets are drawn at the width of the right-of-way they run down, sidewalks included, and named, and every building on these blocks is drawn. What is left open and stippled is neither: a surface lot, a plaza or a vacant parcel. The screened buildings are colored by the ramp above, the same one the district map uses, carry their score, and each is a link to its own page. Each casts a shadow as long as its measured height lets it, so towers stand out from the low buildings around them; the unscreened buildings have no measured height and cast none. 1900 17th St is outlined in its own score color at the outline it covers at ground level. Dashed inside it is the typical floor, the one the floor-plate figure below draws, because this building steps back as it rises. Its windowless core is hatched. The inset places it among every building the screen covers.
43 ftAA100 ftDaylit 95%Core 1,231 sq ft
Typical floor plan: 91% of the building’s floor area sits within daylight reach of a facade; the drawing shows its typical floor, where the share is 95%. The shading is daylight, darkest at the windows and gone 35 ft in. The hatched area is windowless core: 1,231 sq ft per typical floor that must be renovated but can never be rented as an apartment. The dimension marks the deepest interior point, 43 ft from the nearest window. A–A is where the section beside it is cut.
Daylit13 floors50 ft
Section A–A: cut across the depth of the plate, through the middle of the core. Daylight reaches 35 ft in from every facade, fading as it goes, and the hatched stripe left between the lit edges is floor that gets converted and can never be rented: 1,231 sq ft on the floor the screen scores, and 24,577 sq ft over 12 residential floors. The steps are where the building sets back as it rises. The shaded ground floor is converted like the rest and counted as no homes.

This building does not pencil at default assumptions, even with a modeled RESIDE Act grant.

Across its 12 residential floors this building carries 24,577 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 1900 17th St, 2026-09-19.

Suitability scoreStrong candidate91 / 100
Storiesfrom 158 ft aerial-survey height ÷ 12 ft floor-to-floor13
Height bandsfloor plate by floor range, from the city's roof outlinesFloors 1–2: 27,932 sq ft · Floor 3: 27,408 sq ft · Floors 4–11: 22,615 sq ft · Floors 12–13: 13,025 sq ft
Floor platetypical floor, from the city outlines22,615 sq ft
Daylight efficiencyshare within 35 ft of a facade91%
Deepest interior pointviability threshold is 80 ft43 ft
Windowless coretypical floor; the building-wide total is in the text above1,231 sq ft
Estimated homesat 750 sq ft average253
Conversion cost$360/sq ft all-in on 262,309 sq ft$94.4M
Gap before grantshortfall against completed value$34.7M
Modeled RESIDE grantat the statutory per-award cap$10.0M
BuiltDenver does not publish a construction year with this data—
ZoningUnion StationPUD
Opportunity Zonenot in a 2018 designated tractNo

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 816 ft of exterior wall, and across 12 residential floors the building carries 9,582 ft of it in total, divided among the 253 homes this screen estimates.

Its plate is elongated at 0.43: a slab or an L, which is why so much of the floor lies within reach of a window: the outline buys daylight that a square plan of the same area would not. How window line and plate shape are measured.

At the model’s 750 sq ft average, the plan works out at about 21.1 homes per floor. Its floors are not alike, though: the typical floor's deepest interior point is 43 ft from a facade, while its worst floor reaches 60 ft. The score follows the typical floor, so a podium that could not hold a bedroom does not by itself sink a slim tower above it — but it is there, and it is part of what would have to be drawn around.

Why 1900 17th St scores 91 out of 100

Daylight efficiency 100, Interior depth 92, Scale 100, Finance 56 — each out of 100, then weighted.

Score components for 1900 17th St. Points are the subscore times its weight.

ComponentSubscoreWeightPoints
Daylight efficiency91% of the floor area within 35 ft of a facade, scored from 40% up to 90%10045%45.0
Interior depthdeepest interior point 43 ft from a facade, scored from 80 ft down to 40 ft9225%22.9
Scale253 estimated homes, scored from 0 up to 15010015%15.0
Financeremaining gap is 26% of conversion cost, scored from 60% down to 0%5615%8.5

Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 56 out of 100: remaining gap is 26% of conversion cost, scored from 60% down to 0%.

What the conversion would cost

$360 per square foot all-in across 262,309 sq ft of converted floor, or $94.4M in total — about $373K for each of the 253 homes.

All-in cost per square foot for 1900 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 24,577 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 253 homes is $59.7M.

What would have to be true

A $34.7M gap before any grant, $24.7M after the modeled one. The smallest single change that would close it: average unit size 29% down.

The shortfall before any grant is $34.7M. Closing it from the value side means each of the 253 homes finishing at $373K rather than the $236K the model assumes — 58% more. Closing it from the cost side means getting all-in cost down from $360 to $228 per square foot.

A modeled RESIDE grant of $10.0M moves that threshold to $334K a home. That is still above the $236K assumed, leaving $24.7M uncovered, which is why the grant does not unlock this one.

Nor do all four levers have to move. For 1900 17th St, one alone would close the gap at:

Single-assumption flip points for 1900 17th St, each holding the other three at their defaults.

Average unit sizethe binding constraint — the least this building would need29% downto 531 sq ft
Conversion cost per square foot36% downto $166/sq ft
Completed value per home41% upto $334K

All four are sliders in the survey, where 1900 17th St re-scores against your own numbers.

How it compares in Greater Downtown Denver

1900 17th St ranks 19th of the 214 buildings screened here, against a median score of 72.

Its floor plate is better lit than 78% of them, and shallower than 77% of them at its deepest interior point. On size it is the 85th 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 Union Station and the PUD zone

3rd of 55 in Union Station, 4th of 21 zoned PUD — the comparison that shares its rules, rents and streets.

Denver places 55 of the screened buildings in Union Station. 1900 17th St ranks 3rd of them against a median score of 69. 23 score 70 or more, their median deepest interior point is 61 ft from a facade against this building’s 43 ft, and together they would hold an estimated 13,167 homes. The group’s top scorer is 1600 17th St, at 95.

21 of the screened buildings are zoned PUD. 1900 17th St ranks 4th of them against a median score of 77. 12 score 70 or more, their median deepest interior point is 49 ft from a facade against this building’s 43 ft, and together they would hold an estimated 5,808 homes. The group’s top scorer is 300 E 17th Ave, at 96.

Its nearest match in size: 1321 15th St

The screened building closest to 1900 17th St in converted floor area is 1321 15th St: 266,220 sq ft over 12 stories, against 262,309 sq ft over 13 here.

1900 17th St scores 91 to its 72, and with the size held roughly equal most of that lead comes from daylight efficiency: 100 out of 100 here, 72 there (76% of the floor area within 35 ft of a facade, scored from 40% up to 90%). On the money they sit in the same place: each falls short even with the modeled grant. The two stand about 2,100 ft apart.

Would it qualify for a RESIDE Act grant?

The model awards 1900 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 1900 17th St

The 4 closest the screen also covers, from 160 ft away. They are the colored outlines on the plan at the top of this page.

  • 1989 16th St
    13 stories · 71% daylit · 254 estimated homes · scores 59/100 (Worth a feasibility study)
    about 160 ft away
  • 2001 16th St
    22 stories · 71% daylit · 494 estimated homes · scores 58/100 (Worth a feasibility study)
    about 280 ft away
  • 1650 Wewatta St
    20 stories · 84% daylit · already an apartment building
    about 300 ft away
  • 2005 17th St
    12 stories · 86% daylit · 144 estimated homes · scores 87/100 (Strong candidate)
    about 400 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.