1001 16th St
1001 16th St is a 27-story building in Greater Downtown Denver with 70% of its floor area within daylight reach of a facade. This screen estimates 543 homes and scores it 56 out of 100 for office-to-residential conversion suitability.
CO-1 · Screened 2026-09-19 · Worth a feasibility study
Also addressed as 1099 16th St and 1050 17th St: Denver’s address records place all 3 on this one footprint.
Where 1001 16th St is
Its block in Greater Downtown Denver, drawn from Denver's own building outlines and street centerlines.
- Already housing
- Not screened
- 1001 16th St
This building does not pencil at default assumptions, even with a modeled RESIDE Act grant.
Across its 26 residential floors this building carries 219,081 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 1001 16th St, 2026-09-19.
| Suitability scoreWorth a feasibility study | 56 / 100 |
|---|---|
| Storiesfrom 326 ft aerial-survey height ÷ 12 ft floor-to-floor | 27 |
| Height bandsfloor plate by floor range, from the city's roof outlines | Floors 1–2: 83,421 sq ft · Floor 3: 66,206 sq ft · Floor 4: 52,677 sq ft · Floors 5–27: 22,901 sq ft |
| Floor platetypical floor, from the city outlines | 22,901 sq ft |
| Daylight efficiencyshare within 35 ft of a facade | 70% |
| Deepest interior pointviability threshold is 80 ft | 63 ft |
| Windowless coretypical floor; the building-wide total is in the text above | 6,291 sq ft |
| Estimated homesat 750 sq ft average | 543 |
| Conversion cost$360/sq ft all-in on 729,030 sq ft | $262.5M |
| Gap before grantshortfall against completed value | $134.3M |
| Modeled RESIDE grantat the statutory per-award cap | $10.0M |
| BuiltDenver does not publish a construction year with this data | — |
| ZoningCBD | D-TD |
| Opportunity Zonenot in a 2018 designated tract | No |
The plan: window line, shape and floor rhythm
35 ft of exterior wall for each home the screen estimates — enough for two- and three-bedroom homes across the plan.
The typical floor has 615 ft of exterior wall, and across 26 residential floors the building carries 18,865 ft of it in total, divided among the 543 homes this screen estimates.
Its plate is compact at 0.76: close to a square or a circle, the most efficient envelope an office can have and the least generous one for apartments: little perimeter to divide among homes. How window line and plate shape are measured.
At the model’s 750 sq ft average, the plan works out at about 20.9 homes per floor. Its floors are not alike, though: the typical floor's deepest interior point is 63 ft from a facade, while its worst floor reaches 120 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 1001 16th St scores 56 out of 100
Daylight efficiency 60, Interior depth 42, Scale 100, Finance 21 — each out of 100, then weighted.
Score components for 1001 16th St. Points are the subscore times its weight.
| Component | Subscore | Weight | Points |
|---|---|---|---|
| Daylight efficiency70% of the floor area within 35 ft of a facade, scored from 40% up to 90% | 60 | 45% | 27.0 |
| Interior depthdeepest interior point 63 ft from a facade, scored from 80 ft down to 40 ft | 42 | 25% | 10.4 |
| Scale543 estimated homes, scored from 0 up to 150 | 100 | 15% | 15.0 |
| Financeremaining gap is 47% of conversion cost, scored from 60% down to 0% | 21 | 15% | 3.2 |
Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 21 out of 100: remaining gap is 47% of conversion cost, scored from 60% down to 0%.
What the conversion would cost
$360 per square foot all-in across 729,030 sq ft of converted floor, or $262.5M in total — about $483K for each of the 543 homes.
All-in cost per square foot for 1001 16th 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 219,081 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 543 homes is $128.1M.
What would have to be true
A $134.3M gap before any grant, $124.3M after the modeled one. The smallest single change that would close it: average unit size 49% down.
The shortfall before any grant is $134.3M. Closing it from the value side means each of the 543 homes finishing at $483K rather than the $236K the model assumes — 105% more. Closing it from the cost side means getting all-in cost down from $360 to $176 per square foot.
A modeled RESIDE grant of $10.0M moves that threshold to $465K a home. That is still above the $236K assumed, leaving $124.3M uncovered, which is why the grant does not unlock this one.
Nor do all four levers have to move. For 1001 16th St, one alone would close the gap at:
Single-assumption flip points for 1001 16th St, each holding the other three at their defaults.
| Average unit sizethe binding constraint — the least this building would need | 49% downto 381 sq ft |
|---|---|
| Conversion cost per square foot | 66% downto $89/sq ft |
| Completed value per home | 97% upto $465K |
All four are sliders in the survey, where 1001 16th St re-scores against your own numbers.
How it compares in Greater Downtown Denver
1001 16th St ranks 183rd of the 214 buildings screened here, against a median score of 72.
Its floor plate is better lit than 13% of them, and shallower than 20% of them at its deepest interior point. On size it is the 32nd 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-TD zone
64th of 75 in CBD, 16th of 20 zoned D-TD — the comparison that shares its rules, rents and streets.
Denver places 75 of the screened buildings in CBD. 1001 16th St ranks 64th 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 63 ft, and together they would hold an estimated 33,698 homes. The group’s top scorer is 918 17th St, at 97.
20 of the screened buildings are zoned D-TD. 1001 16th St ranks 16th of them against a median score of 69. 10 score 70 or more, their median deepest interior point is 57 ft from a facade against this building’s 63 ft, and together they would hold an estimated 8,599 homes. The group’s top scorer is 918 17th St, at 97.
Its nearest match in size: 1800 Larimer St
The screened building closest to 1001 16th St in converted floor area is 1800 Larimer St: 790,829 sq ft over 29 stories, against 729,030 sq ft over 27 here.
1001 16th St scores 56 to its 60, and with the size held roughly equal most of that shortfall comes from daylight efficiency: 60 out of 100 here, 66 there (73% 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 1,200 ft apart.
Would it qualify for a RESIDE Act grant?
The model awards 1001 16th 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 1001 16th St
The 4 closest the screen also covers, from 280 ft away. They are the colored outlines on the plan at the top of this page.
- 950 17th St30 stories · 80% daylit · 502 estimated homes · scores 75/100 (Strong candidate)about 280 ft away
- 951 16th St9 stories · 71% daylit · 161 estimated homes · scores 61/100 (Worth a feasibility study)about 380 ft away
- 1020 16th St5 stories · 63% daylit · 77 estimated homes · scores 33/100 (Marginal)about 410 ft away
- 918 17th St10 stories · 100% daylit · 176 estimated homes · scores 97/100 (Strong candidate)about 430 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.