815 16th St
815 16th St is a 14-story building in Greater Downtown Denver with 77% of its floor area within daylight reach of a facade. This screen estimates 249 homes and scores it 64 out of 100 for office-to-residential conversion suitability.
CO-1 · Screened 2026-09-19 · Worth a feasibility study
Also addressed as 818 17th St, 1635 Stout St, 1645 Stout St, 1661 Stout St and 1667 Stout St: Denver’s address records place all 6 on this one footprint.
Where 815 16th St is
Its block in Greater Downtown Denver, drawn from Denver's own building outlines and street centerlines.
- Already housing
- Not screened
- 815 16th St
This building does not pencil at default assumptions, even with a modeled RESIDE Act grant.
Across its 13 residential floors this building carries 69,152 sq ft of windowless core — area that must be gutted, re-plumbed and sprinklered but can never be rented as an apartment.
Part of this building is already homes. Denver's property records list 0 apartments here, alongside 17 non-residential records. The figures here treat the whole building as convertible, so read them as an upper bound and check which floors are already housing.
Read with caution. This footprint carries 6 street addresses across 51,225 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 815 16th St, 2026-09-19.
| Suitability scoreWorth a feasibility study | 64 / 100 |
|---|---|
| Storiesfrom 165 ft aerial-survey height ÷ 12 ft floor-to-floor | 14 |
| Height bandsfloor plate by floor range, from the city's roof outlines | Floors 1–3: 51,225 sq ft · Floors 4–6: 32,659 sq ft · Floors 7–13: 14,617 sq ft · Floor 14: 436 sq ft |
| Floor platetypical floor, from the city outlines | 51,225 sq ft |
| Daylight efficiencyshare within 35 ft of a facade | 77% |
| Deepest interior pointviability threshold is 80 ft | 65 ft |
| Windowless coretypical floor; the building-wide total is in the text above | 18,690 sq ft |
| Estimated homesat 750 sq ft average | 249 |
| Conversion cost$360/sq ft all-in on 303,178 sq ft | $109.1M |
| Gap before grantshortfall against completed value | $50.4M |
| 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
37 ft of exterior wall for each home the screen estimates — enough for two- and three-bedroom homes across the plan.
The typical floor has 1,085 ft of exterior wall, and across 13 residential floors the building carries 9,319 ft of it in total, divided among the 249 homes this screen estimates.
Its plate is moderately compact at 0.55: 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 19.2 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.
Why 815 16th St scores 64 out of 100
Daylight efficiency 74, Interior depth 38, Scale 100, Finance 38 — each out of 100, then weighted.
Score components for 815 16th St. Points are the subscore times its weight.
| Component | Subscore | Weight | Points |
|---|---|---|---|
| Daylight efficiency77% of the floor area within 35 ft of a facade, scored from 40% up to 90% | 74 | 45% | 33.5 |
| Interior depthdeepest interior point 65 ft from a facade, scored from 80 ft down to 40 ft | 38 | 25% | 9.6 |
| Scale249 estimated homes, scored from 0 up to 150 | 100 | 15% | 15.0 |
| Financeremaining gap is 37% of conversion cost, scored from 60% down to 0% | 38 | 15% | 5.8 |
Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 38 out of 100: remaining gap is 37% of conversion cost, scored from 60% down to 0%.
What the conversion would cost
$360 per square foot all-in across 303,178 sq ft of converted floor, or $109.1M in total — about $438K for each of the 249 homes.
All-in cost per square foot for 815 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 69,152 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 249 homes is $58.8M.
What would have to be true
A $50.4M gap before any grant, $40.4M after the modeled one. The smallest single change that would close it: average unit size 41% down.
The shortfall before any grant is $50.4M. Closing it from the value side means each of the 249 homes finishing at $438K rather than the $236K the model assumes — 86% more. Closing it from the cost side means getting all-in cost down from $360 to $194 per square foot.
A modeled RESIDE grant of $10.0M moves that threshold to $398K a home. That is still above the $236K assumed, leaving $40.4M uncovered, which is why the grant does not unlock this one.
Nor do all four levers have to move. For 815 16th St, one alone would close the gap at:
Single-assumption flip points for 815 16th St, each holding the other three at their defaults.
| Average unit sizethe binding constraint — the least this building would need | 41% downto 445 sq ft |
|---|---|
| Conversion cost per square foot | 51% downto $127/sq ft |
| Completed value per home | 69% upto $398K |
All four are sliders in the survey, where 815 16th St re-scores against your own numbers.
How it compares in Greater Downtown Denver
815 16th St ranks 150th of the 214 buildings screened here, against a median score of 72.
Its floor plate is better lit than 34% of them, and shallower than 18% of them at its deepest interior point. On size it is the 90th 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
55th of 75 in CBD, 54th of 72 zoned D-C — the comparison that shares its rules, rents and streets.
Denver places 75 of the screened buildings in CBD. 815 16th St ranks 55th 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 65 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. 815 16th St ranks 54th 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 65 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: 1801 Wewatta St
The screened building closest to 815 16th St in converted floor area is 1801 Wewatta St: 313,271 sq ft over 13 stories, against 303,178 sq ft over 14 here.
815 16th St scores 64 to its 87, and with the size held roughly equal most of that shortfall comes from interior depth: 38 out of 100 here, 94 there (deepest interior point 42 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 3,900 ft apart.
Would it qualify for a RESIDE Act grant?
The model awards 815 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 815 16th 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 16th St11 stories · 73% daylit · 220 estimated homes · scores 61/100 (Worth a feasibility study)about 140 ft away
- 724 17th St12 stories · 95% daylit · 259 estimated homes · scores 94/100 (Strong candidate)about 210 ft away
- 1600 Stout St24 stories · 90% daylit · 241 estimated homes · scores 89/100 (Strong candidate)about 260 ft away
- 701 16th St30 stories · 81% daylit · 392 estimated homes · scores 68/100 (Worth a feasibility study)about 350 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.