1751 16th St

1751 16th St is a 6-story building in Greater Downtown Denver with 70% of its floor area within daylight reach of a facade. This screen estimates 80 homes and scores it 50 out of 100 for office-to-residential conversion suitability.

CO-1 · Screened 2026-09-19 · Marginal

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Also addressed as 1753 16th St, 1755 16th St and 1777 16th St: Denver’s address records place all 4 on this one footprint.

Where 1751 16th St is

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

Suitability score

0–29

30–49

50–69

70–100

Already housing
Not screened
1751 16th St

1751 16th 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. 1751 16th 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.

Typical floor plan: 70% of the building’s floor area sits within daylight reach of a facade; the drawing shows its typical floor, where the share is 70%. The shading is daylight, darkest at the windows and gone 35 ft in. The hatched area is windowless core: 8,028 sq ft per typical floor that must be renovated but can never be rented as an apartment. The dimension marks the deepest interior point, 65 ft from the nearest window. A–A is where the section beside it is cut.

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: 8,028 sq ft on the floor the screen scores, and 32,114 sq ft over 5 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 5 residential floors this building carries 32,114 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 1751 16th St, 2026-09-19.

Suitability scoreMarginal	50 / 100
Storiesfrom 77 ft aerial-survey height ÷ 12 ft floor-to-floor	6
Height bandsfloor plate by floor range, from the city's roof outlines	Floor 1: 27,813 sq ft · Floors 2–5: 26,502 sq ft · Floor 6: 1,480 sq ft
Floor platetypical floor, from the city outlines	26,502 sq ft
Daylight efficiencyshare within 35 ft of a facade	70%
Deepest interior pointviability threshold is 80 ft	65 ft
Windowless coretypical floor; the building-wide total is in the text above	8,028 sq ft
Estimated homesat 750 sq ft average	80
Conversion cost$360/sq ft all-in on 107,486 sq ft	$38.7M
Gap before grantshortfall against completed value	$19.8M
Modeled RESIDE grantbelow the statutory cap	$4.8M
BuiltDenver does not publish a construction year with this data	—
ZoningUnion Station	T-MU-30
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 668 ft of exterior wall, and across 5 residential floors the building carries 2,825 ft of it in total, divided among the 80 homes this screen estimates.

Its plate is compact at 0.75: 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 16.0 homes per floor. Its floors are not alike, though: the typical floor's deepest interior point is 65 ft from a facade, while its worst floor reaches 68 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 1751 16th St scores 50 out of 100

Daylight efficiency 60, Interior depth 38, Scale 53, Finance 35 — each out of 100, then weighted.

Score components for 1751 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%	27.1
Interior depthdeepest interior point 65 ft from a facade, scored from 80 ft down to 40 ft	38	25%	9.6
Scale80 estimated homes, scored from 0 up to 150	53	15%	8.0
Financeremaining gap is 39% of conversion cost, scored from 60% down to 0%	35	15%	5.3

Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 35 out of 100: remaining gap is 39% of conversion cost, scored from 60% down to 0%.

What the conversion would cost

$360 per square foot all-in across 107,486 sq ft of converted floor, or $38.7M in total — about $484K for each of the 80 homes.

All-in cost per square foot for 1751 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 32,114 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 80 homes is $18.9M.

What would have to be true

A $19.8M gap before any grant, $15.0M after the modeled one. The smallest single change that would close it: average unit size 39% down.

The shortfall before any grant is $19.8M. Closing it from the value side means each of the 80 homes finishing at $484K 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 $4.8M moves that threshold to $424K a home. That is still above the $236K assumed, leaving $15.0M uncovered, which is why the grant does not unlock this one.

Nor do all four levers have to move. For 1751 16th St, one alone would close the gap at:

Single-assumption flip points for 1751 16th St, each holding the other three at their defaults.

Average unit sizethe binding constraint — the least this building would need	39% downto 460 sq ft
Conversion cost per square foot	54% downto $120/sq ft
Completed value per home	80% upto $424K

All four are sliders in the survey, where 1751 16th St re-scores against your own numbers.

How it compares in Greater Downtown Denver

1751 16th St ranks 194th 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 17% of them at its deepest interior point. On size it is the 177th 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

53rd of 55 in Union Station — the comparison that shares its rules, rents and streets.

Denver places 55 of the screened buildings in Union Station. 1751 16th St ranks 53rd 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 65 ft, and together they would hold an estimated 13,167 homes. The group’s top scorer is 1600 17th St, at 95.

Its nearest match in size: 1755 Blake St

The screened building closest to 1751 16th St in converted floor area is 1755 Blake St: 107,367 sq ft over 5 stories, against 107,486 sq ft over 6 here.

1751 16th St scores 50 to its 58, and with the size held roughly equal most of that shortfall comes from daylight efficiency: 60 out of 100 here, 70 there (75% 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 1,000 ft apart.

Would it qualify for a RESIDE Act grant?

The model awards 1751 16th St $4.8M, 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 1751 16th St

The 4 closest the screen also covers, from 240 ft away. They are the colored outlines on the plan at the top of this page.

1750 16th St
13 stories · 69% daylit · 280 estimated homes · scores 49/100 (Marginal)
about 240 ft away
1600 Wynkoop St
12 stories · 76% daylit · 165 estimated homes · scores 65/100 (Worth a feasibility study)
about 280 ft away
1550 Wewatta St
13 stories · 79% daylit · 228 estimated homes · scores 66/100 (Worth a feasibility study)
about 360 ft away
1600 17th St
7 stories · 92% daylit · 180 estimated homes · scores 95/100 (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.