1625 N Broadway

1625 N Broadway is a 32-story building in Greater Downtown Denver with 80% of its floor area within daylight reach of a facade. This screen estimates 358 homes and scores it 69 out of 100 for office-to-residential conversion suitability.

CO-1 · Screened 2026-09-19 · Worth a feasibility study

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Where 1625 N Broadway 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
1625 N Broadway

1625 N Broadway 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. 1625 N Broadway 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: 80% of the building’s floor area sits within daylight reach of a facade; the drawing shows its typical floor, where the share is 80%. The shading is daylight, darkest at the windows and gone 35 ft in. The hatched area is windowless core: 2,812 sq ft per typical floor that must be renovated but can never be rented as an apartment. The dimension marks the deepest interior point, 61 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: 2,812 sq ft on the floor the screen scores, and 81,950 sq ft over 31 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 31 residential floors this building carries 81,950 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 1625 N Broadway, 2026-09-19.

Suitability scoreWorth a feasibility study	69 / 100
Storiesfrom 379 ft aerial-survey height ÷ 12 ft floor-to-floor	32
Height bandsfloor plate by floor range, from the city's roof outlines	Floors 1–2: 15,031 sq ft · Floors 3–30: 14,283 sq ft · Floors 31–32: 1,515 sq ft
Floor platetypical floor, from the city outlines	14,283 sq ft
Daylight efficiencyshare within 35 ft of a facade	80%
Deepest interior pointviability threshold is 80 ft	61 ft
Windowless coretypical floor; the building-wide total is in the text above	2,812 sq ft
Estimated homesat 750 sq ft average	358
Conversion cost$360/sq ft all-in on 417,996 sq ft	$150.5M
Gap before grantshortfall against completed value	$66.0M
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 444 ft of exterior wall, and across 31 residential floors the building carries 13,199 ft of it in total, divided among the 358 homes this screen estimates.

Its plate is compact at 0.91: 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 11.5 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.

Why 1625 N Broadway scores 69 out of 100

Daylight efficiency 81, Interior depth 47, Scale 100, Finance 38 — each out of 100, then weighted.

Score components for 1625 N Broadway. Points are the subscore times its weight.

Component	Subscore	Weight	Points
Daylight efficiency80% of the floor area within 35 ft of a facade, scored from 40% up to 90%	81	45%	36.4
Interior depthdeepest interior point 61 ft from a facade, scored from 80 ft down to 40 ft	47	25%	11.7
Scale358 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%	5.7

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 417,996 sq ft of converted floor, or $150.5M in total — about $420K for each of the 358 homes.

All-in cost per square foot for 1625 N Broadway: 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 81,950 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 358 homes is $84.5M.

What would have to be true

A $66.0M gap before any grant, $56.0M after the modeled one. The smallest single change that would close it: average unit size 40% down.

The shortfall before any grant is $66.0M. Closing it from the value side means each of the 358 homes finishing at $420K rather than the $236K the model assumes — 78% more. Closing it from the cost side means getting all-in cost down from $360 to $202 per square foot.

A modeled RESIDE grant of $10.0M moves that threshold to $392K a home. That is still above the $236K assumed, leaving $56.0M uncovered, which is why the grant does not unlock this one.

Nor do all four levers have to move. For 1625 N Broadway, one alone would close the gap at:

Single-assumption flip points for 1625 N Broadway, each holding the other three at their defaults.

Average unit sizethe binding constraint — the least this building would need	40% downto 451 sq ft
Conversion cost per square foot	52% downto $126/sq ft
Completed value per home	66% upto $392K

All four are sliders in the survey, where 1625 N Broadway re-scores against your own numbers.

How it compares in Greater Downtown Denver

1625 N Broadway ranks 123rd of the 214 buildings screened here, against a median score of 72.

Its floor plate is better lit than 42% of them, and shallower than 36% of them at its deepest interior point. On size it is the 58th 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

43rd of 75 in CBD, 42nd of 72 zoned D-C — the comparison that shares its rules, rents and streets.

Denver places 75 of the screened buildings in CBD. 1625 N Broadway ranks 43rd 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 61 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. 1625 N Broadway ranks 42nd 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 61 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: 1675 N Broadway

The screened building closest to 1625 N Broadway in converted floor area is 1675 N Broadway: 390,581 sq ft over 30 stories, against 417,996 sq ft over 32 here.

The two land within a few points of each other — 69 here, 68 there — so at this size the screen reads them as much the same prospect. On the money they sit in the same place: each falls short even with the modeled grant. The two stand about 200 ft apart.

The city's own study picked this building too

In August 2023 Denver and the architecture firm Gensler rated 21 downtown office buildings good candidates for conversion to housing and published the top 16 by address. One of them resolves to this building: “1625 Broadway”.

That is an outside opinion reached by different means — architects reading plans, not a model reading outlines — and this screen partly agrees: 1625 N Broadway scores 69 here, worth a feasibility study but not in this screen’s strongest tier. The difference is the money rather than the geometry: at default assumptions the gap here is $66.0M, which no modeled RESIDE grant closes. A study asking whether a building can be converted and a model asking whether it would pencil are answering different questions.

Mile High CRE, Study Identifies 21 Downtown Denver Office Buildings as Good Candidates for Conversion. The full comparison across all 16 is on the Greater Downtown Denver page.

Would it qualify for a RESIDE Act grant?

The model awards 1625 N Broadway $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 1625 N Broadway

The 4 closest the screen also covers, from 190 ft away. They are the colored outlines on the plan at the top of this page.

1675 N Broadway
30 stories · 80% daylit · 333 estimated homes · scores 68/100 (Worth a feasibility study)
about 190 ft away
1600 N Broadway
29 stories · 75% daylit · 503 estimated homes · scores 64/100 (Worth a feasibility study)
about 230 ft away
110 16th St
15 stories · 85% daylit · 157 estimated homes · scores 82/100 (Strong candidate)
about 290 ft away
303 16th St
5 stories · 90% daylit · 57 estimated homes · scores 80/100 (Strong candidate)
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.