140 W 10th Ave

140 W 10th Ave is a 17-story building in Greater Downtown Denver with 57% of its floor area within daylight reach of a facade. This screen estimates 505 homes and scores it 34 out of 100 for office-to-residential conversion suitability.

CO-1 · Screened 2026-09-19 · Marginal

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Where 140 W 10th Ave 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
140 W 10th Ave

140 W 10th Ave 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. 140 W 10th Ave 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: 57% of the building’s floor area sits within daylight reach of a facade; the drawing shows its typical floor, where the share is 57%. The shading is daylight, darkest at the windows and gone 35 ft in. The hatched area is windowless core: 23,373 sq ft per typical floor that must be renovated but can never be rented as an apartment. The dimension marks the deepest interior point, 77 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: 23,373 sq ft on the floor the screen scores, and 350,588 sq ft over 16 residential floors. 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 16 residential floors this building carries 350,588 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 140 W 10th Ave, 2026-09-19.

Suitability scoreMarginal	34 / 100
Storiesfrom 202 ft aerial-survey height ÷ 12 ft floor-to-floor	17
Height bandsfloor plate by floor range, from the city's roof outlines	Floors 1–16: 54,795 sq ft · Floor 17: 2,169 sq ft
Floor platetypical floor, from the city outlines	54,795 sq ft
Daylight efficiencyshare within 35 ft of a facade	57%
Deepest interior pointviability threshold is 80 ft	77 ft
Windowless coretypical floor; the building-wide total is in the text above	23,373 sq ft
Estimated homesat 750 sq ft average	505
Conversion cost$360/sq ft all-in on 824,096 sq ft	$296.7M
Gap before grantshortfall against completed value	$177.5M
Modeled RESIDE grantat the statutory per-award cap	$10.0M
BuiltDenver does not publish a construction year with this data	—
ZoningCivic Center	D-GT
Opportunity Zonenot in a 2018 designated tract	No

The plan: window line, shape and floor rhythm

32 ft of exterior wall for each home the screen estimates — enough for two- and three-bedroom homes across the plan.

The typical floor has 1,073 ft of exterior wall, and across 16 residential floors the building carries 16,315 ft of it in total, divided among the 505 homes this screen estimates.

Its plate is moderately compact at 0.60: 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 31.6 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.

Why 140 W 10th Ave scores 34 out of 100

Daylight efficiency 35, Interior depth 8, Scale 100, Finance 6 — each out of 100, then weighted.

Score components for 140 W 10th Ave. Points are the subscore times its weight.

Component	Subscore	Weight	Points
Daylight efficiency57% of the floor area within 35 ft of a facade, scored from 40% up to 90%	35	45%	15.7
Interior depthdeepest interior point 77 ft from a facade, scored from 80 ft down to 40 ft	8	25%	2.0
Scale505 estimated homes, scored from 0 up to 150	100	15%	15.0
Financeremaining gap is 56% of conversion cost, scored from 60% down to 0%	6	15%	0.9

Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 6 out of 100: remaining gap is 56% of conversion cost, scored from 60% down to 0%.

What the conversion would cost

$360 per square foot all-in across 824,096 sq ft of converted floor, or $296.7M in total — about $587K for each of the 505 homes.

All-in cost per square foot for 140 W 10th Ave: 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 350,588 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 505 homes is $119.2M.

What would have to be true

A $177.5M gap before any grant, $167.5M after the modeled one. The smallest single change that would close it: average unit size 58% down.

The shortfall before any grant is $177.5M. Closing it from the value side means each of the 505 homes finishing at $587K rather than the $236K the model assumes — 149% more. Closing it from the cost side means getting all-in cost down from $360 to $145 per square foot.

A modeled RESIDE grant of $10.0M moves that threshold to $568K a home. That is still above the $236K assumed, leaving $167.5M uncovered, which is why the grant does not unlock this one.

Nor do all four levers have to move. For 140 W 10th Ave, one alone would close the gap at:

Single-assumption flip points for 140 W 10th Ave, each holding the other three at their defaults.

Average unit sizethe binding constraint — the least this building would need	58% downto 312 sq ft
Conversion cost per square foot	78% downto $57/sq ft
Completed value per home	141% upto $568K

All four are sliders in the survey, where 140 W 10th Ave re-scores against your own numbers.

How it compares in Greater Downtown Denver

140 W 10th Ave ranks 208th of the 214 buildings screened here, against a median score of 72.

Its floor plate is better lit than 2% of them, and shallower than 7% of them at its deepest interior point. On size it is the 34th 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 Civic Center and the D-GT zone

21st of 23 in Civic Center, 15th of 15 zoned D-GT — the comparison that shares its rules, rents and streets.

Denver places 23 of the screened buildings in Civic Center. 140 W 10th Ave ranks 21st of them against a median score of 67. 10 score 70 or more, their median deepest interior point is 62 ft from a facade against this building’s 77 ft, and together they would hold an estimated 5,064 homes. The group’s top scorer is 1314 N Elati St, at 92.

15 of the screened buildings are zoned D-GT. 140 W 10th Ave ranks 15th of them against a median score of 76. 8 score 70 or more, their median deepest interior point is 54 ft from a facade against this building’s 77 ft, and together they would hold an estimated 2,397 homes. The group’s top scorer is 1314 N Elati St, at 92.

Its nearest match in size: 899 N Bannock St

The screened building closest to 140 W 10th Ave in converted floor area is 899 N Bannock St: 791,542 sq ft over 17 stories, against 824,096 sq ft over 17 here.

140 W 10th Ave scores 34 to its 67, and with the size held roughly equal most of that shortfall comes from interior depth: 8 out of 100 here, 72 there (deepest interior point 51 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 500 ft apart.

Would it qualify for a RESIDE Act grant?

The model awards 140 W 10th Ave $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 140 W 10th Ave

The 4 closest the screen also covers, from 230 ft away. They are the colored outlines on the plan at the top of this page.

930 N Acoma St
7 stories · 100% daylit · already a condominium building
about 230 ft away
899 N Bannock St
17 stories · 74% daylit · 621 estimated homes · scores 67/100 (Worth a feasibility study)
about 480 ft away
1023 N Broadway
6 stories · 100% daylit · 47 estimated homes · scores 87/100 (Strong candidate)
about 620 ft away
1000 N Cherokee St
6 stories · 90% daylit · 83 estimated homes · scores 66/100 (Worth a feasibility study)
about 710 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.