1437 N Bannock St
1437 N Bannock St is a 16-story building in Greater Downtown Denver with 89% of its floor area within daylight reach of a facade. This screen estimates 496 homes and scores it 78 out of 100 for office-to-residential conversion suitability.
CO-1 · Screened 2026-09-19 · Strong candidate
Where 1437 N Bannock St is
Its block in Greater Downtown Denver, drawn from Denver's own building outlines and street centerlines.
- Already housing
- Not screened
- 1437 N Bannock St
This building does not pencil at default assumptions, even with a modeled RESIDE Act grant.
Across its 15 residential floors this building carries 55,700 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 1437 N Bannock St, 2026-09-19.
| Suitability scoreStrong candidate | 78 / 100 |
|---|---|
| Storiesfrom 189 ft aerial-survey height ÷ 12 ft floor-to-floor | 16 |
| Height bandsfloor plate by floor range, from the city's roof outlines | Floors 1–8: 73,748 sq ft · Floors 9–10: 999 sq ft · Floors 11–16: 519 sq ft |
| Floor platetypical floor, from the city outlines | 73,748 sq ft |
| Daylight efficiencyshare within 35 ft of a facade | 89% |
| Deepest interior pointviability threshold is 80 ft | 62 ft |
| Windowless coretypical floor; the building-wide total is in the text above | 7,957 sq ft |
| Estimated homesat 750 sq ft average | 496 |
| Conversion cost$360/sq ft all-in on 521,345 sq ft | $187.7M |
| Gap before grantshortfall against completed value | $70.6M |
| Modeled RESIDE grantat the statutory per-award cap | $10.0M |
| BuiltDenver does not publish a construction year with this data | — |
| ZoningCivic Center | D-CV |
| 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 2,138 ft of exterior wall, and across 15 residential floors the building carries 15,680 ft of it in total, divided among the 496 homes this screen estimates.
Its plate is highly articulated at 0.20: a long, notched or wing-shaped outline with far more facade than its area needs — wasteful as an office envelope, and close to ideal for apartments. How window line and plate shape are measured.
At the model’s 750 sq ft average, the plan works out at about 33.1 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.
Why 1437 N Bannock St scores 78 out of 100
Daylight efficiency 99, Interior depth 46, Scale 100, Finance 46 — each out of 100, then weighted.
Score components for 1437 N Bannock St. Points are the subscore times its weight.
| Component | Subscore | Weight | Points |
|---|---|---|---|
| Daylight efficiency89% of the floor area within 35 ft of a facade, scored from 40% up to 90% | 99 | 45% | 44.4 |
| Interior depthdeepest interior point 62 ft from a facade, scored from 80 ft down to 40 ft | 46 | 25% | 11.5 |
| Scale496 estimated homes, scored from 0 up to 150 | 100 | 15% | 15.0 |
| Financeremaining gap is 32% of conversion cost, scored from 60% down to 0% | 46 | 15% | 6.9 |
Most of what it earns comes from daylight efficiency, and what holds it back most is interior depth, at 46 out of 100: deepest interior point 62 ft from a facade, scored from 80 ft down to 40 ft.
What the conversion would cost
$360 per square foot all-in across 521,345 sq ft of converted floor, or $187.7M in total — about $378K for each of the 496 homes.
All-in cost per square foot for 1437 N Bannock 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 55,700 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 496 homes is $117.1M.
What would have to be true
A $70.6M gap before any grant, $60.6M after the modeled one. The smallest single change that would close it: average unit size 34% down.
The shortfall before any grant is $70.6M. Closing it from the value side means each of the 496 homes finishing at $378K rather than the $236K the model assumes — 60% more. Closing it from the cost side means getting all-in cost down from $360 to $225 per square foot.
A modeled RESIDE grant of $10.0M moves that threshold to $358K a home. That is still above the $236K assumed, leaving $60.6M uncovered, which is why the grant does not unlock this one.
Nor do all four levers have to move. For 1437 N Bannock St, one alone would close the gap at:
Single-assumption flip points for 1437 N Bannock St, each holding the other three at their defaults.
| Average unit sizethe binding constraint — the least this building would need | 34% downto 495 sq ft |
|---|---|
| Conversion cost per square foot | 45% downto $144/sq ft |
| Completed value per home | 52% upto $358K |
All four are sliders in the survey, where 1437 N Bannock St re-scores against your own numbers.
How it compares in Greater Downtown Denver
1437 N Bannock St ranks 85th of the 214 buildings screened here, against a median score of 72.
Its floor plate is better lit than 71% of them, and shallower than 33% of them at its deepest interior point. On size it is the 37th 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-CV zone
7th of 23 in Civic Center, 2nd of 4 zoned D-CV — the comparison that shares its rules, rents and streets.
Denver places 23 of the screened buildings in Civic Center. 1437 N Bannock St ranks 7th 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 62 ft, and together they would hold an estimated 5,064 homes. The group’s top scorer is 1314 N Elati St, at 92.
4 of the screened buildings are zoned D-CV. 1437 N Bannock St ranks 2nd of them against a median score of 56. 2 score 70 or more, their median deepest interior point is 74 ft from a facade against this building’s 62 ft, and together they would hold an estimated 1,085 homes. The group’s top scorer is 144 W Colfax Ave, at 85.
Its nearest match in size: 101 W Colfax Ave
The screened building closest to 1437 N Bannock St in converted floor area is 101 W Colfax Ave: 574,007 sq ft over 14 stories, against 521,345 sq ft over 16 here.
1437 N Bannock St scores 78 and 101 W Colfax Ave only 35, and the difference is a hard fail rather than a matter of degree: the lower one is capped at 35 because its deepest interior point is 86 ft from a facade, past the 80 ft threshold beyond which conversion requires carving a light well. 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 1437 N Bannock 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 1437 N Bannock St
The 4 closest the screen also covers, from 370 ft away. They are the colored outlines on the plan at the top of this page.
- 320 W Colfax Ave7 stories · 57% daylit · 215 estimated homes · scores 32/100 (Marginal)about 370 ft away
- 144 W Colfax Ave5 stories · 97% daylit · 58 estimated homes · scores 85/100 (Strong candidate)about 450 ft away
- 1359 Court Pl15 stories · 87% daylit · 138 estimated homes · scores 90/100 (Strong candidate)about 500 ft away
- 1371 N Cherokee St6 stories · 88% daylit · 90 estimated homes · scores 78/100 (Strong candidate)about 530 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.