1575 N Pennsylvania St

1575 N Pennsylvania St is a 10-story apartment building in Greater Downtown Denver. Its floor plate has 100% of its area within daylight reach of a facade and scores 91 out of 100 on this screen’s measures, which is part of why it works as housing.

CO-1 · Screened 2026-09-19 · Already housing

Where 1575 N Pennsylvania 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
1575 N Pennsylvania St

1575 N Pennsylvania 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. 1575 N Pennsylvania 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. The inset places it among every building the screen covers.

Typical floor plan: 100% of the building’s floor area sits within daylight reach of a facade; the drawing shows its typical floor, where the share is 100%, with no dead core at all. The shading is daylight, darkest at the windows and gone 35 ft in. The dimension marks the deepest interior point, 33 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, and here it meets in the middle: the plate is thin enough that no floor is left windowless. 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 is already an apartment building: Denver's property records list 154 apartments here. It is on the map because the city's building outlines file it as commercial, but this site does not count it as a conversion candidate.

This footprint has no windowless core at all: every point on the floor plate is within 35 ft of a facade, which is unusual and is the main reason it scores as well as it does.

Modeled conversion metrics for 1575 N Pennsylvania St, 2026-09-19.

Suitability scoreStrong candidate	91 / 100
Storiesfrom 116 ft aerial-survey height ÷ 12 ft floor-to-floor	10
Height bandsfloor plate by floor range, from the city's roof outlines	Floors 1–2: 11,695 sq ft · Floors 3–7: 10,571 sq ft · Floors 8–10: 7,457 sq ft
Floor platetypical floor, from the city outlines	10,571 sq ft
Daylight efficiencyshare within 35 ft of a facade	100%
Deepest interior pointviability threshold is 80 ft	33 ft
Windowless coretypical floor; the building-wide total is in the text above	0 sq ft
BuiltDenver does not publish a construction year with this data	—
ZoningNorth Capitol Hill	C-MX-8
Opportunity Zonenot in a 2018 designated tract	No

The plan: window line, shape and floor rhythm

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

The typical floor has 564 ft of exterior wall, and across 9 residential floors the building carries 5,059 ft of it in total, divided among the 92 homes this screen estimates.

Its plate is elongated at 0.42: a slab or an L, which is why so much of the floor lies within reach of a window: the outline buys daylight that a square plan of the same area would not. How window line and plate shape are measured.

At the model’s 750 sq ft average, the plan works out at about 10.2 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.

Why 1575 N Pennsylvania St scores 91 out of 100

Daylight efficiency 100, Interior depth 100, Scale 61, Finance 78 — each out of 100, then weighted.

Score components for 1575 N Pennsylvania St. Points are the subscore times its weight.

Component	Subscore	Weight	Points
Daylight efficiency100% of the floor area within 35 ft of a facade, scored from 40% up to 90%	100	45%	45.0
Interior depthdeepest interior point 33 ft from a facade, scored from 80 ft down to 40 ft	100	25%	25.0
Scale92 estimated homes, scored from 0 up to 150	61	15%	9.2
Financeremaining gap is 13% of conversion cost, scored from 60% down to 0%	78	15%	11.8

Most of what it earns comes from daylight efficiency, and what holds it back most is scale, at 61 out of 100: 92 estimated homes, scored from 0 up to 150.

Other buildings screened near 1575 N Pennsylvania St

The 4 closest the screen also covers, from 160 ft away. They are the colored outlines on the plan at the top of this page.

1580 N Logan St
11 stories · 91% daylit · 92 estimated homes · scores 85/100 (Strong candidate)
about 160 ft away
401 E Colfax Ave
7 stories · 96% daylit · 84 estimated homes · scores 89/100 (Strong candidate)
about 320 ft away
1615 N Pennsylvania St
7 stories · 98% daylit · already an apartment building
about 330 ft away
1595 N Pearl St
5 stories · 89% daylit · 47 estimated homes · scores 77/100 (Strong candidate)
about 330 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.