1551 Larimer St

1551 Larimer St is a 26-story condominium building in Greater Downtown Denver. Its floor plate has 90% of its area within daylight reach of a facade and scores 93 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 1551 Larimer 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
1551 Larimer St

1551 Larimer 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. 1551 Larimer 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: 90% of the building’s floor area sits within daylight reach of a facade; the drawing shows its typical floor, where the share is 94%. The shading is daylight, darkest at the windows and gone 35 ft in. The hatched area is windowless core: 765 sq ft per typical floor that must be renovated but can never be rented as an apartment. The dimension marks the deepest interior point, 39 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: 765 sq ft on the floor the screen scores, and 34,210 sq ft over 25 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 is already a condominium building: Denver's property records list 338 condominiums 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.

Across its 25 residential floors this building carries 34,210 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 1551 Larimer St, 2026-09-19.

Suitability scoreStrong candidate	93 / 100
Storiesfrom 316 ft aerial-survey height ÷ 12 ft floor-to-floor	26
Height bandsfloor plate by floor range, from the city's roof outlines	Floors 1–2: 48,119 sq ft · Floors 3–25: 13,125 sq ft · Floor 26: 883 sq ft
Floor platetypical floor, from the city outlines	13,125 sq ft
Daylight efficiencyshare within 35 ft of a facade	90%
Deepest interior pointviability threshold is 80 ft	39 ft
Windowless coretypical floor; the building-wide total is in the text above	765 sq ft
BuiltDenver does not publish a construction year with this data	—
ZoningUnion Station	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 495 ft of exterior wall, and across 25 residential floors the building carries 12,569 ft of it in total, divided among the 337 homes this screen estimates.

Its plate is moderately compact at 0.67: 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 13.5 homes per floor. Its floors are not alike, though: the typical floor's deepest interior point is 39 ft from a facade, while its worst floor reaches 60 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 1551 Larimer St scores 93 out of 100

Daylight efficiency 100, Interior depth 100, Scale 100, Finance 51 — each out of 100, then weighted.

Score components for 1551 Larimer St. Points are the subscore times its weight.

Component	Subscore	Weight	Points
Daylight efficiency90% of the floor area within 35 ft of a facade, scored from 40% up to 90%	100	45%	45.0
Interior depthdeepest interior point 39 ft from a facade, scored from 80 ft down to 40 ft	100	25%	25.0
Scale337 estimated homes, scored from 0 up to 150	100	15%	15.0
Financeremaining gap is 29% of conversion cost, scored from 60% down to 0%	51	15%	7.7

Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 51 out of 100: remaining gap is 29% of conversion cost, scored from 60% down to 0%.

Other buildings screened near 1551 Larimer St

The 4 closest the screen also covers, from 140 ft away. They are the colored outlines on the plan at the top of this page.

1321 15th St
12 stories · 76% daylit · 216 estimated homes · scores 72/100 (Strong candidate)
about 140 ft away
1512 Larimer St
13 stories · 87% daylit · already a condominium building
about 220 ft away
1575 Lawrence St
6 stories · 97% daylit · already a condominium building
about 330 ft away
1431 15th St
10 stories · 79% daylit · 311 estimated homes · scores 62/100 (Worth a feasibility study)
about 450 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.