3463 Walnut St

3463 Walnut St is a 13-story apartment building in Greater Downtown Denver. Its floor plate has 88% of its area within daylight reach of a facade and scores 87 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 3463 Walnut 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
3463 Walnut St

3463 Walnut 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. 3463 Walnut 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: 88% of the building’s floor area sits within daylight reach of a facade; the drawing shows its typical floor, where the share is 91%. The shading is daylight, darkest at the windows and gone 35 ft in. The hatched area is windowless core: 2,048 sq ft per typical floor that must be renovated but can never be rented as an apartment. The dimension marks the deepest interior point, 47 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: 2,048 sq ft on the floor the screen scores, and 34,054 sq ft over 12 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 an apartment building: Denver's property records list 382 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.

Across its 12 residential floors this building carries 34,054 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 3463 Walnut St, 2026-09-19.

Suitability scoreStrong candidate	87 / 100
Storiesfrom 159 ft aerial-survey height ÷ 12 ft floor-to-floor	13
Height bandsfloor plate by floor range, from the city's roof outlines	Floors 1–3: 29,712 sq ft · Floors 4–11: 23,865 sq ft · Floor 12: 20,158 sq ft · Floor 13: 2,816 sq ft
Floor platetypical floor, from the city outlines	23,865 sq ft
Daylight efficiencyshare within 35 ft of a facade	88%
Deepest interior pointviability threshold is 80 ft	47 ft
Windowless coretypical floor; the building-wide total is in the text above	2,048 sq ft
BuiltDenver does not publish a construction year with this data	—
ZoningFive Points	I-MX-8
Opportunity Zonenot in a 2018 designated tract	No

The plan: window line, shape and floor rhythm

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

The typical floor has 792 ft of exterior wall, and across 12 residential floors the building carries 8,854 ft of it in total, divided among the 255 homes this screen estimates.

Its plate is moderately compact at 0.48: 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 21.3 homes per floor. Its floors are not alike, though: the typical floor's deepest interior point is 47 ft from a facade, while its worst floor reaches 61 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 3463 Walnut St scores 87 out of 100

Daylight efficiency 95, Interior depth 83, Scale 100, Finance 52 — each out of 100, then weighted.

Score components for 3463 Walnut St. Points are the subscore times its weight.

Component	Subscore	Weight	Points
Daylight efficiency88% of the floor area within 35 ft of a facade, scored from 40% up to 90%	95	45%	42.8
Interior depthdeepest interior point 47 ft from a facade, scored from 80 ft down to 40 ft	83	25%	20.9
Scale255 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%	52	15%	7.8

Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 52 out of 100: remaining gap is 29% of conversion cost, scored from 60% down to 0%.

Other buildings screened near 3463 Walnut St

The 4 closest the screen also covers, from 450 ft away. They are the colored outlines on the plan at the top of this page.

3501 Blake St
5 stories · 98% daylit · 54 estimated homes · scores 86/100 (Strong candidate)
about 450 ft away
3600 Blake St
10 stories · 69% daylit · 362 estimated homes · scores 56/100 (Worth a feasibility study)
about 850 ft away
3235 Larimer St
6 stories · 70% daylit · already an apartment building
about 1,080 ft away
3320 N Brighton Blvd
11 stories · 82% daylit · 207 estimated homes · scores 67/100 (Worth a feasibility study)
about 1,210 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.