707 15th St

707 15th St is a 11-story apartment building in Greater Downtown Denver. Its floor plate has 65% of its area within daylight reach of a facade and scores 49 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

Also addressed as 749 15th St, 700 16th St, 702 16th St, 710 16th St, 714 16th St, 1545 California St, 1555 California St, 1565 California St, 1571 California St, 1575 California St and 1585 California St: Denver’s address records place all 12 on this one footprint.

Where 707 15th 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
707 15th St

707 15th 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. 707 15th 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: 65% of the building’s floor area sits within daylight reach of a facade; the drawing shows its typical floor, where the share is 62%. The shading is daylight, darkest at the windows and gone 35 ft in. The hatched area is windowless core: 20,448 sq ft per typical floor that must be renovated but can never be rented as an apartment. The dimension marks the deepest interior point, 65 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: 20,448 sq ft on the floor the screen scores, and 146,196 sq ft over 10 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 171 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 10 residential floors this building carries 146,196 sq ft of windowless core — area that must be gutted, re-plumbed and sprinklered but can never be rented as an apartment.

Read with caution. This footprint carries 12 street addresses across 53,731 sq ft, which usually means the city’s GIS has merged a block or complex into a single polygon rather than describing one convertible building.

Modeled conversion metrics for 707 15th St, 2026-09-19.

Suitability scoreMarginal	49 / 100
Storiesfrom 134 ft aerial-survey height ÷ 12 ft floor-to-floor	11
Height bandsfloor plate by floor range, from the city's roof outlines	Floors 1–7: 53,731 sq ft · Floor 8: 43,859 sq ft · Floor 9: 42,098 sq ft · Floor 10: 2,653 sq ft · Floor 11: 1,090 sq ft
Floor platetypical floor, from the city outlines	53,731 sq ft
Daylight efficiencyshare within 35 ft of a facade	65%
Deepest interior pointviability threshold is 80 ft	65 ft
Windowless coretypical floor; the building-wide total is in the text above	20,448 sq ft
BuiltDenver does not publish a construction year with this data	—
ZoningCBD	D-C
Opportunity Zonenot in a 2018 designated tract	No

The plan: window line, shape and floor rhythm

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

The typical floor has 1,110 ft of exterior wall, and across 10 residential floors the building carries 9,284 ft of it in total, divided among the 283 homes this screen estimates.

Its plate is moderately compact at 0.55: 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 28.3 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.

Why 707 15th St scores 49 out of 100

Daylight efficiency 49, Interior depth 37, Scale 100, Finance 20 — each out of 100, then weighted.

Score components for 707 15th St. Points are the subscore times its weight.

Component	Subscore	Weight	Points
Daylight efficiency65% of the floor area within 35 ft of a facade, scored from 40% up to 90%	49	45%	22.1
Interior depthdeepest interior point 65 ft from a facade, scored from 80 ft down to 40 ft	37	25%	9.2
Scale283 estimated homes, scored from 0 up to 150	100	15%	15.0
Financeremaining gap is 48% of conversion cost, scored from 60% down to 0%	20	15%	2.9

Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 20 out of 100: remaining gap is 48% of conversion cost, scored from 60% down to 0%.

Other buildings screened near 707 15th 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.

716 16th St
10 stories · 66% daylit · 194 estimated homes · scores 53/100 (Worth a feasibility study)
about 140 ft away
675 15th St
38 stories · 58% daylit · 1,009 estimated homes · scores 32/100 (Marginal)
about 300 ft away
800 16th St
11 stories · 88% daylit · 154 estimated homes · scores 85/100 (Strong candidate)
about 350 ft away
1600 Stout St
24 stories · 90% daylit · 241 estimated homes · scores 89/100 (Strong candidate)
about 360 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.