1831 35th St

1831 35th St is a 10-story building in Greater Downtown Denver with 81% of its floor area within daylight reach of a facade. This screen estimates 177 homes and scores it 77 out of 100 for office-to-residential conversion suitability.

CO-1 · Screened 2026-09-19 · Strong candidate

Build a conversion planCheck its numbers, lay out its homes and get a two-page PDF. Free.

Also addressed as 3503 N Brighton Blvd, 3513 N Brighton Blvd, 3517 N Brighton Blvd, 3527 N Brighton Blvd and 3537 N Brighton Blvd: Denver’s address records place all 6 on this one footprint.

Where 1831 35th 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
1831 35th St

1831 35th 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. 1831 35th 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: 81% of the building’s floor area sits within daylight reach of a facade; the drawing shows its typical floor, where the share is 81%. The shading is daylight, darkest at the windows and gone 35 ft in. The hatched area is windowless core: 4,286 sq ft per typical floor that must be renovated but can never be rented as an apartment. The dimension marks the deepest interior point, 51 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: 4,286 sq ft on the floor the screen scores, and 40,158 sq ft over 9 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 building does not pencil at default assumptions, even with a modeled RESIDE Act grant.

Across its 9 residential floors this building carries 40,158 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 1831 35th St, 2026-09-19.

Suitability scoreStrong candidate	77 / 100
Storiesfrom 126 ft aerial-survey height ÷ 12 ft floor-to-floor	10
Height bandsfloor plate by floor range, from the city's roof outlines	Floors 1–4: 24,948 sq ft · Floors 5–8: 22,625 sq ft · Floors 9–10: 20,447 sq ft
Floor platetypical floor, from the city outlines	22,625 sq ft
Daylight efficiencyshare within 35 ft of a facade	81%
Deepest interior pointviability threshold is 80 ft	51 ft
Windowless coretypical floor; the building-wide total is in the text above	4,286 sq ft
Estimated homesat 750 sq ft average	177
Conversion cost$360/sq ft all-in on 206,239 sq ft	$74.2M
Gap before grantshortfall against completed value	$32.5M
Modeled RESIDE grantat the statutory per-award cap	$10.0M
BuiltDenver does not publish a construction year with this data	—
ZoningFive Points	C-MX-12
Opportunity Zonenot in a 2018 designated tract	No

The plan: window line, shape and floor rhythm

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

The typical floor has 773 ft of exterior wall, and across 9 residential floors the building carries 6,794 ft of it in total, divided among the 177 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 19.7 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.

Why 1831 35th St scores 77 out of 100

Daylight efficiency 81, Interior depth 73, Scale 100, Finance 50 — each out of 100, then weighted.

Score components for 1831 35th St. Points are the subscore times its weight.

Component	Subscore	Weight	Points
Daylight efficiency81% of the floor area within 35 ft of a facade, scored from 40% up to 90%	81	45%	36.5
Interior depthdeepest interior point 51 ft from a facade, scored from 80 ft down to 40 ft	73	25%	18.4
Scale177 estimated homes, scored from 0 up to 150	100	15%	15.0
Financeremaining gap is 30% of conversion cost, scored from 60% down to 0%	50	15%	7.4

Most of what it earns comes from daylight efficiency, and what holds it back most is finance, at 50 out of 100: remaining gap is 30% of conversion cost, scored from 60% down to 0%.

What the conversion would cost

$360 per square foot all-in across 206,239 sq ft of converted floor, or $74.2M in total — about $419K for each of the 177 homes.

All-in cost per square foot for 1831 35th 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 40,158 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 177 homes is $41.8M.

What would have to be true

A $32.5M gap before any grant, $22.5M after the modeled one. The smallest single change that would close it: average unit size 35% down.

The shortfall before any grant is $32.5M. Closing it from the value side means each of the 177 homes finishing at $419K rather than the $236K the model assumes — 78% more. Closing it from the cost side means getting all-in cost down from $360 to $203 per square foot.

A modeled RESIDE grant of $10.0M moves that threshold to $363K a home. That is still above the $236K assumed, leaving $22.5M uncovered, which is why the grant does not unlock this one.

Nor do all four levers have to move. For 1831 35th St, one alone would close the gap at:

Single-assumption flip points for 1831 35th St, each holding the other three at their defaults.

Average unit sizethe binding constraint — the least this building would need	35% downto 487 sq ft
Conversion cost per square foot	42% downto $151/sq ft
Completed value per home	54% upto $363K

All four are sliders in the survey, where 1831 35th St re-scores against your own numbers.

How it compares in Greater Downtown Denver

1831 35th St ranks 88th of the 214 buildings screened here, against a median score of 72.

Its floor plate is better lit than 43% of them, and shallower than 65% of them at its deepest interior point. On size it is the 117th 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 Five Points and the C-MX-12 zone

8th of 20 in Five Points, 13th of 16 zoned C-MX-12 — the comparison that shares its rules, rents and streets.

Denver places 20 of the screened buildings in Five Points. 1831 35th St ranks 8th of them against a median score of 68. 9 score 70 or more, their median deepest interior point is 61 ft from a facade against this building’s 51 ft, and together they would hold an estimated 5,122 homes. The group’s top scorer is 3355 Denargo St, at 90.

16 of the screened buildings are zoned C-MX-12. 1831 35th St ranks 13th of them against a median score of 85. 13 score 70 or more, their median deepest interior point is 44 ft from a facade against this building’s 51 ft, and together they would hold an estimated 2,011 homes. The group’s top scorer is 1776 N Grant St, at 97.

Its nearest match in size: 820 16th St

The screened building closest to 1831 35th St in converted floor area is 820 16th St: 213,352 sq ft over 10 stories, against 206,239 sq ft over 10 here.

1831 35th St scores 77 to its 67, and with the size held roughly equal most of that lead comes from interior depth: 73 out of 100 here, 38 there (deepest interior point 65 ft from a facade, scored from 80 ft down to 40 ft). On the money they sit in the same place: each falls short even with the modeled grant. The two stand about 10,100 ft apart.

Would it qualify for a RESIDE Act grant?

The model awards 1831 35th 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 1831 35th St

The 4 closest the screen also covers, from 960 ft away. They are the colored outlines on the plan at the top of this page.

3320 N Brighton Blvd
11 stories · 82% daylit · 207 estimated homes · scores 67/100 (Worth a feasibility study)
about 960 ft away
3501 Blake St
5 stories · 98% daylit · 54 estimated homes · scores 86/100 (Strong candidate)
about 1,070 ft away
3299 N Brighton Blvd
8 stories · 82% daylit · already an apartment building
about 1,270 ft away
3600 Blake St
10 stories · 69% daylit · 362 estimated homes · scores 56/100 (Worth a feasibility study)
about 1,400 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.