1818 N Ogden St
1818 N Ogden St is a 7-story building in Greater Downtown Denver with 68% of its floor area within daylight reach of a facade. This screen estimates 122 homes and scores it 47 out of 100 for office-to-residential conversion suitability.
CO-1 · Screened 2026-09-19 · Marginal
Where 1818 N Ogden St is
Its block in Greater Downtown Denver, drawn from Denver's own building outlines and street centerlines.
- Already housing
- Not screened
- 1818 N Ogden St
This building does not pencil at default assumptions, even with a modeled RESIDE Act grant.
Every floor carries 9,193 sq ft of windowless core — area that must be gutted, re-plumbed and sprinklered but can never be rented as an apartment. Across 6 residential floors that is 55,156 sq ft of cost carrying no revenue.
Modeled conversion metrics for 1818 N Ogden St, 2026-09-19.
| Suitability scoreMarginal | 47 / 100 |
|---|---|
| Storiesfrom 84 ft aerial-survey height ÷ 12 ft floor-to-floor | 7 |
| Floor plateper floor, from the city footprint | 28,408 sq ft |
| Daylight efficiencyshare within 35 ft of a facade | 68% |
| Deepest interior pointviability threshold is 80 ft | 72 ft |
| Windowless coreper floor — renovated but never rentable | 9,193 sq ft |
| Estimated homesat 750 sq ft average | 122 |
| Conversion cost$360/sq ft all-in on 170,449 sq ft | $61.4M |
| Gap before grantshortfall against completed value | $32.6M |
| Modeled RESIDE grantbelow the statutory cap | $7.3M |
| BuiltDenver does not publish a construction year with this data | — |
| ZoningFive Points | CMP-H |
| 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 702 ft of exterior wall, and across 6 residential floors the building carries 4,209 ft of it in total, divided among the 122 homes this screen estimates.
Its plate is compact at 0.73: close to a square or a circle, the most efficient envelope an office can have and the least generous one for apartments: little perimeter to divide among homes. How window line and plate shape are measured.
At the model’s 750 sq ft average, the plan works out at about 20.3 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.
Why 1818 N Ogden St scores 47 out of 100
Daylight efficiency 55, Interior depth 20, Scale 81, Finance 31 — each out of 100, then weighted.
Score components for 1818 N Ogden St. Points are the subscore times its weight.
| Component | Subscore | Weight | Points |
|---|---|---|---|
| Daylight efficiency68% of the floor area within 35 ft of a facade, scored from 40% up to 90% | 55 | 45% | 24.9 |
| Interior depthdeepest interior point 72 ft from a facade, scored from 80 ft down to 40 ft | 20 | 25% | 5.1 |
| Scale122 estimated homes, scored from 0 up to 150 | 81 | 15% | 12.2 |
| Financeremaining gap is 41% of conversion cost, scored from 60% down to 0% | 31 | 15% | 4.7 |
Most of what it earns comes from daylight efficiency, and what holds it back most is interior depth, at 20 out of 100: deepest interior point 72 ft from a facade, scored from 80 ft down to 40 ft.
What the conversion would cost
$360 per square foot all-in across 170,449 sq ft of converted floor, or $61.4M in total — about $503K for each of the 122 homes.
All-in cost per square foot for 1818 N Ogden 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 55,156 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 122 homes is $28.8M.
What would have to be true
A $32.6M gap before any grant, $25.2M after the modeled one. The smallest single change that would close it: average unit size 44% down.
The shortfall before any grant is $32.6M. Closing it from the value side means each of the 122 homes finishing at $503K rather than the $236K the model assumes — 113% more. Closing it from the cost side means getting all-in cost down from $360 to $169 per square foot.
A modeled RESIDE grant of $7.3M moves that threshold to $443K a home. That is still above the $236K assumed, leaving $25.2M uncovered, which is why the grant does not unlock this one.
Nor do all four levers have to move. For 1818 N Ogden St, one alone would close the gap at:
Single-assumption flip points for 1818 N Ogden St, each holding the other three at their defaults.
| Average unit sizethe binding constraint — the least this building would need | 44% downto 423 sq ft |
|---|---|
| Conversion cost per square foot | 57% downto $112/sq ft |
| Completed value per home | 88% upto $443K |
All four are sliders in the survey, where 1818 N Ogden St re-scores against your own numbers.
How it compares in Greater Downtown Denver
1818 N Ogden St ranks 200th of the 214 buildings screened here, against a median score of 72.
Its floor plate is better lit than 8% of them, and shallower than 10% of them at its deepest interior point. On size it is the 149th 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
19th of 20 in Five Points — the comparison that shares its rules, rents and streets.
Denver places 20 of the screened buildings in Five Points. 1818 N Ogden St ranks 19th 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 72 ft, and together they would hold an estimated 5,122 homes. The group’s top scorer is 3355 Denargo St, at 90.
Its nearest match in size: 500 E 19th Ave
The screened building closest to 1818 N Ogden St in converted floor area is 500 E 19th Ave: 165,799 sq ft over 6 stories, against 170,449 sq ft over 7 here.
1818 N Ogden St scores 47 to its 95, and with the size held roughly equal most of that shortfall comes from daylight efficiency: 55 out of 100 here, 100 there (98% of the floor area within 35 ft of a facade, scored from 40% up to 90%). On the money they sit in the same place: each falls short even with the modeled grant. The two stand about 1,700 ft apart.
Would it qualify for a RESIDE Act grant?
The model awards 1818 N Ogden St $7.3M, 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 1818 N Ogden St
The 4 closest the screen also covers, from 180 ft away. They are the colored outlines on the plan at the top of this page.
- 1099 E 18th Ave5 stories · 70% daylit · 76 estimated homes · scores 51/100 (Worth a feasibility study)about 180 ft away
- 1010 E 19th Ave10 stories · 100% daylit · already an apartment buildingabout 240 ft away
- 1960 N Ogden St8 stories · 79% daylit · 244 estimated homes · scores 70/100 (Worth a feasibility study)about 600 ft away
- 1833 N Emerson St6 stories · 90% daylit · already an apartment buildingabout 620 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.