111 N Market St
111 N Market St is a 10-story building in Downtown San Jose with 81% of its floor area within daylight reach of a facade. This screen estimates 151 homes and scores it 85 out of 100 for office-to-residential conversion suitability.
CA-18 · Screened 2026-10-20 · Strong candidate
No address point in San Jose’s records falls inside this footprint, so it is named by the closest one that no other screened building claims — usually a site entrance, but check the outline on the plan below before relying on the street number.
Where 111 N Market St is
Its block in Downtown San Jose, drawn from San Jose's own building outlines and street centerlines.
- Already housing
- Not screened
- 111 N Market St
This building does not pencil on its own, but a modeled RESIDE Act grant would close the gap if the building qualified for one.
Every floor carries 3,689 sq ft of windowless core — area that must be gutted, seismically braced and sprinklered but can never be rented as an apartment. Across 9 residential floors that is 33,197 sq ft of cost carrying no revenue.
Modeled conversion metrics for 111 N Market St, 2026-10-20.
| Suitability scoreStrong candidate | 85 / 100 |
|---|---|
| Storiesfrom Bisnow, “Swift Real Estate Partners Sells San Jose Office Complex”, in place of the 144 ft LiDAR height ÷ 12 ft floor-to-floor | 10 |
| Floor plateper floor, from the city footprint | 19,464 sq ft |
| Daylight efficiencyshare within 35 ft of a facade | 81% |
| Deepest interior pointviability threshold is 80 ft | 51 ft |
| Windowless coreper floor — renovated but never rentable | 3,689 sq ft |
| Estimated homesat 750 sq ft average | 151 |
| Conversion cost$405/sq ft all-in on 175,173 sq ft | $70.9M |
| Gap before grantshortfall against completed value | $6.8M |
| Modeled RESIDE grantbelow the statutory cap | $9.1M |
| BuiltSan Jose does not publish a construction year with this data | — |
| ZoningDowntown San Jose | DC |
| Opportunity Zonecensus tract 06085500800, 2018 designation | Yes |
The plan: window line, shape and floor rhythm
36 ft of exterior wall for each home the screen estimates — enough for two- and three-bedroom homes across the plan.
The typical floor has 602 ft of exterior wall, and across 9 residential floors the building carries 5,418 ft of it in total, divided among the 151 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 16.8 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.
Why 111 N Market St scores 85 out of 100
Daylight efficiency 82, Interior depth 72, Scale 100, Finance 100 — each out of 100, then weighted.
Score components for 111 N Market 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% | 82 | 45% | 36.9 |
| Interior depthdeepest interior point 51 ft from a facade, scored from 80 ft down to 40 ft | 72 | 25% | 18.0 |
| Scale151 estimated homes, scored from 0 up to 150 | 100 | 15% | 15.0 |
| Financecompleted value covers conversion cost with 3% to spare, which tops out the component | 100 | 15% | 15.0 |
Most of what it earns comes from daylight efficiency, and what holds it back most is interior depth, at 72 out of 100: deepest interior point 51 ft from a facade, scored from 80 ft down to 40 ft.
What the conversion would cost
$405 per square foot all-in across 175,173 sq ft of converted floor, or $70.9M in total — about $470K for each of the 151 homes.
All-in cost per square foot for 111 N Market St: base cost plus the code work a change of use triggers.
| Base conversion cost | $260/sq ft |
|---|---|
| Seismic retrofit (change of use) | $45/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 | $405/sq ft |
That cost is charged across every converted square foot, including the 33,197 sq ft of windowless core, which has to be gutted, seismically braced and sprinklered like the rest of the building and then earns nothing. Against it the model sets a completed value of $425K a home, which for 151 homes is $64.2M.
What would have to be true
A $6.8M gap before any grant, which the modeled $9.1M closes. What would reopen it soonest: circulation efficiency 3% down.
The shortfall before any grant is $6.8M. Closing it from the value side means each of the 151 homes finishing at $470K rather than the $425K the model assumes — 11% more. Closing it from the cost side means getting all-in cost down from $405 to $366 per square foot.
A modeled RESIDE grant of $9.1M moves that threshold to $410K a home. That is below the assumed value, which is why this building counts as penciling with the grant, at market rents — subject to it qualifying under the law's vacant-and-abandoned test, which this data cannot show.
Each of these, moved on its own, would be enough to undo that for 111 N Market St:
Single-assumption flip points for 111 N Market St, each holding the other three at their defaults.
| Circulation efficiencythe binding constraint — the least this building would need | 3% downto 78% |
|---|---|
| Average unit size | 3% upto 773 sq ft |
| Completed value per home | 4% downto $410K |
| Conversion cost per square foot | 5% upto $273/sq ft |
All four are sliders in the survey, where 111 N Market St re-scores against your own numbers.
How it compares in Downtown San Jose
111 N Market St ranks 13th of the 47 buildings screened here, against a median score of 77.
Its floor plate is better lit than 62% of them, and shallower than 72% of them at its deepest interior point. On size it is the 26th largest by estimated homes. The full survey of all 47 buildings ranks and maps every one of them, and the list by address links each to its own page.
Within the DC zone
13th of 40 zoned DC — the comparison that shares its rules, rents and streets.
40 of the screened buildings are zoned DC. 111 N Market St ranks 13th of them against a median score of 78. 24 score 70 or more, their median deepest interior point is 59 ft from a facade against this building’s 51 ft, and together they would hold an estimated 8,653 homes. The group’s top scorer is 1 Almaden Blvd, at 100.
Its nearest match in size: 111 W St John St
The screened building closest to 111 N Market St in converted floor area is 111 W St John St: 171,222 sq ft over 12 stories, against 175,173 sq ft over 10 here.
111 N Market St scores 85 to its 98, and with the size held roughly equal most of that shortfall comes from daylight efficiency: 82 out of 100 here, 100 there (92% of the floor area within 35 ft of a facade, scored from 40% up to 90%). On the money they part ways: 111 W St John St pencils without a subsidy, while 111 N Market St pencils only with the modeled RESIDE grant. The two stand about 200 ft apart.
Would it qualify for a RESIDE Act grant?
The model awards 111 N Market St $9.1M, 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.
This building does sit in census tract 06085500800, a 2018 designated Opportunity Zone, which Section 201 lets HUD favor — one of the few statutory priorities this screen can actually check.
Other buildings screened near 111 N Market St
The 4 closest the screen also covers, from 170 ft away. They are the colored outlines on the plan at the top of this page.
- 111 W St John St12 stories · 92% daylit · 168 estimated homes · scores 98/100 (Strong candidate)about 170 ft away
- 188 W St James St20 stories · 47% daylit · already a condominium buildingabout 350 ft away
- 201 N 1st St9 stories · 69% daylit · 237 estimated homes · scores 54/100 (Worth a feasibility study)about 450 ft away
- 43 N Market St5 stories · 50% daylit · 177 estimated homes · scores 29/100 (Unlikely)about 550 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.