373 W Julian St
373 W Julian St is a 7-story building in Downtown San Jose with 69% of its floor area within daylight reach of a facade. This screen estimates 142 homes and scores it 62 out of 100 for office-to-residential conversion suitability.
CA-18 · Screened 2026-09-12 · Worth a feasibility study
Where 373 W Julian St is
Its block in Downtown San Jose, drawn from San Jose's own building outlines and street centerlines.
- Already housing
- Not screened
- 373 W Julian St
This building does not pencil at default assumptions, even with a modeled RESIDE Act grant.
Every floor carries 9,846 sq ft of windowless core — area that must be gutted, seismically braced and sprinklered but can never be rented as an apartment. Across 6 residential floors that is 59,074 sq ft of cost carrying no revenue.
Modeled conversion metrics for 373 W Julian St, 2026-09-12.
| Suitability scoreWorth a feasibility study | 62 / 100 |
|---|---|
| Storiesfrom 87 ft LiDAR height ÷ 12 ft floor-to-floor | 7 |
| Floor plateper floor, from the city footprint | 32,108 sq ft |
| Daylight efficiencyshare within 35 ft of a facade | 69% |
| Deepest interior pointviability threshold is 80 ft | 65 ft |
| Windowless coreper floor — renovated but never rentable | 9,846 sq ft |
| Estimated homesat 750 sq ft average | 142 |
| Conversion cost$405/sq ft all-in on 192,646 sq ft | $78.0M |
| Gap before grantshortfall against completed value | $17.7M |
| Modeled RESIDE grantbelow the statutory cap | $8.5M |
| BuiltSan Jose does not publish a construction year with this data | — |
| ZoningDowntown San Jose | CIC |
| Opportunity Zonenot in a 2018 designated tract | No |
The plan: window line, shape and floor rhythm
34 ft of exterior wall for each home the screen estimates — enough for two- and three-bedroom homes across the plan.
The typical floor has 810 ft of exterior wall, and across 6 residential floors the building carries 4,857 ft of it in total, divided among the 142 homes this screen estimates.
Its plate is moderately compact at 0.62: 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 23.7 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.
Why 373 W Julian St scores 62 out of 100
Daylight efficiency 59, Interior depth 37, Scale 95, Finance 80 — each out of 100, then weighted.
Score components for 373 W Julian St. Points are the subscore times its weight.
| Component | Subscore | Weight | Points |
|---|---|---|---|
| Daylight efficiency69% of the floor area within 35 ft of a facade, scored from 40% up to 90% | 59 | 45% | 26.4 |
| Interior depthdeepest interior point 65 ft from a facade, scored from 80 ft down to 40 ft | 37 | 25% | 9.3 |
| Scale142 estimated homes, scored from 0 up to 150 | 95 | 15% | 14.2 |
| Financeremaining gap is 12% of conversion cost, scored from 60% down to 0% | 80 | 15% | 12.1 |
Most of what it earns comes from daylight efficiency, and what holds it back most is interior depth, at 37 out of 100: deepest interior point 65 ft from a facade, scored from 80 ft down to 40 ft.
What the conversion would cost
$405 per square foot all-in across 192,646 sq ft of converted floor, or $78.0M in total — about $549K for each of the 142 homes.
All-in cost per square foot for 373 W Julian 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 59,074 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 142 homes is $60.4M.
What would have to be true
A $17.7M gap before any grant, $9.2M after the modeled one. The smallest single change that would close it: average unit size 12% down.
The shortfall before any grant is $17.7M. Closing it from the value side means each of the 142 homes finishing at $549K rather than the $425K the model assumes — 29% more. Closing it from the cost side means getting all-in cost down from $405 to $313 per square foot.
A modeled RESIDE grant of $8.5M moves that threshold to $489K a home. That is still above the $425K assumed, leaving $9.2M uncovered, which is why the grant does not unlock this one.
Nor do all four levers have to move. For 373 W Julian St, one alone would close the gap at:
Single-assumption flip points for 373 W Julian St, each holding the other three at their defaults.
| Average unit sizethe binding constraint — the least this building would need | 12% downto 664 sq ft |
|---|---|
| Circulation efficiency | 13% upto 90% |
| Completed value per home | 15% upto $489K |
| Conversion cost per square foot | 18% downto $212/sq ft |
All four are sliders in the survey, where 373 W Julian St re-scores against your own numbers.
How it compares in Downtown San Jose
373 W Julian St ranks 42nd of the 82 buildings screened here, against a median score of 64.
Its floor plate is better lit than 45% of them, and shallower than 50% of them at its deepest interior point. On size it is the 59th largest by estimated homes. The full survey of all 82 buildings ranks and maps every one of them, and the list by address links each to its own page.
Its nearest match in size: 333 W Julian St
The screened building closest to 373 W Julian St in converted floor area is 333 W Julian St: 192,066 sq ft over 7 stories, against 192,646 sq ft over 7 here.
The two land within a few points of each other — 62 here, 61 there — so at this size the screen reads them as much the same prospect. On the money they sit in the same place: each falls short even with the modeled grant. The two stand about 500 ft apart.
Would it qualify for a RESIDE Act grant?
The model awards 373 W Julian St $8.5M, 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 373 W Julian St
The 4 closest the screen also covers, from 310 ft away. They are the colored outlines on the plan at the top of this page.
- 353 W Julian St9 stories · 65% daylit · 204 estimated homes · scores 53/100 (Worth a feasibility study)about 310 ft away
- 333 W Julian St7 stories · 69% daylit · 140 estimated homes · scores 61/100 (Worth a feasibility study)about 460 ft away
- 201 Bassett St6 stories · 78% daylit · 104 estimated homes · scores 76/100 (Strong candidate)about 670 ft away
- 199 Bassett St6 stories · 42% daylit · already an apartment buildingabout 880 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.