25 Hickory St

25 Hickory St is a 8-story building in Downtown San Francisco with 75% of its floor area within daylight reach of a facade. This screen estimates 115 homes and scores it 65 out of 100 for office-to-residential conversion suitability.

CA-11 · Screened 2026-10-12 · Worth a feasibility study

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

Also addressed as 11 Van Ness Ave, 25 Van Ness Ave, 27 Van Ness Ave, 27a Van Ness Ave, 27b Van Ness Ave, 29 Van Ness Ave and 35 Van Ness Ave: San Francisco’s address records place all 8 on this one footprint.

Where 25 Hickory St is

Its block in Downtown San Francisco, drawn from San Francisco's own building outlines and street centerlines.

1525 Market St: scores 27 out of 1002765OAK STHICKORY STFELL STMARKET STVAN NESS AVE11TH STFRANKLIN STN100 ftDowntown San Francisco
Suitability score
0–29
30–49
50–69
70–100
  • Already housing
  • Not screened
  • 25 Hickory St
25 Hickory St and the 1,000 ft of Downtown San Francisco 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. 25 Hickory St is outlined in its own score color at the outline it covers at ground level. Its windowless core is hatched. The inset places it among every building the screen covers.
63 ftAA50 ftDaylit 75%Core 5,028 sq ft
Floor plan: 75% of each floor sits within daylight reach of a facade. The shading is daylight, darkest at the windows and gone 35 ft in. The hatched area is windowless core: 5,028 sq ft per floor that must be renovated but can never be rented as an apartment. The dimension marks the deepest interior point, 63 ft from the nearest window. A–A is where the section beside it is cut.
No homesWindowless coreDaylit8 floors50 ft
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: 5,028 sq ft on the floor the screen scores, and 35,195 sq ft over 7 residential floors. 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.

Every floor carries 5,028 sq ft of windowless core — area that must be gutted, seismically braced and sprinklered but can never be rented as an apartment. Across 7 residential floors that is 35,195 sq ft of cost carrying no revenue.

Modeled conversion metrics for 25 Hickory St, 2026-10-12.

Suitability scoreWorth a feasibility study65 / 100
Storiesfrom 122 ft LiDAR (2010) height ÷ 12 ft floor-to-floor8
Floor plateper floor, from the city footprint20,480 sq ft
Daylight efficiencyshare within 35 ft of a facade75%
Deepest interior pointviability threshold is 80 ft63 ft
Windowless coreper floor — renovated but never rentable5,028 sq ft
Estimated homesat 750 sq ft average115
Conversion cost$405/sq ft all-in on 143,363 sq ft$58.1M
Gap before grantshortfall against completed value$16.0M
Modeled RESIDE grantbelow the statutory cap$6.9M
BuiltSan Francisco's own record of the construction year1911
ZoningHayes ValleyC-3-G
Opportunity Zonenot in a 2018 designated tractNo

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 598 ft of exterior wall, and across 7 residential floors the building carries 4,185 ft of it in total, divided among the 115 homes this screen estimates.

Its plate is moderately compact at 0.72: 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 16.4 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.

Why 25 Hickory St scores 65 out of 100

Daylight efficiency 71, Interior depth 43, Scale 77, Finance 74 — each out of 100, then weighted.

Score components for 25 Hickory St. Points are the subscore times its weight.

ComponentSubscoreWeightPoints
Daylight efficiency75% of the floor area within 35 ft of a facade, scored from 40% up to 90%7145%31.9
Interior depthdeepest interior point 63 ft from a facade, scored from 80 ft down to 40 ft4325%10.8
Scale115 estimated homes, scored from 0 up to 1507715%11.5
Financeremaining gap is 16% of conversion cost, scored from 60% down to 0%7415%11.1

Most of what it earns comes from daylight efficiency, and what holds it back most is interior depth, at 43 out of 100: deepest interior point 63 ft from a facade, scored from 80 ft down to 40 ft.

Built in 1911

San Francisco records this building as going up in 1911, which puts it in the pre-1920 stock.

As a rule, the era that converts most readily: load-bearing masonry, small floor plates laid out before deep-plan offices were possible, operable windows and generous floor-to-floor heights. The usual obstacles are not daylight but hazardous materials, lifts and bringing structure up to current code. That is the era’s general tendency rather than a finding about this building — the model reads an outline and a height, and can see nothing inside — but it is the first thing an architect would want to know, and it colours how much confidence the 75% daylight figure above deserves.

What the conversion would cost

$405 per square foot all-in across 143,363 sq ft of converted floor, or $58.1M in total — about $505K for each of the 115 homes.

All-in cost per square foot for 25 Hickory 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 35,195 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 $366K a home, which for 115 homes is $42.1M.

What would have to be true

A $16.0M gap before any grant, $9.1M after the modeled one. The smallest single change that would close it: average unit size 16% down.

The shortfall before any grant is $16.0M. Closing it from the value side means each of the 115 homes finishing at $505K rather than the $366K the model assumes — 38% more. Closing it from the cost side means getting all-in cost down from $405 to $294 per square foot.

A modeled RESIDE grant of $6.9M moves that threshold to $445K a home. That is still above the $366K assumed, leaving $9.1M uncovered, which is why the grant does not unlock this one.

Nor do all four levers have to move. For 25 Hickory St, one alone would close the gap at:

Single-assumption flip points for 25 Hickory St, each holding the other three at their defaults.

Average unit sizethe binding constraint — the least this building would need16% downto 632 sq ft
Circulation efficiency19% upto 95%
Completed value per home22% upto $445K
Conversion cost per square foot24% downto $197/sq ft

All four are sliders in the survey, where 25 Hickory St re-scores against your own numbers.

How it compares in Downtown San Francisco

25 Hickory St ranks 162nd of the 205 buildings screened here, against a median score of 87.

Its floor plate is better lit than 22% of them, and shallower than 24% of them at its deepest interior point. On size it is the 120th largest by estimated homes. The full survey of all 205 buildings ranks and maps every one of them, and the list by address links each to its own page.

Within the C-3-G zone

14th of 22 zoned C-3-G — the comparison that shares its rules, rents and streets.

22 of the screened buildings are zoned C-3-G. 25 Hickory St ranks 14th of them against a median score of 76. 13 score 70 or more, their median deepest interior point is 51 ft from a facade against this building’s 63 ft, and together they would hold an estimated 2,588 homes. The group’s top scorer is 40 Leavenworth St, at 92.

Its nearest match in size: 71 2nd St

The screened building closest to 25 Hickory St in converted floor area is 71 2nd St: 136,322 sq ft over 8 stories, against 143,363 sq ft over 8 here.

25 Hickory St scores 65 to its 69, and with the size held roughly equal most of that shortfall comes from interior depth: 43 out of 100 here, 54 there (deepest interior point 58 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 7,400 ft apart.

Would it qualify for a RESIDE Act grant?

The model awards 25 Hickory St $6.9M, 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 25 Hickory St

The 4 closest the screen also covers, from 460 ft away. They are the colored outlines on the plan at the top of this page.

  • 1525 Market St
    8 stories · 49% daylit · 238 estimated homes · scores 27/100 (Unlikely)
    about 460 ft away
  • 150 Hayes St
    6 stories · 76% daylit · 80 estimated homes · scores 64/100 (Worth a feasibility study)
    about 790 ft away
  • 875 Stevenson St
    10 stories · 67% daylit · 228 estimated homes · scores 58/100 (Worth a feasibility study)
    about 1,050 ft away
  • 32 9th St
    11 stories · 66% daylit · 547 estimated homes · scores 45/100 (Marginal)
    about 1,060 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.