1017 Market St

Where 1017 Market St is

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

The plan: window line, shape and floor rhythm

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

The typical floor has 526 ft of exterior wall, and across 5 residential floors the building carries 2,631 ft of it in total, divided among the 58 homes this screen estimates.

Its plate is moderately compact at 0.50: 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 11.6 homes per floor, repeated on every residential floor, since this building's outline does not change as it rises.

Why 1017 Market St scores 91 out of 100

Daylight efficiency 100, Interior depth 100, Scale 39, Finance 100 — each out of 100, then weighted.

Most of what it earns comes from daylight efficiency, and what holds it back most is scale, at 39 out of 100: 58 estimated homes, scored from 0 up to 150.

Built in 1909

San Francisco records this building as going up in 1909, 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 99% daylight figure above deserves.

What the conversion would cost

$405 per square foot all-in across 55,115 sq ft of converted floor, or $22.3M in total — about $385K for each of the 58 homes.

That cost is charged across every converted square foot, including the 293 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 58 homes is $21.2M.

What would have to be true

A $1.1M gap before any grant, which the modeled $3.5M closes. What would reopen it soonest: circulation efficiency 9% down.

The shortfall before any grant is $1.1M. Closing it from the value side means each of the 58 homes finishing at $385K rather than the $366K the model assumes — 5% more. Closing it from the cost side means getting all-in cost down from $405 to $385 per square foot.

A modeled RESIDE grant of $3.5M moves that threshold to $325K a home. That is below the assumed value, which is why this building counts as unlocked by the grant — 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 1017 Market St:

All four are sliders in the survey, where 1017 Market St re-scores against your own numbers.

How it compares in Downtown San Francisco

1017 Market St ranks 61st of the 205 buildings screened here, against a median score of 87.

Its floor plate is better lit than 70% of them, and shallower than 66% of them at its deepest interior point. On size it is the 165th 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 South of Market and the C-3-G zone

4th of 14 in South of Market, 3rd of 22 zoned C-3-G — the comparison that shares its rules, rents and streets.

San Francisco places 14 of the screened buildings in South of Market. 1017 Market St ranks 4th of them against a median score of 82. 9 score 70 or more, their median deepest interior point is 45 ft from a facade against this building’s 38 ft, and together they would hold an estimated 2,045 homes. The group’s top scorer is 431 Natoma St, at 100.

22 of the screened buildings are zoned C-3-G. 1017 Market St ranks 3rd 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 38 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: 20 California St

The screened building closest to 1017 Market St in converted floor area is 20 California St: 55,275 sq ft over 7 stories, against 55,115 sq ft over 6 here.

The two land within a few points of each other — 91 here, 91 there — so at this size the screen reads them as much the same prospect. On the money they sit in the same place: each pencils only with the modeled RESIDE grant. The two stand about 5,900 ft apart.

Would it qualify for a RESIDE Act grant?

The model awards 1017 Market St $3.5M, 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 1017 Market St

The 4 closest the screen also covers, from 340 ft away. They are the colored outlines on the plan at the top of this page.

• 1059 Market St
  6 stories · 100% daylit · 47 estimated homes · scores 90/100 (Strong candidate)
  about 340 ft away
• 979 Market St
  6 stories · 82% daylit · 75 estimated homes · scores 75/100 (Strong candidate)
  about 370 ft away
• 42 Golden Gate Ave
  7 stories · 72% daylit · 118 estimated homes · scores 61/100 (Worth a feasibility study)
  about 390 ft away
• 1067 Market St
  6 stories · 100% daylit · 42 estimated homes · scores 89/100 (Strong candidate)
  about 420 ft away