We Are San Francisco

Altbau to Open Large New Bakery on October 29

The 7,500-square-foot space at the end of a dedicated alleyway will feature a stone mill and late-night hours.

Updated on Oct. 27, 2026 in Baking

Screen-print poster illustration of a large industrial stone grain mill located on a warehouse mezzanine, evoking artisan baking traditions.
Altbau, a new 7,500-square-foot bakery founded by Chad Robertson, will open in San Francisco on October 29, 2026. AI Illustration. Upload story photo >

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Chad Robertson is set to open Altbau, a new 7,500-square-foot bakery, to the public on October 29, 2026. The expansive space will feature a stone mill on the second floor and capacity for 150 guests.

Why it matters

The bakery aims to serve evening commuter traffic, potentially shifting local habits by offering extended late-night hours on weekdays and weekends. It remains to be seen how the decision to forgo guest Wi-Fi will affect the space's use as a neighborhood meeting point.

Altbau will occupy a 7,500-square-foot space with a capacity for 150 guests versus the average local bakery footprint. Operational details regarding the proposed extension of late-night hours to 10 p.m. on weekdays and 2 a.m. on weekends are still being confirmed.

The players

Chad Robertson

The baker behind the new Altbau location.

The details

The bakery is equipped with a pizza oven, a six-burner stove, and a Rational combi oven to support its menu. Ingredients will be sourced from Brooklyn Granary and Cairnspring Mills, with plans to eventually mill einkorn on-site to reduce costs. Visitors can find the entrance at the end of a dedicated alleyway, and the space will offer a liquor license alongside its pastry counter and coffee station.

Timeline

  1. October 29, 2026: Altbau opens to the public.

  2. November 7, 2026: Altbau hosts the first day of a pop-up with Atelier September.

  3. November 8, 2026: Altbau hosts the second day of the pop-up.

Across the Bay

The bakery's move to offer evening service follows the pattern set by the city's ongoing initiative to support downtown and evening office recovery. This shift extends current local efforts to move away from daytime-only business models.

Starting October 29, 2026, you can visit the new bakery located at the end of the dedicated alleyway. Note that the space will not provide Wi-Fi, making it a destination intended for socializing rather than remote work.

The takeaway

Altbau aims to become a fixture for commuters and evening socializers alike, with plans to host community workshops and events. Keep an eye on the schedule for the first pop-up with Atelier September occurring in early November.

Further reading

For more on the city's evolving pastry scene, visit the Baking section.

Source note: This article includes information reported by Grub Street.

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Should local cafes and bakeries be required to provide free Wi-Fi for their customers?