Zoning board OKs backyard brewing at 21 Auburn Street with strict limits

The Concord Zoning Board of Adjustment on Tuesday granted a special exception permitting a major home occupation for home‑based brewing at 21 Auburn Street, allowing an owner‑operated one‑barrel brewing system in a temporary accessory structure in the backyard under strict conditions.

The couple who applied, Stefan Williamson and Hillary Ann Adams, told the board they want to move their 1‑barrel system from the basement to a temporary outdoor structure so they can obtain a health‑and‑safety permit and, if the hobby develops, sell small amounts at farmers markets or otherwise deliver to local vendors. “The structure will be at absolute max 13 by 13 feet and 7 feet tall,” Williamson said, and he told the board he expects to brew at most twice a month if time permits. He said a steam condenser and a sensor stack would control vapors and odors.

Neighbors spoke on both sides of the issue. Robert Moses and Tim Robson testified in favor, saying they live nearby and do not expect on‑site sales, truck deliveries or aesthetic impacts because the structure is screened by mature trees. Several neighbors, including Teresa Rosenberger, Maura Weston, Lacey Culligan and Eric Rosenberger, urged denial or strong conditions, citing concerns about precedent, traffic and the character of the South End.

Why it matters: The board’s decision interprets Concord’s major home‑occupation rules (Article 28.5.30) and balances neighborhood character against the applicant’s stated, limited commercial intent. The case drew an unusually large public turnout for a single home‑occupation request and clarified how the city will treat small‑scale food and beverage production in residential zones.

Details of the approval: The board voted 4‑1 to grant the special exception, adopting the applicant’s proposed findings and adding conditions that the use be limited to the representations made at the hearing. The motion — moved by a board member who opened the public deliberations — limited the operation to owner‑occupancy, with no non‑owner employees, no on‑site sales of beer and no business signage. The dissenting vote was recorded by one board member who said the change was not appropriate for that location.

Applicant’s case: Williamson provided technical details about the system and operations: a single brew yields 31 gallons; with his stated maximum of two batches per month the absolute maximum monthly production would be 62 gallons. He said cleaning uses about 10 gallons of water per cleaning and that glycol chillers used for conditioning are minimal noise; he and Adams emphasized they would hand‑deliver product rather than accept commercial deliveries or maintain on‑site inventory for sale. Adams stressed the applicants’ ties to the neighborhood and invited neighbors to inspect the planned structure.

Opposition and conditions sought: Opponents pressed broader concerns that granting an exception could create a precedent for manufacturing, warehousing or retail uses in single‑family districts, and asked the board to require conditions such as an expiration date, matching exterior cladding and limits on deliveries. Code enforcement staff and the board noted that the zoning text for major home occupations includes a range of standards — limits on employees, floor area and parking, and prohibitions on warehousing — that guided the discussion.

What the board decided: The board majority emphasized that the ordinance permits major home occupations when the standards are met and that the applicants’ representations and offered conditions reduced neighborhood impacts. The approval is expressly limited to the use and operating parameters described at the hearing; any significant change (for example, on‑site retail, employees other than the owner, larger structure, or routine commercial deliveries) would require return to the board.

Next steps: The applicants must comply with the stated conditions and any follow‑up building or health permitting required by city departments. The board’s decision will be recorded in the municipal file and becomes the controlling authorization for the use so long as the conditions are met.

Source: Concord Zoning Board of Adjustment public hearing transcript and staff materials.