Citizen Brewers in Grantville is a brew-on-premises facility and taproom at 5837 Mission Gorge Road, Suite A, in San Diego, offering the only DIY brewing experience in the city from an 1,800-square-foot space in the 92120 ZIP. Owner Judd opened the facility in 2015, and the concept lets customers design and brew their own beer on commercial-grade equipment with guided instruction — from first-time brewers working through a basic recipe to experienced homebrewers scaling up on production-level systems. The taproom side pours a rotating lineup of small-batch beers brewed on-site, and the tasting-room-only format means every beer on tap was made in the building, giving the draft list a variety and rotation rate that larger production breweries cannot match. The post-climb crowd from Grotto Climbing & Yoga a few blocks south on Mission Gorge Road filters into the taproom on weekday afternoons, drawn by the combination of craft beer and a low-key industrial space that fits the Grantville corridor's maker-and-builder character. Custom label printing is part of the bottling service — brewers submit their own label designs, and Citizen Brewers prints and applies them to the finished bottles, which must include the required government warning and a “Brewed and packaged at Citizen Brewers” line. The space accommodates up to 60 standing or 35 seated for private events, and the corporate team-building program positions brewing sessions as an alternative to the standard offsite dinner or escape-room format. Mission Gorge Road through Grantville stacks craft-beverage and food businesses for blocks, and the same corridor supplies the specialty proteins at Iowa Meat Farms half a mile north, where retail customers pair a meat run with a growler refill on the same errand loop. A dog-welcome patio, board games near the front door, and a kid-welcome policy keep the taproom accessible for the weekend family crowd that fills Grantville on Saturday and Sunday afternoons. Flights and growler refills round out the to-go options, and live music and DJ sets anchor the event calendar alongside the regular brewing appointments.