Alpharetta, GA Fire Regulations: Smoke Detectors (2026)

Chapter 20's fire prevention standards for multifamily housing, Article II, apply under Section 20-34 to 'multifamily housing with three or more units and containing three or less stories.' Within that scope, Section 20-38(a) requires 'an approved single station smoke detector, powered by the house electrical system,' installed 'in every living unit,' plus 'additional detectors located in each exit corridor every 30 feet,' and directs that 'for additional protection, a battery-powered backup detector is required' on top of the hardwired unit. The same section separately governs egress: every living unit must have access to at least two separate exits remote from each other under the Life Safety Code the city has adopted, unless one of three listed exceptions applies, covering ground-level or direct-to-yard exits, buildings of four units or fewer per floor with a smoke-proof tower, or three-story-or-less buildings with one-hour fire separation and enclosed stairways.

Single-family and two-family homes fall instead under the International Residential Code the city adopts as a state minimum standard code in Section 8-29(a)(1)(f), which carries its own smoke-alarm placement rules rather than the corridor-spacing standard written specifically for Chapter 20's multifamily buildings. The director of public safety is responsible for enforcing Chapter 20 under Section 20-11, with authority to cite violations and impose penalties under Section 1-8.