454 14th St, San Francisco, CA 94103

This 1908 multi-family residential building located in Mission Dolores, owned by Thelma Guillory, consists of two units and is classified as a Flats & Duplex structure. The property has undergone several significant improvements and faced some challenges over its history. Most notably, in 2024, major structural work is underway including a concrete slab and foundation upgrade with a permitted cost of $75,000.

Other recent improvements include a bathroom remodel (costing $15,000) and the installation of a residential metal security gate. The building has experienced security issues in the past, with a break-in in 2012 leading to door replacement, and subsequent violations regarding unpermitted window and door installations that required abatement proceedings, though these violations were resolved by April 2013. The property has seen consistent maintenance and improvement efforts, with multiple permits for bathroom remodeling, including associated plumbing and electrical work in 2024.

Recent infrastructure improvements and security upgrades suggest proactive management. The building's recent history (2022-2024) has primarily involved exterior maintenance matters, with several street cleaning and graffiti-related service requests, most of which were resolved satisfactorily. Planning records indicate a proposed significant future modification to the building, which includes raising the existing structure, converting the first floor, and adding a new two-story extension, though this is still in the submission phase as of the latest available data. The property's record shows a pattern of addressing violations and maintaining the structure, with particular attention to security and foundational stability in recent years.