130-132 9th Ave, San Francisco, CA 94118

The two-unit residential building at 130-132 9th Avenue, owned by Wang Yale & Shi Tianen, is a two-story flats and duplex structure built in 1909 in the Lake-Presidio neighborhood. The property has undergone significant renovations and improvements over the past several years, with the most substantial work occurring between 2018-2019 when comprehensive updates were made throughout the building including kitchen and bathroom remodels, installation of new balconies, and window replacements. A notable feature added during this period was the installation of a solar PV system with batteries in September 2020, comprising 13 panels with a capacity of 4.42 kW.

The building received modern amenities including an elevator installation, but this particular permit was withdrawn and modified to revise room configurations and adjust certain features. The property has shown proactive maintenance and upgrading of systems, including the installation of new electrical meters, comprehensive plumbing updates including the installation of new water heaters and radiant heating systems, and a natural gas fireplace. While there was one building complaint in 2010 regarding unpermitted plumbing work, this was quickly resolved within one month. Recent maintenance issues have primarily involved external concerns such as parking violations and a sewage backup in 2020, though these do not directly reflect on the building's condition.

The building's most recent significant modifications consisted of upgrading various systems and improving energy efficiency, with no active building violations or complaints on record since 2010. The property has maintained compliance with all building codes and regulations since resolving the 2010 plumbing issue, with all major renovation permits properly completed or modified. Recent 311 calls primarily relate to external matters including parking violations, tree damage, and general street maintenance, rather than building-specific issues. The records indicate careful attention to both interior and exterior maintenance, with particular focus on modernizing systems and improving energy efficiency through solar power installation.