Solano County, CA Property Maintenance: Vacant Lot Maintenance (2026)

Unincorporated Solano County does not have a single standalone vacant-lot statute; instead, vacant parcels fall under several County Code chapters. Section 23-20 of Chapter 23 states that no person, owner, agent, or occupant of any lot, 'whether vacant or otherwise,' may permit an accumulation of solid waste to remain for more than seven days, and that recyclables and green waste must be removed often enough to avoid a nuisance; Environmental Health may require more frequent removal after investigation. Chapter 10 then makes any such condition a public nuisance (Section 10-12) abatable through the warning-to-order process, with the county empowered to abate and lien the costs if the owner does not act. Fire-season hazards on vacant land are addressed by Chapter 12.5, Article II: the county fire officer or designee may identify flammable material that creates a fire hazard, and the applicable fire protection district may clear or order the clearing of dry grass, stubble, brush, rubbish, litter, or other flammable material (Section 12.5-20); unrecovered clearing costs become a lien on the property (Section 12.5-21). Illegal dumping on a vacant lot is reachable under Chapter 23.5, the Litter Control Program, which makes it unlawful to deposit litter on any public or private property except in lawful containers (Section 23.5-13). The County Code does not set a specific maximum grass or weed height for vacant lots; clearance standards for vegetation are determined by the local fire protection district.