Chino Hills, CA Noise from Specific Sources: HVAC & Mechanical Noise (2026)

250 of the Development Code defines "mechanical equipment" as any equipment, device, or machine located on the exterior of a structure that operates a system or amenity on the property, expressly listing heating, cooling, and venting (HVAC) among its examples, along with plumbing, pool/spa pumps and filters, whole-house fans, and energy storage systems; the definition specifically excludes generators, which the code regulates as their own category. 070 sets the setback for that equipment on a residentially zoned lot: mechanical equipment is not permitted in the front yard setback at all, and it must sit at least three feet from the rear, interior side, and street-side property lines, a tighter allowance than the five-foot clearance the same table gives fireplaces, fire pits, and built-in barbecues.

050, the City's residential design guidelines, and must independently comply with the City's noise standards. Together, the setback table and its screening note mean an HVAC contractor cannot simply place a condenser wherever it is convenient on a Chino Hills lot; the unit has to clear the three-foot line from the nearest property line, stay out of the front yard, and be visually screened if a passerby on the street or a neighboring right-of-way could otherwise see it.