Before You Build in Pasadena, CA: Permit & Rule Checklist (2026)

Pasadena requires a building permit from the Permit Center for any block wall over 48 inches of exposed height, per Municipal Code Section 14.03.060.B.1.b; shorter walls may instead need a zoning permit. Citywide standards in Section 17.40.180 then cap fence and wall heights at six feet along side and rear yards and four feet in the front setback, with tighter limits near street corners.

Retaining walls built to support cuts or fills on Pasadena hillside lots cannot exceed a cumulative height of 8 feet, and freeboard is capped at 6 inches and counted toward that limit. Taller walls need a licensed engineer, earth-tone materials and city approval under Municipal Code Section 14.05.250.

Pasadena caps fence and wall height by location on the lot: six feet in interior side and rear setbacks, four feet in the front setback, and just 30 inches within the driveway visibility triangle, under Zoning Code Section 17.40.180.B.2 for the RS and RM-12 districts.

Pasadena does not require neighbor consent for fence installation. Under California Civil Code, boundary fences are a shared responsibility. The good neighbor rule suggests the finished side face outward.

Swimming pool construction in Pasadena requires a building permit and may require a zoning permit for compliance with setback and coverage standards. Applications must demonstrate barrier compliance. Private recreational facilities may need a Minor CUP for lighting per PMC 17.50.210.

Hot tubs and spas in Pasadena require a building permit and must meet electrical and plumbing codes. Hard covers may satisfy barrier requirements. The CA Pool Safety Act applies to spas with water depth over 18 inches.

Pasadena lets homeowners convert an attached garage into a Junior Accessory Dwelling Unit or full ADU without meeting standard setbacks, as long as the converted space keeps its existing footprint. Section 17.50.275 treats a garage conversion as a 'conversion ADU' or Junior ADU location.

Pasadena allows one detached ADU, one attached or detached conversion ADU, and one Junior ADU per single-family lot in every zoning district that permits residential use. Section 17.50.275 caps new construction at 1,200 square feet detached and sets height limits between 16 and 25 feet depending on the type.

Backyard sheds, garages and other accessory structures in Pasadena residential zones answer to Section 17.50.250, which caps height at nine feet within two feet of a property line, allows up to 15 feet with a sloped setback, and limits total accessory floor area to 600 square feet or 6 percent of the lot, whichever is greater.

Pasadena bans burning weeds or rubbish to clear a property, public or private, under Section 8.48.120 of the weed abatement ordinance. The only alternative to hand or machine clearing is a fire-department-approved firebreak kept 25 feet from buildings and 10 feet from trees and shrubs, enforced by the fire chief.

Pasadena's Fire Prevention Code, amending 2024 International Fire Code Section 307.4.3, bars portable outdoor fireplaces from operating within 15 feet of a structure or combustible material and requires following the manufacturer's instructions. One- and two-family dwellings are specifically exempted from the setback under Section 14.28.050.

Removing a protected tree on private property in Pasadena requires a city permit under Municipal Code Section 8.52.070(B). The city manager must deny the permit unless one of six specific findings applies, and decisions are due within 15 business days of a complete application.

Pasadena Water and Power enforces water conservation measures year-round. Outdoor watering is limited to specific days and times. The city offers rebates for turf removal and drought-tolerant landscaping.

Pasadena has a strong urban forestry program. Property owners must maintain trees to provide clearance over sidewalks (8 feet) and streets (14 feet). City-owned street trees are maintained by the Public Works Department.