Title 20 Healdsburg Zoning Code · 2026-06 edition · ingested 2026-07-06 · Healdsburg In this part Chapter 20.04 — ENACTMENT AND APPLICABILITY Article I — Purpose and Applicability Article II Article III Article I — Zoning Districts Article II — Single-family Residential (R-1) Districts Article III — Multi-family Residential (RM) District Article VII — Industrial District (I) Article X — Residential Master Plan (RMP) District Article XI Article I — Hillside (H) Overlay Article II — Development Cluster (DC) Overlay Article I Article IV — Building Height Article VI Article VII Article VIII Article IX — Signs Article I — Residential-Related Regulations Article II Chapter 20.24