Windsor Zoning Intelligence

The TC and TC-AUFO designations (combined about 31 acres) govern the pedestrian-scale core that Windsor was designed around, allowing ground-floor retail, restaurants, and services alongside upper-floor residential and office uses. The AUFO suffix indicates an air-unit fractional ownership overlay on a portion of the TC land, which has specific implications for how residential units can be titled and sold. Developers should confirm which TC sub-area governs their parcel and what the AUFO conditions require.

Windsor's density ladder runs from Compact Residential (CR, 38 acres) through Medium Density Residential (MDR, 187 acres) up to a small High Density Residential (HDR) pocket, with Village Residential (VR, 202 acres) adding a traditional neighborhood character layer. California ADU laws and density bonus provisions apply citywide, and several PD-governed parcels also carry residential density allowances within their master plans. MDR is the primary platform for apartment and townhome product in the market.

Light Industrial (LI) at 197 acres and Heavy Industrial (HI) at 102 acres together represent nearly 300 acres of employment-designated land - a meaningful base for a Sonoma County market. LI is well-positioned for flex-industrial, food production, and tech-light manufacturing given Windsor's North Bay location. HI accommodates heavier fabrication and industrial uses. Infrastructure capacity - water, sewer, and truck access off Highway 101 - varies by parcel and should be confirmed early.

PD covers roughly 382 acres and reflects Windsor's history as a planned town where large tracts were master-planned and phased through specific agreements. Parcels within a PD area are subject to both the town's base zoning code and the specific PD plan, which may set its own use mix, building form, phasing, and public improvement obligations. Developers acquiring PD-zoned land must obtain the recorded plan to understand what has been entitled and what conditions remain outstanding.

Recreation (REC) at 319 acres and Open Space (OS) at 242 acres together account for a substantial greenbelt and park system woven through the town. Parcels adjacent to REC or OS tend to command premium residential values due to proximity to trails, parks, and visual buffers. However, developers should verify that OS and REC boundaries have not shifted through plan amendments, and confirm that no portions of a target site carry open-space easements or dedications that would reduce net developable area.