Douglas County zones livestock by "animal units." A horse, cow, mule, or llama counts as 1 unit; miniature horses, swine, sheep, goats, or alpacas count 4-to-1. On ER and RR parcels the density limit is one animal unit per half-acre.
Section 2405 of the Douglas County Zoning Resolution sets animal units for hoofed livestock: horse/mule/cow/llama = 1 unit; miniature horse/swine/sheep/goat/alpaca = 4 = 1 unit; young animals under 6 months don't count. Density limits: ER zone and nonconforming 2.3–4.49-acre lots allow one animal unit per ½ acre (§2406); RR and 4.5–8.9-acre lots the same (§2407); A-1/LRR of 9+ acres place no limit on owner-kept livestock (§2408–2409). Barns and corrals must meet livestock setbacks (25–100 ft by lot size, §2411). Note Colorado is a "fence-out" state: under C.R.S. §35-46-102 a landowner recovers for livestock trespass only if a lawful fence was maintained.
Exceeding animal-unit density, keeping livestock on undersized or wrongly zoned lots, or violating setbacks is enforced by Douglas County Planning under the Zoning Resolution.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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