Coop Ready Colorado Thornton
Hens allowed
Yes. Thornton allows backyard hens on a typical single-family home lot.
Only at single-family detached homes, not townhomes, duplexes or manufactured home parks. Backyard only, fenced so birds cannot leave, with one coop and birds inside from dusk to dawn.
Hen limit
6
Roosters
Banned
Permit
No
Coop placement
Coop at least 5 ft from side and rear property lines
Source linked These rules come from the source linked below. Confirm current details with the city.
Read the official Thornton rules ↗ Checked October 2026.
Will your coop fit in Thornton?
Draw your lot, your house and your neighbor's house on a satellite map, drop in a coop, and Coop Ready measures the distances and compares them with the Thornton rules above. Free, no account.
Backyard chicken questions in Thornton
How many chickens can I have in Thornton?
Up to 6 hens on a typical home lot.
Are roosters allowed in Thornton?
No. Thornton bans roosters on typical home lots.
Do I need a permit for backyard chickens in Thornton?
No. Thornton does not require a permit for a typical backyard flock.
How far does a chicken coop have to be from my neighbor in Thornton?
Where the coop can go in Thornton: coop at least 5 ft from side and rear property lines.
Can my HOA ban chickens if Thornton allows them?
Yes. HOA rules, deed restrictions and leases can be stricter than city code. Read yours before you build.
More Colorado cities
More from Coop Ready
- Rooster laws by city
- Cities that ban chickens
- HOA chicken rules
- Coop setback rules
- Permit site plan checklist
- Arizona chicken laws
- California chicken laws
- Colorado chicken laws
- Florida chicken laws
- Georgia chicken laws
- Oregon chicken laws
- Texas chicken laws
- Washington chicken laws
See every city on Coop Ready → · Coop size calculator · Chicken laws study · Backyard chickens 101
Coop Ready is a planning aid, not legal advice. City codes change, and zoning, HOA rules and your exact parcel can change what is allowed. Confirm with Thornton before you build.
