Areas we cover

Highlands Ranch Lighting takes requests from Highlands Ranch, Lone Tree, Castle Pines, Parker and Centennial, Colorado. Each town page covers the lighting rules that apply there.

Highlands Ranch

Highlands Ranch is unincorporated Douglas County with about 103,000 people (2020 Census), and the HRCA guidelines decide what lighting goes in.

Lone Tree

Lone Tree is a home rule city of about 14,000 people (2020 Census) with its own outdoor lighting standards.

Castle Pines

Castle Pines is a home rule city of about 11,000 people (2020 Census), at roughly 6,560 feet.

Parker

Parker is a home rule town of about 58,500 people (2020 Census).

Centennial

Centennial is in Arapahoe County, with about 108,000 people (2020 Census).

Which rules apply where

Place	Who sets the rules	Key limit
Highlands Ranch	HRCA (unincorporated Douglas County)	ARC approval; landscape fixtures low voltage
Lone Tree	City code 16-30-20 + your HOA	Bulb not visible from adjacent property
Castle Pines	City Section 30 + your HOA	2,400 lumens per fixture unless shielded
Parker	Town LDO 13.08.110 + your HOA	900 lumens per fixture on single-family lots
Centennial	City LDC 12-6-702 + your HOA	All exterior lighting fully shielded