Where your Denver-metro city's own code allows artificial turf, side by side

State law hands this question to your city

We covered Colorado's state turf statute on another page: SB24-005, as amended by HB25-1113, restricts nonfunctional artificial turf on commercial, institutional and HOA-common property, and leaves single-family homes alone at the state level. What the state law does not do is set one rule for every Front Range address. C.R.S. 37-99-103(4)(d) lets a local entity be more stringent than the state floor, and each city below has used that power differently.

That means your city's own landscape code, zoning ordinance or municipal code — not the state statute — decides where turf can go, what it has to be made of, and how you have to maintain it. We pulled the current code text for seven Denver-metro cities and read each one directly. Below is what each one says, in its own words, with the section number so you can verify it yourself before a layout is drawn.

Arvada: backyards are open, front yards need an exception

Arvada's Land Development Code, Section 4-6-7-2, treats artificial turf as inorganic ground cover, which generally cannot serve as a permanent primary ground cover in a landscaped area. The code then carves out three exceptions: turf used for an approved recreational field or common amenity like a clubhouse, turf used in a backyard or side yard that is not in public view, and a putting green up to 400 sq ft in a side or rear yard even if it is in public view.

"Public view" is defined in the same section to include anywhere visible from a street, sidewalk, park or trail — so a front yard install generally needs to fit one of the named exceptions. Single-family and duplex lots in a subdivision of nine or fewer lots are exempt from the landscaping article altogether under Section 4-6-3-1, though the code doesn't tell a homeowner how to count that from the outside; Arvada's Planning Division is the office to ask. See our Arvada turf page for the neighborhood-level detail.

Brighton: a 20% front-yard cap, a fully open backyard

Brighton's Land Use & Development Code, Section 8.02, sets a specific number most of these cities don't: for a detached house, duplex or row house, artificial turf in the frontage area is capped at 20 percent of that area. The backyard of those same building types has no such cap — it may be irrigated turf, water-wise landscape, non-living material, native seed, artificial turf, or any combination.

Every other building type and development site limits turf, living or synthetic, to designated recreation areas the Director approves. Section 8.04 adds a build spec: the turf and any underlayment need a minimum percolation rate of 5 inches per hour, the liner has to stay permeable so water reaches the soil below, and the city expects it cleaned, debris-free and replaced once it stops simulating natural infiltration. Full detail on our Brighton turf page.

Lafayette: allowed for use, but it won't count as required landscaping

Lafayette's approach is different in kind, not just degree. Municipal Code Section 26-19-5(c)(1)b.17 states plainly: "Artificial plants, artificial grasses, and other artificial plant material are prohibited as a means of complying with these landscaping regulations," then adds in the same sentence that they are "not entirely prohibited" and may be used for athletic fields and other uses — they simply don't satisfy the code's landscaping requirement.

That requirement matters because Section 26-19-5(d)(3)a.1 sets a 75 percent live-material minimum for the front yard of a home. Artificial turf can sit in a Lafayette yard; it just can't be the material that gets a landscape plan approved where live planting is required. This section applies to new development that came after March 2004, and Lafayette has a new Land Use Code in the adoption process, so a 2026 project should confirm the current section number with the city before finalizing a plan.

Northglenn: a detailed spec, and it does count toward your landscaped area

Northglenn Municipal Code Article 11-4, Section 11-4-7(f) is the most detailed of the seven. It requires cut-pile infill turf manufactured from polypropylene, polyurethane or a blend of the two, stitched onto a polypropylene or polyurethane backing. Indoor or outdoor carpeting used in place of artificial turf is not permitted, and turf can't go on a slope greater than six percent. It has to be green, similar to natural grass.

The code also lists required upkeep by name: cleaning and sanitizing with biodegradable products, brushing and debris removal, repairing depressions to keep an even surface, and replacing the turf once maintenance can no longer keep it simulating healthy living turf. One point in a homeowner's favor: under this code, artificial ground cover can count toward the property's required landscaped area, unlike in several neighboring cities. See our Northglenn turf page.

Westminster: generally prohibited, with a specific carve-out for houses

Westminster's rule reads the opposite direction from Arvada's. Its 2004 Landscape Regulations state that "the use of artificial turf is generally prohibited, except for use in single-family detached or duplex lot yard areas not adjacent to a street, or public or private park or open space." The city says it will consider other exceptions case by case for sports fields and similar limited applications.

Where it is allowed, Westminster expects it "installed according to industry specifications and maintained in a manner to mimic a healthy living turf," with replacement required once it stops looking that way. One flag worth raising directly: this document is dated 2004. We have not confirmed with Westminster Planning whether it is still the current regulation, so ask before you finalize a layout in that city — details on our Westminster turf page.

Castle Rock: a square-footage cap on new homes, no front yard turf

Castle Rock's rule is tied to construction date rather than yard visibility. Under the town's ColoradoScape requirement, Ordinance No. 2022-025, homes permitted and built after January 1, 2023 get no artificial turf in the front yard, and no more than 500 sq ft of it in the back yard. Builders submit landscape plans, which the Town reviews and which set a corresponding water budget for the lot.

A homeowner designing their own landscape can get up to three reviews from the town at no charge, though the water budget itself doesn't change based on design choices. What we have not confirmed is whether artificial turf square footage counts toward that water budget the way irrigated turf does — Castle Rock Water is the office to ask before ordering material. See our Castle Rock turf page.

Where the record is thinner, and what to do about it

Aurora's Unified Development Ordinance has a detailed artificial turf standard at 146-4.7.3.B.11 — front-yard turf allowed with HOA or Title 32 district approval outside the water-wise landscape option, sports fields and commercial uses allowed, and specific bans in curbside planting areas, street frontage buffers and dog parks. The catch: we could not open the current live version of that code text in September 2026. The most recent readable copy is a July 2023 archive, current through Ordinance 2022-75, so we're citing that snapshot rather than the present-day page. Confirm the current text with Aurora Planning before relying on it.

Thornton does have a placement rule, though we found it reproduced in a rebate document rather than on the town's own code page. Thornton Water's 2026 artificial turf rebate rules reprint a figure the PDF labels "Figure 452.1 from Thornton City Code": rear yards and enclosed side yards may have artificial turf with no limitation, while front yards and unenclosed side yards cap it at 25 percent of the landscape area. The same document ties compliance to Thornton's general landscape maintenance code and its plant-material sections. We have not opened Thornton's own code pages directly to confirm this figure is still current, so confirm the section number with Thornton Planning before you finalize a layout.

And we have not checked every Denver-metro city against its own code — this page covers seven cities in full plus what we could verify for Aurora and Thornton. If your city isn't listed, the pattern above still holds: ask your city's planning or community development department for the current landscape or zoning section on artificial turf, get the section number, and read it yourself before a layout is finalized. We'll measure your yard and build the plan around whatever your city's code allows — call 303-349-2368.