Southern Nevada Water Authority's rules apply the same way in Summerlin as anywhere else in the valley. Since a 2021 SNWA board resolution, new single-family construction can't include irrigated grass in either the front or back yard, according to SNWA's own current guidance. That applies to new construction; it doesn't require existing Summerlin homeowners to remove grass they already have.

The mandatory seasonal watering schedule also applies throughout Summerlin: irrigation is prohibited between 11 a.m. and 7 p.m. every day from May 1 through August 31, and watering is never allowed on Sundays, regardless of season, according to the Las Vegas Valley Water District's current schedule.

For the full conversion process, from turf removal to irrigation, my Desert Landscaping guide covers the general version that applies valley wide. This post focuses specifically on what changes once Summerlin's own design review layer gets added on top.

Summerlin includes several separate community associations, among them Summerlin North, Summerlin South, and Summerlin West, and each maintains its own Design Review Committee with its own published design guidelines. Regardless of which one governs a specific village, all exterior landscaping work, both hardscape like rock and walkways and softscape like grass, shrubs, and trees, requires that committee's approval before installation, according to each association's own guidelines.

Which of the three actually governs a given address isn't always obvious from the outside, since village boundaries don't line up neatly with compass directions the way the names suggest. A property's specific CC&Rs, provided at closing, name the governing association directly, and the HOA documents included in a resale listing's disclosure package will show it as well. For a home already under contract, the escrow or title company handling the transaction can typically confirm it directly if it isn't otherwise clear.

The specifics vary somewhat by association. Summerlin North's guidelines explicitly state that drought tolerant landscaping themes are encouraged to help conserve water, and all three generally expect some reasonable combination of softscape and hardscape rather than an all-rock yard. Because required percentages and approved plant lists differ by association, and sometimes by village within one, contacting the specific Design Review Office for your address is more reliable than assuming one association's rules apply community wide. As of this writing, Summerlin North's Design Review Office can be reached at (702) 838-5500 and Summerlin South's at (702) 791-4600, though offices and contact details change; confirming directly at summerlink.com is worth doing before relying on a number printed here. Summerlin West residents should confirm their office's current contact information the same way, since it wasn't independently confirmed for this post.

Each association publishes its own guidelines directly: Summerlin North's design guidelines, Summerlin South's design guidelines, and Summerlin West's design guidelines are all available as PDFs. For background on how the three associations are structured more broadly, beyond just landscaping, my Living in Summerlin overview covers that separately.

Design review approval is required, but according to Southern Nevada Water Authority's own guidance, most jurisdictions in the valley don't allow an HOA to prohibit water efficient landscaping altogether or require a homeowner to install grass. That same guidance notes an HOA can still require a landscape design plan for approval, and it may restrict certain materials, including artificial turf specifically. Because how this applies can depend on an association's own governing documents and the specific details of a project, reviewing your association's design guidelines directly, and speaking with an attorney if a disagreement comes up, is the more reliable path than relying on a general summary.

In practice, a complete submission matters more than anything else. A vague or incomplete plan gives a Design Review Committee a legitimate basis to ask for revisions; a detailed plan that already follows the applicable association's published guidelines is harder to turn down.

Because the process runs through two separate systems, SNWA's rules and Summerlin's association-specific design review, the order of operations matters. Confirming SNWA's current rebate and watering rules first, then submitting a complete design plan to the correct Design Review Office, tends to go more smoothly than starting construction and seeking approval after the fact. My Desert Landscaping guide walks through the physical conversion steps themselves, from turf removal to irrigation, once approval is in hand.

This also matters for buying and selling. A completed and association-approved landscaping conversion may appeal to some buyers and can eliminate the need for the next owner to complete the project themselves. If you're selling a home in Summerlin, my Seller's Guide covers that process in full. And if you're relocating to Summerlin and weighing water rules and design review requirements as part of a bigger move, my Relocation Checklist covers the rest of what a move involves.