Evaporation is the single biggest, most consistent water cost of owning a pool in a desert climate, and the Southern Nevada Water Authority (SNWA) has published specific figures on it. According to SNWA's own pools and spas guidance, the average in-ground pool loses about 48.6 gallons of water per square foot per year to evaporation. For a typical Southern Nevada residential pool of around 470 square feet, that works out to roughly 22,800 gallons a year for an uncovered pool.

SNWA states that a pool cover can reduce evaporation by about 90 percent. SNWA's guidance also notes that professionals recommend keeping pool temperature around 78°F, since warmer water evaporates faster. Wind exposure also increases evaporation, which SNWA suggests managing with windbreak landscaping placed so it doesn't drop debris into the pool.

This is a real, current rule worth knowing, especially for anyone considering building a new pool: SNWA approved a resolution in July 2022 supporting a 600-square-foot surface-area limit on new residential pools, and the Las Vegas Valley Water District and other local jurisdictions adopted this through their own rule and code changes shortly after. The 600-square-foot limit is actually larger than the roughly 470-square-foot average existing pool size SNWA cites, so it isn't a restriction on typical pools; according to SNWA's own page, the measure specifically targets water savings from the top 25 percent of new pools constructed by size, rather than limiting typical new pool construction.

This limit applies to new pool construction. It does not require an existing pool to be resized, drained, or removed. A home with an existing larger pool built before the rule took effect is not affected by it. Anyone planning new pool construction should confirm current size limits and the permitting process directly with the applicable local jurisdiction (City of Las Vegas, Henderson, North Las Vegas, or Clark County) before finalizing plans, since local code details can vary and change.

A pool's pump and filtration system run regularly to keep water circulating and clean, which is an ongoing electricity cost separate from water use. NV Energy's PowerShift program includes pool pump discounts available through its network of approved pool professionals, aimed at encouraging more efficient variable-speed pump equipment over older, less efficient models. Specific rebate amounts and eligibility requirements change over time, so confirming current details directly through NV Energy is the reliable way to know what applies to a specific home rather than assuming a figure found elsewhere still applies.

A pool heater, if a home has one, adds a separate and often more significant energy cost, particularly if used to extend swimming into cooler months. The actual cost depends heavily on the heater type (gas vs. electric heat pump), how often it's used, and current utility rates, so it's not something this guide can respond with a single figure for.

Beyond water and energy, routine maintenance is a recurring cost: chemical balancing, filter cleaning or replacement, and periodic equipment servicing. SNWA's own guidance recommends washing cartridge filters when pump operating pressure rises by about 10 psi, and testing water chemistry frequently to keep it balanced.

Draining and refilling a pool has its own considerations. Per SNWA, no notification to the water authority is required to refill a pool, but doing so can noticeably raise a water bill for that billing period. Pool water must be drained to the sanitary sewer system, not to the street, storm drain, or a septic tank; a property on a septic system should contact its local jurisdiction directly for guidance before draining.

A few practical questions are worth asking before assuming a pool is a simple bonus rather than an ongoing cost center:

• How old is the pool's equipment (pump, filter, heater if present), and has it been regularly serviced? Aging equipment is a real, foreseeable near-term expense.
• Does the pool have a cover, and is it currently used? Given SNWA's stated 90 percent evaporation reduction from covers, this affects ongoing water cost meaningfully.
• Was any pool work (the pool itself, a heater, resurfacing) permitted, if it was added or modified after the home was originally built? Documentation supports both the listing and buyer confidence.
• If the community has an HOA, are there specific pool-related rules (fencing, equipment screening, hours) worth confirming directly with the HOA?

If you're relocating to the valley and weighing this alongside everything else on your list, my Relocation Checklist covers the broader move-in process.

Sellers should be ready to document the pool's age, equipment condition, and maintenance history, since that documentation gives buyers real information rather than a general impression. A pool's effect on a home's marketability and value isn't automatic or fixed; it depends on buyer demand in that specific neighborhood, the pool's condition, and how much a buyer weighs the ongoing cost of maintaining it, so a real estate professional familiar with the specific area is a more reliable source on that question than a general assumption.

Sellers considering removing an aging pool rather than repairing it may want to know that, per SNWA's own guidance, a pool currently in good working order may qualify for SNWA's Water Smart Landscapes Rebate when replaced with water-efficient landscaping; current eligibility and rebate amounts should be confirmed directly with SNWA.

My Seller's Guide covers the rest of the listing process this fits into.