How Much Does a Natural Pool Cost to Build in 2026?

In 2026, the national average cost to build a natural pool is $100,000. Most homeowners spend between $75,000 and $150,000, with total costs shaped by pool size, purification zone design, and material choice. While the up-front investment is significant, natural pools typically cost far less to operate than traditional pools over time.

Natural Pool Cost Factors: What Determines the Price?

Natural pool costs run $50 to $100 per square foot, and your total bill depends on size, installation complexity, and ongoing maintenance. Natural swimming pools cost more on average than installing a traditional pool, so understanding which factors drive up costs helps you plan a realistic budget.

Size

Natural pools require you to plan for two distinct measurements: the total pool size, which includes landscaping and the water purification zone, and the swimming area itself, which typically accounts for 50% to 70% of the total footprint. A 1,000-square-foot pool with a 500-square-foot swimming area, for example, costs $50,000 to $100,000. Some builders integrate biological filtration directly into the walls or floor, but the surrounding landscaped area remains substantial regardless of the filtration approach.

The table below compares average natural pool costs across four total pool sizes, along with the swimming area for each:

Natural Pool Conversion

Converting a traditional pool to a natural pool is rarely straightforward and can cost as much as, or more than, building from scratch. Natural pools need significantly more space to accommodate both the swimming area and the purification zone, and their shape is often quite different from that of a conventional pool, which often means incurring the cost of removing the old pool, averaging $6,000. The price to excavate for a new pool ranges from $8 to $25per cubic yard, though prior excavation from your existing pool may reduce that portion of the work.

Permit

Building permits cost$250 to $2,000 when installing a natural pool, and your contractor will need to research local regulations covering pool construction, deck size, and water sourcing. In most cases, a natural pool requires permits similar to those for a traditional pool.

Location

Location shapes natural pool costs in several distinct ways. Hiring a pool contractor is often more complex and expensive in remote areas than in regions with an established pool-building industry. Your landscape's composition affects excavation speed and cost, while local cost of living influences both material and labor pricing throughout the project.

Pool Liner Types

Pool liner costs for natural pools range from $0.25 to $113 per square foot, depending on the material you choose. Synthetic options include traditional vinyl and fiberglass liners, while bentonite clay offers a natural alternative, and gravel is typically reserved for the water purification zone rather than the swimming area. Concrete is a strong choice for the swimming area because it is durable and highly customizable, and each of these options differs from standard pool finishes while still contributing to a balanced aquatic ecosystem.

The table below compares materials-only costs per square foot across five natural pool liner and construction materials, from basic liners to fiberglass:

Materials

Materials to build a natural pool from the ground up cost $30,000 to $49,000, and the table below breaks down costs by individual material type:

Pool Heater

Adding a pool heater can significantly extend your swim season if you live outside a consistently warm climate. Gas and propane pool heaters cost $1,500 to $6,000, while heat pumps run $2,500 to $7,500. A solar heater is the most natural-aligned option at $4,500 to $9,500 installed, and the long-term energy savings often justify the higher upfront investment.

Pool Design

Before putting in a pool, think carefully about how it will integrate with your property, since natural pool costs vary widely based on the design choices you make. Size, shape, depth, and the pool's interaction with the surrounding landscape all influence the final price. Natural pools can wind through a backyard and incorporate waterfalls, fish habitats, multi-tiered swimming areas, and varying depths, so the more features you add, the more your costs will climb.

Labor

Labor for a natural pool typically accounts for $8,000 to $10,000 or more of the total project cost, covering excavation, plumbing, electrical work, and water plant installation. The full build generally takes four to six weeks, and beyond your pool designer you may need to bring in specialists such as pool electricians, landscapers, and dedicated excavation teams.

Ongoing Natural Swimming Pool Costs

Maintenance

Natural pools demand the most attention during the establishment phase, but once plants are thriving and the water is self-filtering, they are generally easier to maintain than chlorinated pools. Pool maintenance costs$150 to $260 monthly, so hire a company experienced with natural pools to ensure the cleaning and upkeep are appropriate for your system.

Operating Costs

Natural pools have notably low operating costs because you do not need to purchase chemicals to keep the water safe for swimming. Your ongoing expenses are limited to running your pump and heater, and you can skip the cost of a pool cover since the water freezes naturally in winter without damaging the pool.

Repair

Repair needs for a natural pool typically involve maintaining or replacing equipment such as pumps and heaters. Over time, natural elements like boulders and rocks may also sustain damage and require attention.

How Much Does a Natural Pool Cost to Install Yourself?

Installing a natural pool yourself is possible, but it’ll require a lot of knowledge and experience. You’ll have to properly construct the swimming area and install the water purification area correctly. 

Otherwise, your pool isn’t going to have properly filtered water. Fixing a poorly made natural pool is likely to cost a lot, so unless you are extremely confident in your skills, it’s best to hire a pool installer near you.

If you decide to move forward with the DIY job, materials alone will run $30,000 to $49,000. However, it can cut down on costs if you have rocks and boulders you can use for your pool on your property. This cost estimate doesn’t account for renting heavy machinery, which you need a lot of experience to use safely. From excavation to leveling the ground to setting in large rocks and boulders if you choose to use them, you’ll need a variety of machines to get the job done.

Not to mention, you’ll need plumbing and electrical experience. If this all sounds too overwhelming, but you’re interested in DIYing parts of the job, the pool builder may be able to advise you on specific tasks that you can do yourself while they handle the bulk of the heavy lifting.

Cost of Common Natural Pool Add-Ons

These special add-ons increase the cost of your pool but can increase your enjoyment of the swimming area exponentially:

• Waterfalls cost $250 to $15,000, depending on the size and materials.

• Adding lighting to your pool costs $450 to $1,200.

• The cost of a swimming pool fence ranges from $1,100 and $12,000 on average.

• Retaining walls both in and around your pool will cost between $20 and $100 per square foot.

• Aquatic plants are crucial to many natural pools and cost between $10 and $100 per plant.

• Pool enclosures, while not as common for natural pools, cost an average of $12,000.

• Pool slides cost $1,000 to $15,000.

• Pool decks cost $3,000 to $12,000, with the most affordable decks in the 300 to 600 square foot range and the most expensive decks spanning over 900 square feet.

• Hot tub costs range from $2,000 to $35,000. The most affordable ones are above ground, while the more expensive hot tubs are inground.

You can add step-in pebble beaches, sculpted jumping boulders, and more to your natural pool. These add-ons usually drive up the cost of your pool from $75,000 to over $175,000, depending on the pool size and features you decide to add.

How You Can Save Money on Natural Pool Costs

The best way to save money on natural pools is by opting for a smaller size without special features. After you build out the pool, you might decide to add more features to your budget for pool remodel costs down the road.

During this time, you could add features like bubblers, waterfalls, and more. This helps you save money up-front and gives you more time to invest in additional add-ons.

Another option is to find a pool builder who is open to collaborating with you. They may be willing to do the hardest part of the job, like excavation and liner installation, while leaving other tasks to you, like installing all of the necessary plants in the water purification area.

Mizuki Hisaka contributed to this piece.