A backyard with a swimming pool, surrounded by trees and lush greenery, featuring a small gazebo and a wooden deck with a chair and potted plants, under a bright blue sky with scattered white clouds.

Wild Natural Swimming Pools Designed for Life

In harmony with nature. No chemicals. Low tech.

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Hartfield Wild Swimming Pool Ponds

Would you like a magical watery ecosystem in your garden ?  

Would you like to swim at home all year round (if you can also brave the winter cold) ?

Our natural swimming ponds can be created in any sized patch of green space, or from an existing swimming pool.

Just the genius of nature is used to keep the water clean and fresh, without mechanical water pumps, just air pumps, and certainly no chemicals.

Natural Swimming Pools Designed and Built in Sussex and the South, typical size (11×4 swim zone) from £40k +vat

Hartfield Wild Swimming Pool Ponds

Transform your old swimming pool

Transform your field or garden

After
Before
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After
Before
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Transform your old swimming pool

Transform your field or garden

After
Before
↔
After
Before
↔

Our system will give you clean living water at any size; from a small plunge pool to a larger natural swimming pond.

Hartfield Wild Pools swimming pool design, measuring 15 meters by 5 meters, surrounded by lush green grass, trees, and flowers. The pool has a lily pad decoration with water lilies on its surface and chair decking.
A small pond surrounded by lush green plants including tall grasses, water lilies with pink flowers, and purple and yellow flowering plants, with a wooden deck on the left side and large rocks around the edge, reflecting sunlight.
Large wild swimming pond design by Hartfield Wild, for wild swimming in your back garden. UK, East Sussex Based.

Hartfield Wild Pools is a joint venture between an East Sussex based contractor and architectural designer, each with 25 years building experience.

We believe that natural pools should be more accessible in these times where ecology needs enhancing, heat needs managing and water needs preserving.

Good for our health and good for our ecosystem. It’s a win-win all round.

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Illustration of water lilies and tall grass growing in a pond.
Children swimming and splashing water in a lake or river, with a dock and lush green trees in the background.
Close-up of a blue and brown dragonfly perched on a green plant stem with a blurred green background.
A colorful kingfisher bird perched on a small branch, with vibrant blue, orange, and white feathers, and a long pointed beak.

Built with Care

& Craftsmanship

A small pond surrounded by green grass and tall plants with yellow flowers, reflecting the trees and blue sky with white clouds, and a wooden dock extending over the water.

We convert existing pools and create new natural swimming pools with exceptional attention to detail.

  • Careful removal and recycling of existing materials

  • Reviving the landscape and creating new wildlife habitats

  • High quality EPDM liner

  • Natural filtration beds with gravel and native planting

  • Aeration for gentle circulation and crystal clear water

  • Natural stone detailing and timber decks

  • Re-used materials wherever possible

A Better Way to Swim Naturally & Chlorine Free!

Oliver Perceval diagram of a pond planting zone for wild swimming pools. With labeled components including a swim zone, stand pipe with airstone , circulation pipe, land drain, shingles and gravel planting zones, liner and fleece, and retaining edge.

A natural swimming pool is more than a place to swim. It is a landscape that becomes part of your garden.

By combining native planting, natural filtration and gentle aeration, we create clear water without chlorine or harsh chemicals.

We are inspired by the air bubble and gravel margin designs of David Pagan Butler. Do look at his work here.

The result is a pool that is beautiful, sustainable and a pleasure to swim in throughout the seasons.

Annual running costs are about £40 compared to around £700 for conventional natural pools.

Why choose a natural swimming pool?

Outline of a green leaf.
Outline illustration of a water droplet with a curved line inside at the bottom right.

Natural Filtration

Clear Water

A thriving ecosystem all year round

Evolves with the seasons

No chlorine. No harsh chemicals.

Plants & gravel work with nature

Stylized sun icon with a circle in the center and rays extending outward.
Line drawing of a bird facing left, with simple outlines of its body, beak, eye, wing, tail, and one leg.

Beautiful All Year

Rich in Wildlife

Planting at The Heart

Plants are the heart of every natural pool.

Carefully selected aquatic and marginal plants naturally filter the water while creating a landscape that changes beautifully throughout the seasons.

Each scheme is chosen for colour, height, wildlife value and how they complement your garden.

Planting at The Heart

Pink water lily flower with green lily pads in a pond. - Hartfield Wild, for wild swimming in your back garden. UK, East Sussex Based.
Yellow water lilies blooming among green lily pads on a pond. - Hartfield Wild, for wild swimming in your back garden. UK, East Sussex Based.
Close-up of pink and white flowers with buds, set against a blurred background of green grass and water.
Yellow flowers with green leaves and stems.
Close-up of tall purple flowers, likely lavender, in a garden with green trees and grass in the background.

Flowering Rush

Yellow Floating Heart

Water Lillies

Marsh Marigold

Purple Loosestrife

Optional Features

Every project is unique.

We can integrate a range of features to enhance your pool and garden, creating beautiful outdoor spaces for relaxing and entertaining.

Line drawing of a water lily flower with detailed petals and a central seed area, floating on water with lily pads.
Small wooden outdoor shower with open door, showerhead, and window, situated in a green, wooded area.

Eco-Sauna

A peaceful outdoor scene with a clear swimming pool reflecting blue sky, surrounding greenery, trees, and rolling hills in the background under a partly cloudy sky.

Infinity Edges

A pond with water lilies and tall grass, next to a brick wall and a green rain barrel connected to a downspout, surrounded by green foliage and trees.

Rainwater Harvest

A garden scene with a tiered stone water fountain, a wooden bench, and lush greenery.

Flowforms

A pond with lily pads floating on the water surface, surrounded by green aquatic plants and tall grasses.

Bio-Mimic Filter

A small wooden bridge over a pond in a lush green park or forest area.

Timber Platforms

A visual overview titled 'The Design Journey' detailing four steps: 1. Initial Consultation, 2. Concept Design, 3. Detailed Design, 4. Construction. Each step includes a brief description of the process involved.
A backyard swimming pool surrounded by stone paving, lounge chairs, and lush green garden with trees and shrubs, overlooking a scenic countryside landscape.
A technical drawing of a landscape grading and drainage plan, showing a cross-section with details of ground levels, planting zones, and structural elements.