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residentialintermediate

Convert a Pool into a Garden or Pond

In-Ground Swimming Pool → Garden or Pond

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Repurpose an unused in-ground swimming pool into a sunken garden, raised garden bed system, or natural koi pond instead of paying for expensive pool removal.

Cost Range

$5,000 – $25,000

Timeline

2–8 weeks

Materials Cost

$5,100

Permits Cost

$500

Estimates only. Costs shown are national averages and vary by location, year, project scope, and finish quality. Permit requirements differ by jurisdiction — always confirm with your local building department and get quotes from licensed contractors before starting.

Steps

1

Drain and Clean the Pool

Pump out all water and scrub the surfaces. Check local regulations — some areas require permits to drain pool water. Never drain directly into storm drains.

Estimated time: 2 days

2

Punch Drainage Holes

Drill or jackhammer several 2-inch holes through the pool floor to allow water drainage into the soil below. Without drainage, the pool will collect rainwater and become a swamp.

Estimated time: 2 days

3

Partial Fill with Rubble and Gravel

Fill the deep end 50-75% with clean rubble, broken concrete, or gravel. This reduces the amount of topsoil needed and creates a drainage layer. Do NOT use organic fill that will decompose and settle.

Estimated time: 5 days

4

Add Landscape Fabric and Topsoil

Layer landscape fabric over the rubble to prevent soil from washing into the drainage layer. Fill the remaining depth with quality topsoil mixed with compost.

Estimated time: 4 days

5

Build Raised Beds or Design Garden Layout

Build raised bed frames from cedar or galvanized steel on top of the fill. Design pathways, a small patio area, or a tiered garden taking advantage of the shallow and deep end levels.

Estimated time: 5 days

6

Plant and Irrigate

Install drip irrigation connected to a timer. Plant vegetables, herbs, flowers, or ornamentals. The sunken design provides natural wind protection and heat retention for extended growing seasons.

Estimated time: 3 days

Materials

MaterialEst. CostRequired
Clean Fill Material (rubble/gravel)$2,000Required
Topsoil and Compost Mix$1,500Required
Landscape Fabric$100Required
Cedar Raised Bed Lumber$600Optional
Drip Irrigation Kit$200Required
Plants and Seeds$300Required
Pathway Pavers or Stepping Stones$300Optional
Jackhammer Rental (1 day)$100Required

Permits

Pool Decommission Permit

Most cities require a permit to decommission a swimming pool. An inspector verifies proper drainage and fill.

$300

Utility Disconnect

Have the pool pump electrical circuit, gas heater line, and water supply properly disconnected by licensed contractors.

$200

Frequently Asked Questions

How much does it cost to convert a pool into a garden or pond?

The estimated cost ranges from $5,000 to $25,000, depending on your location, project scale, finish quality, and whether you hire professionals or do it yourself.

How long does it take to convert a pool into a garden or pond?

A typical conversion takes 2 to 8 weeks, covering 6 major steps including drain and clean the pool, punch drainage holes, partial fill with rubble and gravel, and more.

What permits do I need to convert a pool into a garden or pond?

You may need: Pool Decommission Permit (approximately $300); Utility Disconnect (approximately $200). Requirements vary by jurisdiction.

What materials do I need to convert a pool into a garden or pond?

Key materials include: Clean Fill Material (rubble/gravel) (~$2,000), Topsoil and Compost Mix (~$1,500), Landscape Fabric (~$100), Drip Irrigation Kit (~$200), Plants and Seeds (~$300), Jackhammer Rental (1 day) (~$100).

What is the difficulty level of this project?

This project is rated as intermediate. Some steps require professional help for plumbing, electrical, or structural work.

Tags

pool removalgardenbackyardlandscapepool conversionkoi pond