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7 x 5 m lazy L pool

pool plan

Family pool

A full family pool: a shallow end where kids stand and games happen, a proper deep end for diving-free swimming, and enough length that two people can swim without negotiating. This is the most-built size class in private gardens for a reason.

The lazy L angles the junction between its two legs instead of meeting at 90°, which relaxes the whole composition. You get the L-shape's zoning — swim leg plus shallow leg — with a softer, more organic footprint that sits comfortably in informal gardens and on sloping sites.

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7 x 5 m lazy L pool

7 × 5 m — shown to scale

The numbers, computed

Water surface
344 sq ft
Water volume
11,077 gal (46.2 tons)
Perimeter
72′ 7″
Depth
3′ 11″–5′ 11″
Excavation approx.
93 cu yd
Fill time (garden tap)
28 hours
Skimmers needed
2×
Heat pump size
51,000 BTU/h

Figures are computed from the sampled pool outline and the plan's depths — the same geometry the 3D designer uses. Excavation includes shell and working allowance; your site conditions may differ.

Also in US sizes: 16 × 32 ft

What it costs to build

A rough installed-cost range per construction type, at this size — the pool itself, with basic coping. Not a quote.

ConstructionInstalled costNote
Liner or membrane€30,000–€50,000Over a block or concrete shell; the least expensive route to any shape.
Tiled concrete€45,000–€74,000A poured shell finished in tile; built to any shape, the most durable finish.
One-piece fiberglassNot made at this sizeFastest to install; limited to sizes and shapes a mould exists for.

Rough 2026 estimates for the pool installed with basic coping — excavation, shell and basic equipment. Excludes deck, fencing, landscaping, heating and permits, all of which vary by site and by builder; get real bids before budgeting from these figures.

How pool cost is built upFiberglass vs. concrete pools

Questions about this plan

How much water does the 7 × 5 m pool hold?
About 11,077 gal (46.2 tons of water) at 3′ 11″–5′ 11″ depth — computed from the actual pool outline, not a rule of thumb.
How long does it take to fill?
Roughly 28 hours from a standard garden tap (~6.6 GPM). A water delivery service fills it in a few hours.
Is this size right for my garden?
The water surface is 344 sq ft; plan roughly 1.5–2× that footprint including the surrounding deck. Open the plan in the designer and set your own deck margins to see the full footprint.
Can I change the depth or edge type?
Yes — open the plan in the designer and adjust depths, edge system (skimmer, deck-level overflow or raised), finishes and accessories freely.
How much does the 7 × 5 m lazy L pool cost to build?
Roughly €30,000 to €74,000 installed at this size, depending on construction type — before deck, fence, landscaping, heating or permits. See the cost table above for the range per type.

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