12 x 7 m lazy L pool
pool plan
An estate-class pool: resort presence at home, with room for swimming, play and lounging at the same time. At this size the supporting decisions matter as much as the basin — plan generous decks, a solid heat source and an automatic cover from day one, because every square metre of water is heated, treated and covered.
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.
Open in the 3D designerFree · no signup · runs in your browser
12 × 7 m — shown to scale
The numbers, computed
- Water surface
- 827 sq ft
- Water volume
- 27,769 gal (115.9 tons)
- Perimeter
- 116′ 2″
- Depth
- 3′ 11″–6′ 7″
- Excavation approx.
- 231 cu yd
- Fill time (garden tap)
- 3 days
- Skimmers needed
- 3×
- Heat pump size
- 126,000 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.
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.
| Construction | Installed cost | Note |
|---|---|---|
| Liner or membrane | €54,000–€93,000 | Over a block or concrete shell; the least expensive route to any shape. |
| Tiled concrete | €83,000–€139,000 | A poured shell finished in tile; built to any shape, the most durable finish. |
| One-piece fiberglass | Not made at this size | Fastest 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.
Questions about this plan
- How much water does the 12 × 7 m pool hold?
- About 27,769 gal (115.9 tons of water) at 3′ 11″–6′ 7″ depth — computed from the actual pool outline, not a rule of thumb.
- How long does it take to fill?
- Roughly 3 days 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 827 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 12 × 7 m lazy L pool cost to build?
- Roughly €54,000 to €139,000 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.
Similar pool plans
14 × 6 m · Rectangular
Estate pool32,517 gal · 904 sq ft
14 × 6 m · Rounded rectangle
Estate pool31,540 gal · 889 sq ft
14 × 6 m · Oval
Estate pool25,055 gal · 708 sq ft
12 × 7 m · L-shape
Estate pool25,886 gal · 733 sq ft
11 × 6.5 m · Lazy L
Estate pool23,698 gal · 704 sq ft
12 × 6 m · Rectangular
Estate pool27,930 gal · 775 sq ft
Go on — put a pool in your garden.
Open the designer and see it in 3D tonight. Free, no signup.
Start designing — it's freeFree · no signup · runs in your browser