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Mijas Costa, Costa del Sol · 2024

Infinity Pool Mijas

Type

Exterior

Surface

280 m² terrace + 9×4 m pool

Duration

14 weeks

Year

2024

Budget

Premium

Project Overview

A complete pool and terrace transformation at a Mijas Costa villa — from a cracked, algae-stained concrete pool and broken paved terrace to a 9×4 m infinity edge pool with cobalt blue Ezarri glass mosaic, a 280 m² travertine-effect porcelain terrace, and a frameless glass balustrade that preserves the unobstructed Mediterranean sea panorama. The new Astralpool LED RGB underwater lighting system allows the pool colour to be changed by app, from cool blue to amber. The full hydraulic, filtration and pool automation system was designed by our pool engineer for minimal maintenance.

01

Initial Survey & Engineering Brief

Infinity pool at sunset — cobalt blue mosaic and Mediterranean sea panorama

The original pool — a 6×3 m rectangular pool built in the early 1990s — had developed multiple structural cracks in the shell, leaking approximately 200 litres per day. The terrace paving was heavily cracked with tree-root heave under the old concrete, and the original steel balustrade was structurally compromised by corrosion. A full structural survey by our pool engineering partner assessed the shell: ground-penetrating radar scans revealed the reinforced concrete was sound but the internal render coating (the waterproof layer) had failed along three crack lines. The decision to completely demolish and rebuild was driven by the scale of the infinity edge specification: a true overflow infinity pool requires precise levelling of the overflow blade to ±0.5 mm across its full length — not achievable by repairing an existing structure. The new pool dimensions — 9×4 m, 1.4 m uniform depth — were the maximum achievable within the licensed terrace footprint.

Technical Specifications

Original pool6×3 m 1990s pool — cracked shell, 200 L/day leak, failed internal render — demolished
New pool9×4 m, 1.4 m uniform depth (flat bottom), infinity overflow edge 9 m long on sea-facing side
Overflow blade tolerance±0.5 mm level across full 9 m length — requires purpose-built new shell
02

Material Selection at the Showroom

Ezarri Iris Niagara cobalt blue glass mosaic — wet iridescent detail

The showroom session for the pool and terrace materials was a two-visit process. For the pool mosaic, the client needed to see the tile in water — the colour of glass mosaic changes dramatically between dry and wet. We arranged for four mosaic colour samples (cobalt blue, midnight navy, tropical turquoise, and pearl white) to be installed in a test basin in our showroom, with water, so the client could evaluate the actual wet appearance. The Ezarri Iris Niagara 5×5 cm cobalt blue iridescent glass mosaic was chosen for its vivid aquamarine colour in sunlight and deep cobalt at night. For the terrace, the client chose Porcelanosa Troya Beige 60×120 cm outdoor porcelain — a travertine-effect tile with a natural fossil-stone texture, anti-slip R11 rating, and a warm sandy colour that complements the pool mosaic without competing with it. The frameless glass balustrade was chosen over alternatives (stainless posts with glass infill, stainless wire) because it provides a completely transparent boundary — from the dining table, nothing interrupts the sea horizon.

Technical Specifications

Pool mosaicEzarri Iris Niagara 5×5 cm iridescent cobalt blue glass, mesh-backed, selected wet in showroom test basin
Terrace tilesPorcelanosa Troya Beige 60×120 cm outdoor, travertine-effect, R11 anti-slip, 20 mm thick
BalustradeFrameless 10 mm toughened clear glass, Tfix base-fix stainless steel channel — no top rail, invisible from dining area
Pool copingBrushed Italian limestone Botticino 60×30 cm, honed anti-slip top, polished vertical face, same warm tone as terrace
03

Demolition & Pool Shell Construction

Demolition of the existing pool shell took 4 days using a tracked mini-excavator and hydraulic breaker. The old terrace paving and its concrete sub-base were removed over the same period, exposing the natural soil sub-grade. The new pool excavation was then taken to 1.9 m below finished terrace level to accommodate the shell thickness, the balance tank below the infinity edge, and the structural slab. The new shell is 350 mm reinforced concrete (C30/37) cast in two pours — floor slab first, then walls — with a Penetron crystalline waterproof additive mixed into the concrete at 1 kg per 100 kg cement ratio. This integral waterproofing provides a first layer of protection within the concrete structure itself, before any applied coating. The overflow balance tank (10,000 L, cast in situ below the pool terrace) captures the overflow and recirculates it via twin pumps. The overflow blade — the critical element of the infinity effect — is a 9 m length of 6 mm grade 316 stainless steel levelled to ±0.5 mm using laser levels and adjustable threaded supports before the coping tiles are fixed.

Technical Specifications

Shell concrete350 mm reinforced C30/37 concrete, Penetron crystalline additive at 1 kg/100 kg cement, two-pour construction
Balance tank10,000 L cast in situ below terrace, twin pump recirculation, automatic level valve
Overflow blade9 m × 6 mm grade 316 stainless steel, laser-levelled to ±0.5 mm on threaded adjustable supports
Pool volume9 × 4 × 1.4 m = 50,400 L (50.4 m³)
04

Pool Mosaic, Coping & Hydraulics

Infinity overflow blade — water sheeting over stainless steel edge

The Ezarri Iris Niagara glass mosaic was applied to all pool surfaces (walls and floor) in mesh-backed 300×300 mm sheets using Mapei Kerabond T white polymer-modified adhesive — the white adhesive is essential with glass mosaic to ensure the tile colour reads true rather than being darkened by grey adhesive showing through. The mosaic was applied by two specialist tilers over 8 days; the overflow blade area required particular precision as the mosaic must follow the blade exactly and the final top-edge row of mosaic sits level with the water surface. Total pool internal tiled area: 99 m². The coping tiles (Botticino limestone 60×30 cm) were bedded on a sulphate-resistant mortar, with all joint widths matched to the terrace paving at 5 mm. The hydraulic system comprises: 2 × Pentair IntelliFlo3 variable-speed pumps (1.5 kW, 40 m³/h capacity each), Hayward Pro-Series 500 mm sand filter, UV-C disinfection unit (Zodiac 55 W) and saltwater chlorination (Hayward AquaRite 40g/hr). Pool automation is via Fluidra Connect — the client controls pump schedules, water temperature (heat pump), lighting colour scenes and chemical dosing via a single smartphone app.

Technical Specifications

Mosaic applicationMapei Kerabond T white polymer adhesive, 300×300 mm mesh sheets, 8 days application — 99 m² total
Pump system2 × Pentair IntelliFlo3 variable-speed 1.5 kW, 8-hour water turnover capacity, energy class IE5
Filtration & sanitationHayward Pro-Series 500 mm sand filter + Zodiac UV-C 55 W + Hayward AquaRite saltwater chlorinator 40 g/hr
Underwater lighting8 × Astralpool LumiPlus Flexi RGB LED, 252 LEDs each, 22 W, app-controlled colour scenes via Fluidra Connect
Pool automationFluidra Connect — pump schedules, heat pump temperature, lighting scenes, chemical dosing — single smartphone app
05

Terrace, Balustrade & Landscaping

Frameless glass balustrade — uninterrupted Mediterranean sea horizon
Pool at night — Astralpool RGB LED colour scene

The 280 m² terrace was resurfaced with the Porcelanosa Troya Beige 60×120 cm outdoor porcelain laid on a screed over the existing substrate (repaired and reinforced where tree-root damage was found). All tiles were laid with a 3 mm open joint filled with flexible polyurethane sealant — this allows the terrace to move seasonally without cracking — and the large-format runs were interrupted with expansion joints every 6 m. The frameless glass balustrade was installed on the terrace perimeter: Tfix base-fix channels set into the concrete edge, receiving the 10 mm fully toughened safety glass panels (1.1 m high) without any visible post or top rail. Recessed LED step lights (IP68, warm white 3000 K, Bezel in marine grade stainless steel) were embedded into the risers of all terrace access steps — 16 lights in total. The terrace landscaping used drought-resistant Mediterranean planting: lavender, rosemary, agave and dwarf olive trees in Portuguese limestone planters, requiring no irrigation beyond the first establishment season.

Technical Specifications

Terrace tilePorcelanosa Troya Beige 60×120 cm, 20 mm thick outdoor, R11 anti-slip, 3 mm open joints with flexible PU sealant
Balustrade10 mm fully toughened clear glass, Tfix base-fix system, 1.1 m height — no top rail, completely transparent
Step lighting16 × recessed IP68 LED step lights, 3000 K warm, marine grade stainless steel bezel, 3 W each
LandscapingDrought-resistant Mediterranean species: lavender, rosemary, agave, dwarf olive — Portuguese limestone planters, no ongoing irrigation
06

How We Work With You

Every Magnum Reformas project begins with a free site visit from a dedicated project manager — no obligation, within 48 hours of enquiry. We provide a fully itemised fixed-price quote: every line of work is listed, nothing is hidden. Once approved, our team manages every trade on site so you never coordinate subcontractors yourself. A dedicated WhatsApp group keeps you updated with photos and videos throughout. At handover, we walk you through every installation and leave you a full documentation pack.

Technical Specifications

Site VisitFree, no obligation, within 48 hours of enquiry
Fixed QuoteFully itemised, fixed price — no hidden extras
Material SelectionEvery finish chosen by you at our Marbella showroom
Weekly ReportingPhoto & video updates via WhatsApp or email throughout the build

Photo Gallery

Infinity pool at sunset — cobalt mosaic and sea panorama
Ezarri cobalt blue glass mosaic — wet iridescent macro
Infinity overflow blade — water film over stainless edge
Frameless glass balustrade — sea horizon
Pool at night — RGB LED colour scene

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