Origin Aqua

Natural Pool Design Checklist for Architects – Materials, Codes, Costs | Origin Aqua

Natural Pool Design Checklist for Architects

Minimalist concrete, Corten steel waterfalls, limestone beaches—chemical-free natural pools open a new design palette, but they also introduce hydraulic and biological constraints. This checklist distils Origin Aqua’s experience on 150+ projects so architectural teams can integrate mineral pools smoothly.

1. Site Analysis & Orientation

FactorBest practice
Solar gainOrient long axis east-west; ≥ 6 h sun improves natural UV.
WindUse shrub or glass screens to cut > 20 km/h coastal gusts.
GroundwaterAvoid zones within 1 m of high water table.

2. Hydraulics & Plant Room Geometry 

  • Turnover rate – 3 times per 24 hours so 8 hour cycle for pool volume
  • Pipe sizing – 63 mm PVC-C lines (mineral-friendly, low head loss).
  • Plant room – Minimum 2 m (L) × 1 m (W) × 1.8 m (H); acoustic lining optional.

Diagram: isometric of skid, pump, UV port (optional), bypass manifold.

3. Structural & Waterproofing Options

Shell typeProsCons
Reinforced concrete + tiledFree-form shapes, infinity edgesHigher CapEx
EPS ICF + membraneFast install, thermal massLinear shapes
One-piece compositeQuickest (5-day)Size limitations
Stainless steelWelded on site, quick, durable, easy to maintain, hygenic, liner freeHigher CapEx

*Structure only, excl. finishes and filtration.

4. Finishes & Aesthetics

4.1 Interior lining 

  • Porcelain slabs 120 × 60 cm with epoxy grout (low porosity).
  • Quartz aggregate plaster for lagoon look.

4.2 Decking & Coping 

  • FSC Cumaru or Kebony; set back 5 mm from tile for drainage.
  • Hidden drainage slot = clean shadow gap.
  • Grass edging since no chlorine damage Natural Pool Design 

4.3 Lighting

  • Nichless RGBW LEDs, DMX-controlled; mineral clarity enhances colour gradients.

5. Mechanical & Electrical Integration 

ElementSpecNotes
PumpVariable-speed, 1.1 kW48 dB at 1 m
Heat pumpCOP ≥ 4, R32 gasPosition downwind
ControlSmart PLCIntegrates cover + lighting

6. Sustainability & Certification

  • LEED v4 – mineral pools score under Water Efficiency (WE c2) & Low-Emitting Materials.
  • BREEAM – gains in HEA 02 (indoor air) due to zero chloramines.
  • Local carbon offsets – pumps powered by 3 kW PV array finish net-zero.

7.  Planning Elements

Line item
Design and Technical Drawing
Excavation & shell
Pipework
Filtration skid & pump room 
Heating & cover
Finishes (premium)
Biome Activation time