High / Luxury — $1,800–2,200+ /m² (luxury from $2,000+)

Structure/Envelope: special solutions (long spans, high-performance façades), engineered timber/aluminum, superior thermal/acoustic performance.
Finishes: natural stone/fine woods, fully custom built-ins, premium hardware, signature lighting design.
MEP: integrated HVAC, efficient DHW, BMS/smart home, backup power/water.
Sustainability: passive + active systems (PV, batteries, rain/greywater; certification-ready options).
Architecture: high formal and detailing complexity; premium specifications.
QA/QC: tight tolerances; full testing and commissioning.
Typical contingency: 15–20%.
Indicative Phase 1 fees: 10%+ (per scope/performance targets).

Important: Ranges vary by location, logistics, and finish selections.