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Duplex vs Single Floor: Which Is Right for You?

Compare costs, space efficiency, and lifestyle factors for G vs G+1 construction.

6 min read · May 12, 2026

Single-floor homes cost 15-20% less per sqft due to simpler foundation and no staircase/lift requirements.

Duplex designs maximise plot coverage — a G+1 on 30×40 yields nearly double the living space within the same footprint.

Staircases consume 40-60 sqft. Factor this into your carpet area calculations when comparing single vs multi-floor plans.

Single-floor homes are better for elderly residents and reduce maintenance. Duplex offers privacy separation between floors.

For plots under 1,500 sqft, single floor often makes more sense. Above 2,000 sqft, G+1 typically offers better value.

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