IGEP Calculator
Select the 11 project characteristics to calculate the design complexity index. The pre-selected values represent a typical moderately complex social housing building.
Lot Elevation Difference
Height difference between the highest and lowest point of the terrain.
Geotechnical Intervention Level
Complexity level of soil interventions.
Slab Type
Floor plan shape of the typical floor slab.
Floor Plan Type
Spatial configuration of the typical floor plan, from 1 (simple) to 8 (complex).
Cantilevered Slab on Typical Floor
Presence of a cantilever (balcony) on the typical floor slab.
Typical Floor Area
Gross area of the typical floor in m² (0 to 1,900 m²).
Vertical Circulation Location
Position of the staircase/elevator shaft relative to the block.
Facade Type (Front / Rear)
L = Linear · RG1 = Cut G1 · RG2 = Cut G2 · RG3 = Cut G3
Number of Housing Unit Types
Number of distinct unit types on the typical floor.
Number of Staircases
Number and diversity of staircase shafts in the block.
Staircase Type
Classification regarding smoke protection.
IGEP
1,109
Complexity ModerateScale
Formula
IGEP = Π (1 + fᵢ) for all 11 criteria. A neutral project (all factors zero) = 1.000.