6-Storey Commercial Office Building (Column-Free Floor Plates) • CBD / Commercial Plots (1,200–2,000 sqm)
A state-of-the-art 6-storey commercial office structure engineered with 9.0m × 9.0m wide-span ribbed waffle slabs to deliver open, column-free corporate floor plates, structural curtain-wall glazing anchors, twin elevator shafts, and basement/ground parking.
Dual Structural System: Moment-Resisting RC Perimeter Frame + Central Reinforced Concrete Core Wall
Eurocode 2 (EN 1992-1-1) & BS 8110 | Imposed Office Live Load: 4.0 kN/m² + 1.0 kN/m² Partitions
Deep Bored Concrete Piles (600mm Ø to 26m Depth) + 1,500mm Thick Pile Caps & Tie Beams
C40/50 High-Strength Concrete (Columns, Core Walls & Pile Caps) | C35/45 (Waffle Slabs)
High-Yield TMT Bars fy = 500 N/mm² (Y16, Y20, Y25, Y32) + BRC A393 Top Topping Mesh
325mm Deep Two-Way Ribbed Waffle Slab (75mm Solid Topping + 250mm Ribs at 900mm Centers)
9.0m × 9.0m Long-Span Commercial Grid | 450×600mm & 500×500mm High-Strength RC Columns
400×750mm Wide-Band Primary Beams | Perimeter Curtain-Wall Edge Beams
250mm Reinforced Concrete Core Walls (Twin Lift Shafts & Pressurized Fire Stairs) + Double-Glazed Aluminium Curtain Wall
200mm Waterproofed Flat RC Service Roof Slab (Engineered for HVAC Chillers & Solar Array Loads)
Piled Foundation Engineered for 650 kN Working Load per Pile (Dynamic Load Tested)
Wind Tunnel & Lateral Drift < H/500 | 2-Hour Fire Rating (REI 120)
Principal Civil & Structural Engineer
“Hello Engr. Ekeson & Ekesonconstruct Civil Engineering Desk, I inspected the full structural details for "Emerald Atrium 6-Storey Grade-A Commercial Office Structure" [Plan ID: EKC-STR-004]. Selected Scope: Standard Turnkey Build | Soil Profile: Firm Laterite Soil (Pad/Strip Baseline) | Website Estimated Build Cost: NGN 780,000,000. Please share the itemized BOQ and mobilization schedule for my land.”
Full Move-In Cost (Painted & Tiled)
NGN 520,000,000
Purpose-engineered 3-storey medical and diagnostic complex featuring high-density concrete radiation shielding for CT/X-Ray rooms, vibration-isolated surgical theatre slabs, wide hospital stretcher elevator core, and structural emergency ramp.
Full Move-In Cost (Painted & Tiled)
NGN 285,000,000
A state-of-the-art 3-storey reinforced concrete residential structure engineered with a 3.8m dramatic front cantilever, double-height void over the main ante-room, reinforced concrete lift shaft for a residential glass elevator, infinity pool structural shell, and 3-room detached BQ.
Full Move-In Cost (Painted & Tiled)
NGN 145,000,000
Our most popular 5-bedroom detached duplex structure designed to fit a standard 500–600 sqm plot with ample parking for 5 cars, a 2-room attached BQ, floating reinforced concrete staircase, floor-to-ceiling thermal glass panels, and hidden RC roof gutter slab.