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PLAN ID: EKC-STR-002Duplex & Villa Structures • Residential RC FrameBS 8110-1:1997 & Eurocode 2

The Aurelia 5-Bedroom Contemporary Cantilevered Duplex Plan

Detached Duplex Structure (G + 1 Floor) • Fits 500–650 sqm Plots (Standard Full Plot)

Standard Turnkey Build~₦302K/m²
NGN 145,000,000
NGN₦145.0M
USD$93K
GBP£73K
EUR€86K
The Aurelia 5-Bedroom Contemporary Cantilevered Duplex Plan
C30/37 Structural Concrete (1:1.5:3 Nominal / Ready-Mix) across Footings, Columns, Beams & Deck
Visual 1 of 3
GROSS FLOOR / PLOT AREA480 sqm / 500 sqm
STRUCTURAL LEVELS2 Levels (Ground + First Floor + Hidden Parapet Roof)
REBAR & CONCRETE BOQ29.8T • 245m³
EST. BUILD DURATION28 – 36 Weeks (7–9 Months)
COREN Structural Engineering Schedule • EKC-STR-002

Complete 12-Point Structural & Civil Specifications

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.

01. Structural Frame System

Reinforced Concrete Column-Beam Frame with Monolithic Staircase & Cantilever Balcony

02. Governing Design Codes

BS 8110-1:1997 & Eurocode 2 | Nigerian National Building Code Compliant

03. Substructure & Foundation System

Reinforced Concrete Pad & Strip Footings (1.5m–1.8m Depth) or 600mm Raft for Waterlogged Plots

04. Concrete Strength Grade

C30/37 Structural Concrete (1:1.5:3 Nominal / Ready-Mix) across Footings, Columns, Beams & Deck

05. Reinforcement Steel Specification

High-Yield TMT Deformed Steel Bars fy = 460–500 N/mm² (Y12 Slab Mesh, Y16/Y20 Columns & Beams)

06. Suspended Floor Slab System

175mm Solid Two-Way Reinforced Concrete Suspended First Floor Slab

07. Column Grid & Section Sizes

5.4m × 6.0m Structural Grid | 230×230mm & 230×450mm Flushed RC Columns

08. Primary & Cantilever Beam Specs

230×450mm Main Floor Beams | 230×600mm Front Cantilever Beam (2.4m Projection)

09. Blockwork & Shear-Wall System

225mm (9-Inch) Hollow Sandcrete Blockwork Externally & Internally (Load-Relieved Partitioning)

10. Roof Trusses & Parapet Drainage

Cast-in-Situ RC Parapet & Rainwater Gutter + Treated Timber or Steel King-Post Trusses (0.55mm Aluminum)

11. Required Soil Bearing Capacity

Minimum 130 kN/m² for Pad & Strip | Raft Option Included for 75–120 kN/m²

12. Wind Load & Factor of Safety

Wind Load 38 m/s | Deflection Span/Effective Depth Ratio Checked to BS 8110

Lead Structural Engineer

Engr. Chibuike Ekeson, FNSE, COREN

Principal Civil & Structural Engineer

EST. BUILD PRICE:NGN 145,000,000
Direct WhatsApp Engineering Quote Preview

“Hello Engr. Ekeson & Ekesonconstruct Civil Engineering Desk, I inspected the full structural details for "The Aurelia 5-Bedroom Contemporary Cantilevered Duplex Plan" [Plan ID: EKC-STR-002]. Selected Scope: Standard Turnkey Build | Soil Profile: Firm Laterite Soil (Pad/Strip Baseline) | Website Estimated Build Cost: NGN 145,000,000. Please share the itemized BOQ and mobilization schedule for my land.”

Ask Exact Price to Build on WhatsAppCall Lead Engineer: +234 800 353 7662
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