The Brief
ArchiShelter was commissioned to replace an aging, dilapidated bungalow with a modern, structurally sound, two-storey residential duplex. The project required careful demolition of the existing structure, site clearing, and a full ground-up build within a tight residential footprint in Lagos.
This case study documents the complete lifecycle of the build — demonstrating our adherence to structural engineering standards, sequential project management, and high-quality finishing. Every stage was executed by our in-house team, ensuring the client had a single point of accountability from the first swing of the sledgehammer to the final coat of paint.
Project Lifecycle
Step-by-step documentation of the construction process.
The site originally housed an old, structurally compromised bungalow. Before any work began, our engineers assessed the site conditions and planned the demolition sequence to ensure safety and minimal disruption to neighbours.
The old structure was carefully demolished. Debris was evacuated, and the site was graded and prepared for the new foundation layout.
Translating the architectural drawings to the physical site. Precise setting out is critical to ensure the building sits exactly within the approved setbacks and boundary lines.
Timber formwork erected and steel reinforcements tied. Our structural engineers inspected the rebar spacing and concrete cover before authorising the cast.
The oversite concrete (DPC slab) cast and properly cured. This forms the solid, moisture-resistant base for the entire structure.
Raising the walls for the ground floor using high-quality load-bearing sandcrete blocks, properly bonded and aligned.
Preparing for the first-floor concrete slab (decken). This involves extensive bamboo propping, timber decking, and precise iron bending (rebar placement) before concrete casting.
Active concrete casting of the suspended slab. A critical phase requiring continuous pouring and vibration to prevent honeycombing and ensure structural integrity.
Following the curing of the first-floor slab, the upper floor blockwork is raised to the roof lintel level.
Installation of treated hardwood timber trusses to form the skeletal structure of the roof.
The roof structure is completed and covered with high-grade roofing sheets, sealing the building envelope from the elements.
The exterior is plastered and primed. Windows are installed, and the property begins to show its final architectural character. Mechanical, electrical, and interior finishing works are in the final stages.
Speak to our engineers and architects about your plot and requirements.