Commercial · Case Study

Meridian Corporate Tower — Grade A Office Development

Meridian is a 22-storey Grade A commercial tower developed to institutional-investor standards. Crestmark delivered the structural superstructure, façade coordination, and full MEP fit-out, including a Class-1 fire-protection network and centralised chilled-water plant.

Location
Victoria Island, Lagos
Client
Confidential Institutional Developer
Completion
Q2 2024
Value
₦18.4B
Objectives

What the project set out to do

  • Deliver 34,500 m² of Grade A office space on a 24-month baseline programme
  • Achieve LEED-aligned energy performance
  • Integrate life-safety systems to NFPA 13/72
  • Handover snag-free floor plates ready for tenant fit-out
Challenges

What we were up against

Constrained CBD site

Zero-boundary site in an operational commercial district required a just-in-time logistics plan, off-site pipe prefabrication, and a tower-crane strategy coordinated with adjacent developments.

Grade A programme certainty

Rent commencement dates gave a hard 24-month window with liquidated damages, requiring parallelised structure/façade/MEP sequencing.

Approach

How we delivered

Jump-form core

A hydraulic jump-form core enabled a 4-day floor cycle, protecting the critical-path programme through the superstructure phase.

Prefabricated MEP

Pre-assembled MEP racks in the plant rooms and risers reduced on-site connection time by 38%.

BIM-led clash resolution

LOD 400 federated model with weekly clash reviews eliminated field rework across MEP interfaces.

Engineering

The superstructure is a reinforced-concrete flat-slab system with a central shear-wall core. Post-tensioned transfer beams at level 3 open the podium retail floor plates. The MEP scheme is built around a 2,400-TR chilled-water plant with primary/secondary pumping and a variable-speed water-cooled chiller train, feeding fan-coil terminals on every floor.

Execution

Crestmark led the works package from substructure through fit-out interface. The programme was managed on Primavera P6 with weekly earned-value reporting to the client's project monitoring board. HSE was governed under ISO 45001 principles with a full-time HSE manager on site.

Quality

All concrete met C40/50 characteristic strength with 100% cube testing witnessed by a third-party laboratory. Every welded pipe joint on the fire-protection network was pressure-tested and independently witnessed. The completed building received PC certification with zero Category A snags outstanding.

Outcome

Delivered inside baseline programme with tenant-ready floor plates and full authority approvals. The building achieved 92% pre-let within six months of PC.

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