Commercial
Horizon Corporate Tower
Grade-A office · 14 floors

Overview
The brief, held in one place.
Horizon Corporate Tower is a Grade-A office building on a Colombo 02 plot. Greystone held the main contract through structure, curtain wall, HVAC and life-safety systems.
A commercial tower built to LEED-aligned standards with a double-skin facade that cuts cooling load by an estimated 22%.
Scope of work
- General contracting
- Curtain wall
- HVAC
- Fire safety
- Client
- Horizon Properties
- Location
- Colombo 02
- Programme
- 2021 — 2023
- Area
- 310,000 sq. ft.
Challenge
Meeting LEED-aligned performance targets on a speculative commercial brief without pricing the building out of the lease market.
Approach
A double-skin facade with coordinated HVAC zoning, early fire-engineering workshops, and envelope mock-ups signed off before mass fabrication.
Outcome
Estimated 22% reduction in cooling load versus the baseline facade. Practical completion with certificates in hand for the first tenant fit-outs.
Gallery
Site and finish.



Next step
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Tell us about the site, the programme, and what must not slip. We will come back within one working day.