About OKELIS

# A sustainability practice
built on Estidama
delivery.

02

OKELIS is a sustainability and building-performance consultancy working across the built environment in Abu Dhabi and the wider GCC.

Our team holds Pearl Qualified Professional and Independent Commissioning Agent appointments and has delivered 25 projects under the Abu Dhabi Estidama Pearl Rating System, across schools, mosques, hospitals, villas, commercial towers, residential buildings and a hyperscale data centre.

Alongside certification we run the technical analysis that supports it: whole-building energy modelling to ASHRAE 90.1 Appendix G, daylight simulation, life cycle assessment to EN 15978, life cycle costing to ISO 15686-5, construction waste management and greenhouse gas accounting to the GHG Protocol.

Every recommendation is quantified. Where a target is set we model it, measure it and report against it, using recognised standards and established simulation tools, and we document the assumptions so the result can be checked by a third party.

Fig. 02.1 · Indicative imagery. To be replaced with OKELIS project photography
OKELIS integrates sustainability certification, ESG, carbon accounting and advanced building-performance analysis to help organizations and project teams make better decisions, reduce environmental impact and deliver high-performing, resilient buildings.
25
Projects delivered under Estidama
PQP
Pearl Qualified Professional
ICA
Independent Commissioning Agent
2 Pearl
Highest Estidama rating delivered
OKELIS Corporate Portfolio 02