Corporate portfolio Internal review
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OKELISCorporate portfolio
Internal review / 2026
Engineering a better built environment

Sustainability.
Innovation. Intelligence.

Certification, building performance
and whole-life thinking.

Abu Dhabi, UAE
UAE & GCC
01 / About OKELIS

Better decisions.
Better buildings.

Sustainability and building-performance consultancy for the UAE and wider GCC.

Bright open-plan office interior; reference imagery, not an OKELIS projectReference imagery
EightIntegrated service lines, delivered by one team
OneModel behind certification, carbon, cost and comfort
UAE / GCCAbu Dhabi based, regional delivery

OKELIS connects certification with energy, daylight, carbon and whole-life analysis. The practice helps project teams define the target, test design options and carry the evidence through delivery.

Certify → Measure → Optimize → Decarbonize
OKELIS / About OKELIS02
OKELIS
Purpose · Vision · Mission

Our purpose.
Our direction.

03
01 Purpose
Better decisions,
earlier

Put reliable evidence in front of design decisions while they can still change.

02 Vision
Performance as
the standard

Make sustainability targets traceable, measurable and open to independent review.

03 Mission
Integrate,
quantify, deliver

Connect certification, carbon and building analysis in one coherent service.

We are accountable for numbers, not intentions.

Track energy, carbon, daylight, cost and rating credits against clear baselines. State the assumptions behind every result.

Our values
Technical rigour

Modelled, referenced and auditable. No unsupported claims.

Independence

Advice driven by the analysis, not by a product or supplier.

Clarity

Complex analysis communicated so decision-makers can act on it.

Accountability

We stay on the project through to certification and operation.

Vision & Mission 03
Why OKELIS

One team.
Connected expertise.

04
01
Integrated by default

One team connects energy, daylight, carbon, cost and certification.

02
Evidence, not assertion

Support each target with traceable modelling or measured evidence.

03
Parametric option testing

Compare design options using simulation and documented assumptions.

04
Estidama specialists

UAE experience across the 25 entries in the supplied project register.

05
Whole-life view

Assess environmental impact and cost across the asset’s life.

06
Through to handover

Track decisions through construction, evidence gathering and review.

Client value
De-risked approvals, lower operating cost, and a defensible sustainability position with regulators, investors and occupiers.
Design
Options tested before they are costed
Approval
Submissions built to reviewer expectations
Operation
Performance tracked against the model
Why OKELIS 04
The OKELIS Sustainability Ecosystem

One connected
sustainability system.

05

One design change affects energy, carbon, cost and certification. We assess those connections together.

Certify

LEED · BREEAM · Estidama · WELL · Mostadam · Barjeel · Al Sa'fat

Measure

Energy · Daylight · GHG inventories · ESG data · Baselines

Optimize

Simulation · ECM evaluation · LCA · LCC · Scenario testing

Decarbonize

Reduction strategy · Net-zero pathway · ESG strategy · Reporting

Sustainability Ecosystem 05
OKELIS / Services

Green building certification

Define the target. Coordinate the proof.

Detailed isometric line illustration of green building certification
Conceptual service illustration · no project outcome implied
OKELIS / Green building certification06
Illustrative green building certification imagery
Services / Green building certification

From concept
to certification.

Manage the rating strategy, coordinate the evidence and guide the submission through review.

Define the target

Select a suitable scheme, test credit feasibility and agree the intended rating.

Coordinate delivery

Connect design reviews, simulation evidence and construction records.

Close the evidence

Prepare submissions and respond to reviewer comments.

How it works
From inputs to a decision
Four-stage green building certification process
What you receive

A coordinated credit tracker, evidence register and certification submission.

Explore the technical scope ↗
OKELIS / Green building certification07
Green building certification · continued

How we protect
the rating.

A rating is won in the evidence, not the intent. These are the four places certifications are usually lost.

cert process flow
Return loop / Reviewer comments returned to design evidence.

Feasibility before commitment

Test the rating against brief, budget and site before it is written into the contract, so the project neither commits to a level it cannot reach nor settles for one it could have exceeded.

Credit feasibility & gap report

A live credit register

Every credit carries an owner, an evidence requirement and a status. The register is reviewed at each design stage, so nothing is discovered missing at submission.

Credit responsibility matrix

Simulation as evidence

Energy, daylight and water credits are supported by our own models, produced in-house and consistent with the analysis used elsewhere on the project.

Design-stage compliance reports

Construction-stage discipline

Material submittals, procurement records and site practices are reviewed against credit requirements while they can still be corrected.

Construction-stage audit reports
OKELIS / Green building certification08
OKELIS / Services

ESG reporting & advisory

Make the dataset traceable, then tell the story.

Detailed isometric line illustration of esg reporting & advisory
Conceptual service illustration · no project outcome implied
OKELIS / ESG reporting & advisory09
Illustrative esg reporting & advisory imagery
Services / ESG reporting & advisory

Clear reporting.
Accountable performance.

Organise sustainability data around material topics, practical controls and a reporting boundary.

Advisory offering · completed-project evidence to be confirmed

Set priorities

Select the scheme and agree a feasible rating.

Build the dataset

Connect design evidence and construction records.

Report with context

Prepare the submission and resolve comments.

How it works
From inputs to a decision
Four-stage esg reporting & advisory process
What you receive

A reporting framework, KPI register and evidence-led sustainability narrative.

Explore the technical scope ↗
OKELIS / ESG reporting & advisory10
ESG reporting & advisory · continued

From disclosure
to management.

Most ESG reports cannot be reproduced twelve months later. We build the data architecture first, so the report is an output of the system.

esg process flow
Return loop / Gaps found in review reopen data collection.

Materiality that survives challenge

Stakeholder engagement and impact assessment determine what genuinely matters, rather than reporting whatever happens to be measurable.

Materiality assessment report

One dataset, many frameworks

GRI, TCFD, CDP, EcoVadis and the UN SDGs draw on a single governed dataset, so figures agree across every disclosure.

KPI framework & baseline register

Assurance-ready evidence

Source mapping, collection protocol, quality control and an internal assurance trail, so an external assuror can follow every number to its origin.

ESG data management protocol

From report to action

Framework-aligned disclosure, assurance readiness and stakeholder communication, connected to a decarbonization strategy rather than published in isolation.

Annual sustainability report
OKELIS / ESG reporting & advisory11
OKELIS / Services

GHG accounting

A credible boundary for every emission source.

Detailed isometric line illustration of ghg accounting
Conceptual service illustration · no project outcome implied
OKELIS / GHG accounting12
Illustrative ghg accounting imagery
Services / GHG accounting

Measure the footprint.
Plan the reduction.

Create a traceable inventory before evaluating where emissions can be reduced.

Advisory offering · completed-project evidence to be confirmed

Define the boundary

Map material topics and disclosure gaps.

Quantify emissions

Set data owners, KPIs and quality checks.

Plan reductions

Connect performance, policy and action.

How it works
From inputs to a decision
Four-stage ghg accounting process
What you receive

An emissions inventory, assumptions register and reduction opportunities.

Explore the technical scope ↗
OKELIS / GHG accounting13
GHG accounting · continued

Three scopes,
one inventory.

A footprint is only useful if the boundary holds. We set it once, document it, and hold the recalculation policy for when the organization changes shape.

carbon process flow
Return loop / Recalculation policy triggers a baseline restatement.

Scope 1 · Direct emissions

Fuel use, company vehicles and refrigerant losses. Typically the smallest share of a property portfolio, but the most directly controllable.

Direct emissions inventory

Scope 2 · Purchased energy

Purchased electricity, cooling, steam and heat, with the relevant reporting method applied. The primary lever for most buildings.

Location and market-based totals

Scope 3 · Value chain

Value-chain emissions across the relevant categories, from materials to end-of-life. Usually the largest and least understood share, commonly 70–90% of a real estate organization's footprint.

Scope 3 screening & materiality

The reduction hierarchy

Avoid, reduce, substitute, then offset. High-integrity removal is for residual emissions only, never a substitute for the first three.

Marginal abatement cost review
OKELIS / GHG accounting14
OKELIS / Services

Life cycle assessment

See the impacts behind each design choice.

Detailed isometric line illustration of life cycle assessment
Conceptual service illustration · no project outcome implied
OKELIS / Life cycle assessment15
Illustrative life cycle assessment imagery
Services / Life cycle assessment

Understand the
whole-life impact.

Compare environmental impacts across the building life cycle to inform material and design decisions.

Map the building

Agree boundaries and relevant emission sources.

Compare options

Calculate emissions from traceable activity data.

Guide design

Compare measures and prioritise reductions.

How it works
From inputs to a decision
Four-stage life cycle assessment process
What you receive

A whole-building life cycle assessment with scenarios and documented assumptions.

Explore the technical scope ↗
OKELIS / Life cycle assessment16
Life cycle assessment · continued

Embodied carbon,
module by module.

An assessment is only useful if it changes a decision. We run it while the structural system and the primary materials are still open.

lca process flow
Return loop / Substitution changes the bill of materials.

A1–A5 · Product and construction

Raw material supply, transport, manufacturing and the construction process. Where most embodied carbon is fixed, and where substitution has the most effect.

Bill of materials by element

B1–B7 · Use stage

Maintenance, repair, replacement and refurbishment across the service life, plus operational energy and water where the study includes them.

Replacement cycle assumptions

C1–C4 · End of life

Demolition, transport, waste processing and disposal, with the reuse and recovery potential recorded separately as module D.

End-of-life scenario

Where the decisions are made

Concept sets structural system, grid and massing. Scheme sets façade build-up and glazing ratio. Detail sets concrete mix and finishes. Procurement sets supplier EPDs and transport distance.

Hotspot analysis & options
OKELIS / Life cycle assessment17
OKELIS / Services

Life cycle costing

Understand the cost across the asset life.

Detailed isometric line illustration of life cycle costing
Conceptual service illustration · no project outcome implied
OKELIS / Life cycle costing18
Illustrative life cycle costing imagery
Services / Life cycle costing

Look beyond
the initial price.

Make cost decisions with maintenance, replacement and operating performance in view.

Set the basis

Check quantities, materials and study limits.

Model ownership

Assess product data and replacement cycles.

Test the decision

Compare lower-impact design alternatives.

How it works
From inputs to a decision
Four-stage life cycle costing process
What you receive

A whole-life cost comparison, sensitivity analysis and decision summary.

Explore the technical scope ↗
OKELIS / Life cycle costing19
Life cycle costing · continued

The lowest capital cost
is rarely the lowest whole-life cost.

The analysis exists to show what a proposed capital saving actually costs across the life of the asset.

lcc process flow
Return loop / A result that flips under sensitivity is re-modelled.

Define the study period

Set against the client's holding period or the asset's design life, not a default. The period chosen determines which option wins.

Agreed study basis

Model the cash flows

Capital, energy, water, maintenance, periodic replacement and disposal, with energy demand taken from the building energy model rather than assumed.

Life cycle cost model

Discount to present value

Apply the client's discount rate and escalation assumptions, and state them explicitly. The result is only meaningful alongside them.

Discounted cash flow & NPV

Test the sensitivity

Vary energy tariff, discount rate and component life. An option that only wins under one set of assumptions is not a recommendation.

Sensitivity & scenario report
OKELIS / Life cycle costing20
OKELIS / Services

Energy modelling

Test performance before choices are fixed.

Detailed isometric line illustration of energy modelling
Conceptual service illustration · no project outcome implied
OKELIS / Energy modelling21
Illustrative energy modelling imagery
Services / Energy modelling

Test the design.
Improve performance.

Use whole-building simulation to compare options and support the project’s energy objectives.

Build the baseline

Agree the study period and cost assumptions.

Test measures

Combine capital, operating and replacement costs.

Explain the result

Test alternatives and key cost sensitivities.

How it works
From inputs to a decision
Four-stage energy modelling process
What you receive

An energy model, design-option comparison and performance report.

Explore the technical scope ↗
OKELIS / Energy modelling22
Energy modelling · continued

Optimizing
building performance.

Four systems decide the outcome. We test them against one another rather than one at a time, because the trade-offs run in both directions.

energy process flow
Return loop / Measures that fail the target return to testing.

Envelope

Insulation levels, thermal bridging, air-tightness, glazing specification, window-to-wall ratio, external shading and orientation response.

Envelope option comparison

HVAC

System selection, plant efficiency, part-load behaviour, heat recovery, demand-controlled ventilation, chilled water and district cooling interface.

Plant sizing & efficiency case

Lighting and controls

Installed power density, daylight-linked dimming, occupancy control, setpoints, schedules, optimum start and night purge.

Controls strategy

Renewables

Photovoltaic array sizing, self-consumption, solar thermal and on-site generation scenarios, judged on whole-life cost rather than capacity.

Generation scenario model
OKELIS / Energy modelling23
OKELIS / Services

Daylight & comfort

Shape the light. Understand the trade-offs.

Detailed isometric line illustration of daylight & comfort
Conceptual service illustration · no project outcome implied
OKELIS / Daylight & comfort24
Illustrative daylight & comfort imagery
Services / Daylight & comfort

Better daylight.
Better spaces.

Balance daylight availability, solar exposure and visual comfort before the design is fixed.

Understand the space

Set geometry, weather and reference inputs.

Simulate conditions

Compare envelope, lighting and HVAC measures.

Refine the design

Report savings, assumptions and evidence.

How it works
From inputs to a decision
Four-stage daylight & comfort process
What you receive

Daylight maps, performance indicators and practical design recommendations.

Explore the technical scope ↗
OKELIS / Daylight & comfort25
Daylight & comfort · continued

Optimizing
the façade.

In this climate the daylight strategy and the cooling load are the same decision. Four variables carry it.

daylight process flow
Return loop / Revised shading is re-run against the space model.

Glazing ratio

More glass admits more daylight and more heat. The useful range is narrower than most schemes assume, and it is orientation-dependent.

Window-to-wall study

Glass specification

Visible light transmittance against solar heat gain coefficient. A high-performance coating can hold daylight while cutting gain.

Glazing specification

External shading

Geometry tuned to orientation and sun path: horizontal on south, vertical on east and west. The most effective single measure in this climate.

Shading & façade recommendations

Interior control

Blinds, light shelves and daylight-linked dimming. Necessary, but no substitute for getting the façade right.

Floor-plate daylight heat maps
OKELIS / Daylight & comfort26
OKELIS / Services

Retail sustainability & impact storytelling

Real actions. Verified impact. Credible stories.

Detailed isometric line illustration of retail sustainability & impact storytelling
Conceptual service illustration · no project outcome implied
OKELIS / Retail sustainability & impact storytelling27
Retail sustainability

From product to packaging.
From store to story.

Retail sustainability & impact storytelling

Isometric concept illustration of a retail store, packaging, water, reuse and evidence review
Concept illustration · no client project implied
Sustainable stories. Real evidence.

We identify, measure and communicate sustainability practices that customers can understand and trust.

No greenwashing.
OKELIS / Retail sustainability28
Retail sustainability · continued

Make the work visible.
Keep the proof close.

From products and packaging to store operations, each story starts with documented action and a clear boundary.

01

Products & sourcing

Materials, certifications, local sourcing and durability.

02

Packaging

Reduction, reuse, recycled content and circular options.

03

Water

Fixtures, monitoring, leaks, cleaning and reuse opportunities.

04

Waste & circularity

Prevention, segregation, food waste and take-back.

05

Store operations

Energy, water, materials and day-to-day practices.

06

Impact measurement

Carbon, energy, water, waste and packaging indicators.

07

Claims review

Check the evidence before a claim reaches customers.

08

Story development

Turn verified action into clear stakeholder narratives.

Every claim needs a basis.

We review supporting information, state what was measured and disclose relevant limits before publication.

  1. 01Discover
  2. 02Verify
  3. 03Measure
  4. 04Improve
  5. 05Communicate

Typical outputs · Opportunity map, indicator register, claim review and customer-facing story concepts.

OKELIS / Retail sustainability / Scope29
Integrated Sustainability Approach

Eight services.
One team.

30

Energy informs carbon and cost. Daylight informs the façade. Certification draws on the same evidence.

Service Concept Design Procurement Construction Operation
Green Building Certification
Building Energy Modelling
Daylighting Assessment
Life Cycle Assessment
Life Cycle Costing
GHG & Carbon Accounting
ESG Reporting & Advisory
Retail Sustainability & Impact Storytelling
Highest influence
Active
As required
Where the services meet
Daylight → Energy → Cost

The shading study changes the cooling load in the energy model, which changes the operating cost in the LCC and the plant size in the capital cost.

LCA → LCC → Specification

The material comparison is run for carbon and for whole-life cost together, so the substitution is judged on both before it reaches procurement.

Energy → Carbon → ESG

The modelled and metered energy demand becomes the Scope 2 inventory, which becomes the disclosed emissions intensity in the ESG report.

Integrated Approach 30
Project Lifecycle

The right scope.
At the right stage.

31

Early design decisions offer the greatest influence. Later changes usually cost more.

Five stages from concept to operation
ABILITY TO INFLUENCE PERFORMANCE COST OF MAKING A CHANGE CONCEPT OPERATION
Fig. 21.1 · The case for early engagement
Our position

Late appointments limit the work to checking decisions already made.

Early engagement allows orientation, structure and systems to be tested before they are fixed.

Project Lifecycle 31
Sectors We Serve

Different sectors.
Specific solutions.

32

Occupancy, operating hours and building systems differ by sector. The analysis should reflect them.

Residential
Envelope and thermal comfort, domestic hot water, ventilation, Estidama and Al Sa'fat compliance.
Commercial
Daylight and glare, HVAC efficiency, tenant fit-out control, LEED and investor-grade disclosure.
Hospitality
Continuous operation, high domestic hot water and laundry loads, guest comfort, water strategy.
Education
Daylight quality, ventilation and indoor air quality, intermittent occupancy, acoustic interface.
Healthcare
High ventilation duty, resilience and redundancy, stringent air quality, 24-hour energy demand.
Retail
Lighting energy, high internal gains, footfall-driven ventilation, fit-out sustainability guidelines.
Mixed-Use
Diverse load profiles, shared plant and metering strategy, multiple certification boundaries.
Infrastructure
Embodied carbon dominance, materials and earthworks, long asset life, whole-life cost focus.
Industrial
Process energy, Scope 1 combustion, heat recovery opportunity, corporate GHG inventory.
Government
Mandatory rating compliance, public reporting duty, exemplar performance requirements.
Corporate & portfolio clients

Extend the approach across a portfolio with carbon inventories, ESG reporting and performance comparisons.

Sectors We Serve 32
Standards & Frameworks

Standards that
guide the work.

33

Use recognised standards to make results comparable and reviewable.

Green building rating systems
OKELIS
LEED
Global green building design, construction and operations
OKELIS
Estidama
Pearl Rating System · Abu Dhabi, UAE
OKELIS
EDGE
Energy, water and embodied-energy resource efficiency
OKELIS
Al Sa'fat
Dubai green building evaluation system
OKELIS
LBC
Living Building Challenge · Regenerative performance
WELL official mark
WELL
Occupant health, comfort and wellbeing
OKELIS
Fitwel
Health and occupant-experience certification
OKELIS
BREEAM
Whole-life environmental assessment method
TRUE
Zero Waste certification for resource recovery
Zero Carbon
Operational and embodied carbon certification
Tourism, hospitality & organisational Scope to confirm
EarthCheck
Scientific benchmarking and certification for travel and tourism. Ras Al Khaimah holds EarthCheck Silver at destination level
Green Key
Eco-label for tourism establishments, run by the Foundation for Environmental Education
OKELIS
EcoVadis
Business sustainability rating covering environment, labour, ethics and procurement
OKELIS
Responsible RAK
RAKTDA sustainable tourism certification for hotels, attractions and operators in Ras Al Khaimah
Technical standards applied
GHG Protocol
Corporate Scope 1, 2 and 3 accounting
ISO 14064
GHG quantification and verification
ISO 14040 / 14044
Life cycle assessment framework
EN 15978
Whole-building environmental performance
ISO 15686-5
Whole-life costing of built assets
GRI
Sustainability reporting standards
ASHRAE 90.1
Energy standard, Appendix G method
IES LM-83
Daylight autonomy and sunlight exposure

Official marks: LEED, BREEAM, WELL and EDGE. Other symbols are reference icons. No endorsement is implied.

Standards & Frameworks 33
Project experience

Local knowledge.
Technical depth.

A portfolio of building types and appointments, with the project register as the source of record.

25Project entries
18Completed
7Ongoing
01

Red Crescent Headquarters

2 Pearl PBRS · Completed

PQP, ICA and energy modelling

02

Amazon Data Center

1 Pearl PBRS · Completed

PQP and ICA

03

Al Sader Schools 1, 2 and 3

2 Pearl PBRS target · Ongoing

PQP, ICA, energy modelling and waste

Status and ratings as supplied in the review pack. Ratings shown for ongoing work are targets. Project photography and client approval remain to be confirmed.

View the complete 25-project register ↗
OKELIS / Project experience34
Project Experience

25 projects.
A regional track record.

35

The supplied register records project stages, scopes, target ratings and delivery status.

No. Project Stage OKELIS scope Target rating Status
1Red Crescent HeadquartersConstructionPQP · ICA · Energy modelling2 Pearl PBRSCompleted
2International Community SchoolConstructionPQP · ICA · Energy modelling2 Pearl PBRSCompleted
3Noya 2 Jumaa MosqueDesignPQP · ICA · Energy modelling2 Pearl PBRSCompleted
4Abu Dhabi Equine & Camel HospitalDesignPQP · ICA · Energy modelling1 Pearl PBRSCompleted
5Jamal Al Nuaimi VillaDesignPQP · ICA · Energy modelling1 Pearl PVRSCompleted
6Al Suweidi VillaDesignPQP · ICA · Energy modelling1 Pearl PVRSCompleted
7Avangard Training CenterConstructionEnergy modelling1 Pearl PBRSCompleted
8Eagle Hills Broad ProjectDesignPQP · ICA · Energy modelling1 Pearl PBRSCompleted
9Al Reman Residential Building C48DesignPQP · ICA · Energy modelling1 Pearl PBRSCompleted
10Al Reman Residential Building C73DesignPQP · ICA · Energy modelling1 Pearl PBRSCompleted
11Commercial Building C144DesignPQP · ICA · Energy modelling1 Pearl PBRSCompleted
12Commercial Building C64DesignPQP · ICA · Energy modelling1 Pearl PBRSCompleted
13Commercial Building C61DesignPQP · ICA · Energy modelling1 Pearl PBRSCompleted
14Muna AcademyConstructionDaylighting · LCCNot ratedCompleted
15Amazon Data CenterDesignPQP · ICA1 Pearl PBRSCompleted
16Al Reman Residential Building 868DesignPQP · ICA1 Pearl PBRSCompleted
17Residential Building C25DesignPQP · ICA · Energy modelling1 Pearl PBRSOngoing
18Eagle Hills Broad ProjectConstructionSupervision1 Pearl PBRSOngoing
19Delma Mall HotelConstructionEnergy modelling1 Pearl PBRSOngoing
20Al Sader 1 SchoolDesignPQP · ICA · Energy modelling · Waste2 Pearl PBRSOngoing
21Al Sader 2 SchoolDesignPQP · ICA · Energy modelling · Waste2 Pearl PBRSOngoing
22Al Sader 3 SchoolDesignPQP · ICA · Energy modelling · Waste2 Pearl PBRSOngoing
23Al Shamkha SchoolDesignPQP · ICA · Energy modelling · Waste2 Pearl PBRSOngoing
24Al Riyad School RD79ConstructionLife cycle assessment2 Pearl PBRSCompleted
25Al Riyad School RD106ConstructionLife cycle assessment2 Pearl PBRSCompleted

Energy modelling appears on 19 entries. Client details, floor areas and project photography await confirmation.

Project Experience 35
Project snapshot / From the supplied register

Red Crescent
Headquarters.

Certification and technical support at the construction stage.

Rating listed2 Pearl PBRS
Project stageConstruction
Status listedCompleted

The recorded scope

PQP

Pearl Qualified Professional appointment.

ICA

Independent Commissioning Agent appointment.

Energy modelling

Building-performance analysis listed alongside certification roles.

Evidence behind the story

The register records scope and status. Savings, floor area and an approved client statement were not supplied.

Add confirmed evidence to develop this snapshot into a full case study.

Return to project register ↗
OKELIS / Project snapshot36
How we work / Start to finish

From first brief
to verified performance.

One coordinated path, with a clear output at every stage.

  1. 01

    Understand

    Agree the brief, targets and delivery scope.

    Output / Agreed brief
  2. 02

    Establish

    Check inputs, boundaries and the baseline.

    Output / Baseline register
  3. 03

    Model

    Test energy, daylight, carbon and cost.

    Output / Compared scenarios
  4. 04

    Refine

    Choose options and resolve the trade-offs.

    Output / Recommended design
  5. 05

    Deliver

    Track specifications, site records and evidence.

    Output / Coordinated submission
  6. 06

    Verify

    Review outcomes and operational performance.

    Output / Results and next actions
Does the option meet the target?

If not, refine and model again. Once agreed, carry the decision into delivery.

Start / Project brief→Finish / Verified outcomes
OKELIS / Our approach37
Why Work With OKELIS

One partner.
A joined-up approach.

38
For developers & asset owners
  • A certification outcome managed to award, not handed over at design stage
  • Operating cost and carbon quantified before the specification is fixed
  • A defensible sustainability position for lenders, investors and occupiers
  • One accountable party across certification, carbon, cost and comfort
For design teams & contractors
  • Simulation evidence that arrives in time to influence the design
  • Credit requirements translated into buildable, procurable specifications
  • Construction-stage support where certifications are usually lost
  • Consistent numbers across every report, covering energy, carbon, daylight and cost
One
Model behind every number

Energy, carbon, cost and daylight results all derive from the same geometry and the same assumptions, so they never contradict each other.

Eight
Integrated service lines

Certification, ESG, GHG, LCA, LCC, energy modelling and daylighting, coordinated rather than subcontracted.

25
Estidama projects delivered

Every published figure traces to a model run, a measurement or a documented emission factor, and the assumptions travel with it.

PQP + ICA
Appointments held in-house

Pearl Qualified Professional and Independent Commissioning Agent roles carried on our own projects, not subcontracted.

OKELIS is appointed to produce the analysis, documentation and certification evidence that a sustainability target requires, and to stay on the project until it is awarded.
Why Work With OKELIS 38
Contact
39
OKELIS
Let's discuss the performance
your project has to prove.

For enquiries regarding certification, ESG, carbon accounting, life cycle analysis or building-performance modelling, please contact us.

Office
Office No. 4, M Floor
Argentina Building
Next to Ramada Hotel
Ghafat Al Khadar Street 29
Al Zahiya, Abu Dhabi, UAE

OKELIS Engineering Consultancy L.L.C. S.P.C.

Contact
+971 55 378 3188

ahlan@okelis.com
okelis.com

Certify
Measure
Optimize
Decarbonize