Shell & Core vs Category A vs Category B Fit-Out in Dubai

When leasing an office or commercial space in Dubai, one of the first questions to ask is: what condition will the unit be handed over in?

A property described as shell and core requires a different level of work from one delivered with a basic Category A fit-out. A Category B fit-out takes the space further by adapting it to the business that will occupy it.

These terms affect more than the appearance of a property. They influence the work required before moving in, the division of costs between the landlord and tenant, the project timeline and the approvals that may be needed.

For example, a company leasing a bare office floor may need to plan for flooring, ceilings, lighting, air-conditioning distribution and other essential services before building its workplace. A company taking over a Category A office may already have these elements in place, allowing the project to focus on meeting rooms, workstations, reception, branding and other business-specific requirements.

Understanding the difference between shell and core, Category A and Category B fit-out in Dubai helps businesses define the scope before signing a lease or requesting a contractor quotation.

 

What Is Shell and Core Fit-Out?

Shell and core refers to a building or unit that has reached its basic structural stage but has not been completed as a finished interior space for the tenant.

The building’s main structure and external envelope are generally complete, along with shared areas and primary building services. However, much of the work inside the individual unit remains unfinished.

Depending on the property, the tenant may receive a bare floor slab, exposed ceiling, unfinished internal surfaces and service connections that still need to be distributed throughout the space.

What Does Shell and Core Include?

A shell and core handover typically includes:

• The main building structure and floor slabs.
• External walls, façade and glazing.
• Shared circulation areas, lifts and staircases.
• Main building service infrastructure.
• Primary mechanical, electrical and plumbing (MEP) connections, depending on the building.

The exact handover condition varies. Some services may be available at the unit boundary, while others may require additional work before the space can be used.

What Work Is Still Required?

A business starting with shell and core may need to plan for:

• Floor preparation and finished flooring.
• Ceiling installation or treatment of exposed ceilings.
• Internal partitions and doors.
• Lighting, power distribution and data points.
• Air-conditioning distribution within the unit.
• Fire alarm and firefighting provisions as required.
• Pantry, washroom or plumbing work where applicable.
• Joinery, furniture, signage and branding.
• Relevant technical approvals and inspections.

Not every project requires every item on this list. The scope depends on what the landlord has delivered, the intended use of the premises and the applicable building requirements.

Who Is Shell and Core Suitable For?

Shell and core can suit businesses that need greater control over the layout and technical design. It may be appropriate for a company planning a large headquarters, a specialised commercial facility or a space with specific operational requirements.

The main advantage is flexibility. The design can be developed around the business rather than adapting to an existing interior.

The trade-off is that more work remains before occupation. The budget and programme must account for the base interior services and finishes as well as the final fit-out.

What Is a Category A (Cat A) Fit-Out?

Category A fit-out is a basic level of internal completion that prepares a commercial space for the tenant’s own fit-out.

It is generally a neutral, functional finish rather than a fully designed workplace. The space may look complete, but it usually does not include the rooms, furniture, branding and detailed layout needed by a particular business.

In Dubai, landlords commonly offer commercial offices with a Category A handover, although the actual specification varies by building.

What Does Category A Include?

A typical Category A fit-out may include:

• Raised access flooring or a prepared and levelled floor.
• Suspended ceiling and basic lighting.
• General electrical distribution.
• Base air-conditioning distribution.
• Basic internal wall finishes.
• Fire detection and firefighting provisions appropriate to the base-building arrangement.
• Completed shared facilities, where included in the landlord’s scope.

These are typical examples, not a guaranteed package. Some buildings provide a more complete base fit-out, while others deliver a more limited specification.

For this reason, the landlord’s written handover specification matters more than the Category A label alone.

What Is Usually Missing from Category A?

A Category A office generally does not include the tenant’s final workplace arrangement, such as:

• Private offices and meeting rooms.
• Reception desks and branded feature walls.
• Business-specific partitions and glazed rooms.
• Custom joinery and storage.
• A fitted pantry designed around the tenant’s requirements.
• Final furniture, workstations and loose furnishings.
• Tenant-specific IT, AV and access control arrangements.

Some of these items may already exist in a previously occupied unit. Their presence should be checked during the site inspection rather than assumed from the category description.

Who Is Category A Suitable For?

Category A works well as a starting point for businesses that want a usable base but need to design the space around their own operations.

It can reduce the amount of base-building work required from the tenant compared with shell and core. However, the tenant still needs to budget for the elements that turn the neutral interior into a functioning workplace.

It is also important to check whether the existing Category A installations can be retained. A new layout may require changes to lighting, ceilings, air-conditioning distribution or fire safety systems.

What Is a Category B (Cat B) Fit-Out?

Category B fit-out is the stage at which the interior is designed around the specific needs of the business occupying the space.

It typically builds on the existing base-building or Category A condition. The work focuses on the layout, finishes, facilities, equipment and visual identity required for daily operations.

For most businesses, this is the stage where the office, shop or commercial interior begins to reflect how the organisation works and how it wants customers and employees to experience the space.

What Does Category B Include?

A Category B fit-out may cover:

• Space planning and partitions: Creating meeting rooms, private offices, collaborative areas, reception zones and other spaces required by the business.
• Flooring and wall finishes: Selecting carpet, tiles, vinyl, paint, wall panels or other finishes according to the design and intended use.
• Ceilings and lighting: Adapting ceiling details and lighting arrangements to the final layout, workstations and meeting areas.
• Reception and joinery: Designing reception desks, storage, display units, pantry cabinetry and other fitted elements.
• Furniture and workstations: Planning desks, meeting tables, seating and storage around the available space and working requirements.
• MEP modifications: Adjusting lighting, electrical outlets, data, air-conditioning distribution, plumbing or related systems to suit the proposed layout.
• Fire safety coordination: Modifying relevant fire alarm or firefighting arrangements where required by the new layout and applicable approvals.
• Branding and technology: Incorporating signage, brand colours, AV equipment, access control and other business-specific features.
• The final scope should be agreed in writing. Furniture, IT equipment, specialist systems and other items may be included in one contractor’s package but excluded from another.

Who Is Category B Suitable For?

Category B is appropriate for businesses that need a space tailored to their activities, identity and operational requirements.

An office may require enclosed meeting rooms, acoustic treatment, collaborative work areas and a staff pantry. A retail store may need display systems, customer circulation and branded finishes. A clinic or restaurant may have additional operational, technical and regulatory requirements.

The category describes the scope of fit-out work, not the quality of the final design. A basic Category B office and a premium corporate headquarters can both fall under the same category while having very different specifications and budgets.

 

Who Pays for Shell and Core, Category A and Category B?

The usual commercial arrangement is that the developer delivers the building structure and base infrastructure, the landlord provides the agreed Category A condition, and the tenant pays for the Category B fit-out.

However, this is not a fixed rule for every property or lease in Dubai.

Some landlords offer a shell and core unit and leave the tenant responsible for completing the interior. Others provide a more extensive base fit-out or offer a contribution towards the tenant’s works.

The lease agreement should clearly state:

• The condition in which the property will be handed over.
• The items included in the landlord’s scope.
• The work the tenant must complete.
• Responsibility for authority submissions and fees.
• Any landlord contribution or fit-out allowance.
• Requirements for reinstatement or removal of tenant installations at lease expiry.

Without this breakdown, a tenant may budget for work that is already included—or discover that essential items are excluded from the agreed handover.

How Do These Fit-Out Categories Affect Cost?

The starting condition of the unit is one of the biggest factors affecting the overall fit-out budget.

A shell and core project generally requires more work because the interior needs to be developed from a basic condition. A Category A space already has some essential finishes and services, while a Category B project focuses on adapting the existing space to the tenant’s requirements.

However, it is not possible to determine the final cost from the category alone.

Factors That Affect the Budget

1. Existing condition: A recently completed Category A unit may need fewer modifications than an older office with damaged finishes or outdated services.
2. Design complexity: Custom joinery, feature ceilings, specialist lighting and bespoke finishes affect the amount of work involved.
3. MEP requirements: Changes to air conditioning, electrical systems, plumbing, data infrastructure and fire safety arrangements can influence the budget.
4. Furniture and equipment: Workstations, meeting room furniture, AV systems and specialist equipment may form a substantial part of the project.
5. Approvals and compliance: Depending on the property and proposed work, authority fees, consultant services, technical documentation and inspections may need to be included.
6. Procurement and programme: Material availability, delivery requirements and the sequencing of different trades can affect both cost and completion.

A useful quotation should identify the starting condition, inclusions, exclusions, material specifications and assumptions. Comparing quotations without checking these details can give a misleading impression of which option is more economical.

How Do the Categories Affect the Fit-Out Timeline?

The amount of work remaining at handover affects how much preparation and execution the project requires.

A shell and core project typically involves more design development, service coordination and construction. A Category A space may allow the team to concentrate on the tenant’s layout and finishes, provided the existing installations are suitable. A Category B project can still take considerable time if it includes extensive customisation or technical changes.

The schedule should account for:

• Site assessment and verification of existing conditions.
• Design development and coordination.
• Landlord and authority approvals, where required.
• Material selection and procurement.
• Construction and installation.
• Testing, inspections and handover requirements.

Late changes can affect all three categories. For example, adding meeting rooms to a Category A office may require changes to ceiling layouts, lighting, air conditioning and fire safety systems.

The most reliable timeline comes from a site assessment and a clearly defined scope, rather than the category name alone.

What Approvals Are Required for Fit-Outs in Dubai?

Fit-out approval requirements depend on the property’s jurisdiction, building management procedures and proposed scope.

A commercial unit may require a landlord or developer NOC, a fit-out permit from the responsible authority and additional technical clearances where applicable. Fire safety, MEP modifications, structural changes and external works can introduce further requirements.

The relevant authority may be Dubai Municipality, Dubai Development Authority, DMCC, JAFZA, Trakhees or another organisation, depending on the property.

The category of fit-out does not automatically determine which approvals are required. A Category B project that changes fire safety systems may need additional review, while a project involving more extensive shell and core work may require a broader set of submissions.

Before work begins:

1. Confirm the authority responsible for the property.
2. Check the landlord’s fit-out manual and handover requirements.
3. Establish the documents and drawings required.
4. Identify any additional fire safety or technical clearances.
5. Confirm when work can legally and contractually begin.

Approval requirements should be verified for the specific property rather than assumed from a general fit-out checklist.

Which Fit-Out Category Should a Business Choose?

The decision starts with the unit’s actual condition and the business’s requirements. Rather than choosing a category based on its name, compare the work remaining, the level of customisation needed and the responsibilities set out in the lease.

1. Choose Shell and Core When: The space is largely unfinished and the business wants substantial control over the layout, technical systems and interior design. This option requires careful planning because more work remains before the premises can be occupied.
2. Choose Category A When: The landlord has provided a basic internal finish and the business wants to develop its own workplace on that foundation. Check whether the existing ceilings, flooring, lighting and services can be retained before finalising the budget.
3. Plan for Category B When: The space already has a suitable base condition and needs business-specific partitions, finishes, joinery, furniture, technology or other interior elements. This is commonly the main scope when a tenant commissions its own office or commercial fit-out.For many tenants, the practical question is not which category is best, but what the landlord has actually delivered and what the tenant still needs to fund.

How Atech Interiors Can Help

Atech Interiors provides interior fit-out services in Dubai, helping businesses plan and execute commercial interiors according to the property’s condition and the requirements of the project.

The starting point is to review the existing space, establish the intended layout and define the work required. This helps clarify whether the project needs a more extensive interior build-out or can focus on adapting an existing base fit-out.

The team can coordinate design, materials, joinery, relevant technical work and execution planning according to the agreed scope. Approval requirements should also be identified early so that documentation and clearances are included in the project programme where necessary.

For a clearer understanding of the work involved, explore Atech Interiors’ fit-out services or review its residential and commercial portfolio.

To discuss a new office or commercial space, contact Atech Interiors with the property location, current handover condition and intended use.

Frequently Asked Questions

1. What is the main difference between shell and core, Category A and Category B fit-out?

Shell and core is the basic building condition, with much of the interior unfinished. Category A adds a neutral base level of internal finishes and services. Category B adapts that space to the tenant’s needs through partitions, finishes, joinery, furniture, technology and related modifications.

2. Is Category A fit-out included in the rent in Dubai?

It depends on the lease and the landlord’s handover agreement. Some landlords provide Category A as part of the agreed property condition, while others offer a different level of completion or a contribution towards fit-out work. Check the written handover specification before signing.

3. What is included in a Category B fit-out?

A Category B fit-out commonly includes business-specific layouts, partitions, meeting rooms, reception areas, finishes, joinery, lighting modifications, furniture and technology. MEP and fire safety modifications may also be required. The actual scope depends on the project and should be documented in the contractor’s quotation.

4. Which fit-out category is the most expensive?

Shell and core generally requires the most extensive construction because more of the interior needs to be completed. However, a highly customised Category B project can also have a substantial budget. The final cost depends on the existing condition, specifications, technical work and agreed scope.

5. Can a tenant take over a shell and core office and complete everything?

Yes, subject to the lease, building requirements and applicable approvals. The tenant may need to arrange design, technical documentation, internal services, finishes and other work before the office is ready for occupation. The permitted scope and handover requirements should be confirmed with the landlord and relevant authority.

6. How long does a Category B fit-out take in Dubai?

The timeline depends on the space size, design complexity, existing conditions, procurement and approval requirements. A straightforward office layout may require less work than a project involving extensive joinery, technical changes or specialist systems. A realistic programme should be prepared after the site and scope have been assessed.

7. Does a Category A office need additional approvals before a Category B fit-out?

Additional approvals may be required depending on the property, proposed work and responsible authority. Changes to layouts, fire safety systems, building services or structural elements can trigger further requirements. Confirm the approval route before starting work.

8. What is the difference between Category A and Category B office fit-out?

Category A provides the basic internal condition, such as general flooring preparation, ceilings, lighting and service distribution. Category B creates the office layout and finishes required by a particular business, including meeting rooms, partitions, reception, furniture, branding and relevant system modifications.

9. Can existing Category A finishes be reused during Category B work?

Yes, where the existing finishes and systems are in suitable condition and meet the needs of the new layout. Reusing suitable elements may reduce unnecessary removal and replacement. However, compatibility with the proposed design, technical requirements and applicable approvals should be checked first.

10. How can Atech Interiors help with a shell and core or Category B fit-out?

Atech Interiors can help assess the existing space, define the fit-out scope and coordinate design and execution requirements. The work depends on the property’s handover condition, intended use and technical requirements. Sharing the property location and project brief helps establish the next steps.

Plan the Fit-Out Around the Actual Handover Condition

Shell and core, Category A and Category B describe different stages of interior completion. The right starting point depends on what the landlord provides, what the business needs and which work remains before the space can be occupied.

Before committing to a lease or fit-out budget, review the handover specification, inspect the existing installations and establish the full scope of work. This provides a more reliable basis for comparing quotations, planning approvals and setting a realistic completion date.

For guidance on a commercial fit-out in Dubai, contact Atech Interiors to discuss the property and project requirements.