A Category A (Cat A) fit-out overhauls an empty building shell into a usable, safe and functional space, ready for your design team or tenants to take over and customise. It involves installing heating and cooling systems as well as basic electrical, plumbing and lighting components.

And demand for Cat A fit-out services is growing. The flexible workplace trend means landlords and tenants alike are seeking more adaptable spaces. A solid Cat A fit-out provides the perfect blank canvas with basic electrical and mechanical services, as well as suspended ceilings, raised floors and internal surfaces.

• What Does A Cat A Fit-Out Include?
• What Does A Cat A Fit-out Not Include?
• Why Landlords Invest In Cat A Fit-Outs
• Why Cat A Matters to Tenants
• Who Pays For A Cat A Fit-out?
• What To Watch Out For In Cat A Projects
• How Your Business Benefits From A Thoughtfully Delivered Cat A Fit-Out

What Does A Cat A Fit-Out Include?

At its core, a Cat A fit-out provides the foundational elements that make a space ready to occupy from a building compliance perspective, but without any tenant-specific design.

Here’s what you’ll typically find in a Cat A fit-out:

• Raised access floors (to allow for flexible cabling and IT infrastructure).
• Suspended ceilings with lighting grids.
• Internal wall and floor surfaces (basic but presentable).
• HVAC systems (heating, ventilation and air conditioning).
• Mechanical and electrical services (including power points, lighting and plumbing).
• Fire detection and alarm systems.
• Toilet facilities.
• Window blinds.

In other words, it’s the stage where a building becomes ready for the next layer of customisation (usually a Cat B fit-out).

What Does A Cat A Fit-out Not Include?

Although Cat A fit-outs provide all the basic infrastructure to get an office space up and running, they usually don’t include any tailored elements or internal finishes. As a result, it’s important to know what’s included in your lease and what falls under your Cat B responsibility.

Usually, a Cat A fit-out won’t include the following:

• Decorative touches (e.g. branding elements, artwork, or plants)
• Office furniture (e.g. desks, chairs, or storage)
• Soft furnishings (e.g. carpets, curtains, or acoustic panelling)

Why Landlords Invest In Cat A Fit-Outs

A Cat A fit-out provides a clear starting point for Cat B works, where tenants can implement their own branding and layouts. But, there’s additional reasons why landlords opt for a well executed Cat A fit-out:

• Improves marketability – Spaces that are clean, functional and ready-to-go attract more interest from potential tenants.
• Reduces void periods – Tenants can visualise the potential and move in faster.
• Supports flexible leasing models – Cat A provides a neutral space suitable for multiple types of businesses.

Why Cat A Matters to Tenants

From a tenant’s perspective, understanding the scope of Cat A is critical when budgeting and planning an office move or refurbishment. A space delivered to Cat A standard saves time and cost on infrastructure but still leaves flexibility to:

• Create branded environments
• Design layouts that support your work style
• Specify your choice of finishes and furniture

Who Pays For A Cat A Fit-out?

In most instances, landlords foot the bill for a Cat A fit-out. However, to save both landlords and tenants from issues arising later down the line, it’s always best to clarify who is responsible for paying for each element of the fit-out.

What To Watch Out For In Cat A Projects

• Specification clarity: Cat A definitions vary, always confirm what’s included with your landlord or contractor.
• Coordination: Poorly planned Cat A works can complicate Cat B. Partner with a fit-out team who can coordinate both phases.
• Quality: A cheap Cat A fit-out might save a landlord money upfront but cause problems later. Look for partners who value quality at every stage.

How Your Business Benefits From A Thoughtfully Delivered Cat A Fit-Out

Both landlords and tenants can reap the rewards of a well-executed Cat A fit-out. Let’s dive deeper into what those advantages could look like…

Clear Starting Point

A quality Cat A fit-out provides a predictable foundation for your project. You won’t be distracted by mechanical or compliance issues and can focus on the fun part: creating a great space.

Faster Project Delivery

With services, fire protection and core infrastructure already installed, your Cat B works can proceed without unnecessary delays.

Budget Clarity

When the scope of Cat A is well defined, there’s less risk of duplicate works or cost surprises during your fit-out project.

Flexible Futureproofing

Modern Cat A fit-outs incorporate adaptable infrastructure — ideal if you plan to evolve or scale your workspace over time.

Planning Your Fit-Out? Let’s Make It Simple

Understanding exactly what a Cat A fit-out covers is just the first step. The real challenge is what happens next, and that’s where we come in.

Our office fit-out specialists in London help landlords and tenants avoid pitfalls to deliver workplaces that actually work.

So, get in touch with our team today and we’ll help you navigate the process with clarity and confidence.