An office fit-out prepares a commercial space so a business can occupy and use it. An office refurbishment improves or reorganises a workplace that is already fitted out. The two often overlap, but the right description depends on the starting condition of the space and the scale of work required.

If you are moving into a largely empty unit, you are more likely to need a fit-out. If your current office is functional but tired, inefficient or no longer suitable for the way your team works, refurbishment is usually the more accurate route.

Understanding the difference helps landlords, occupiers and facilities teams set a clearer scope, compare quotations fairly and avoid assumptions that can affect cost or programme later.

What is an office fit-out?

An office fit-out turns an empty, basic or partly completed commercial unit into a workplace that is ready for occupation.

Depending on the condition of the building, the work may include:

• partitions and internal doors;

• suspended ceilings and flooring;

• lighting, power and data;

• heating, cooling and ventilation alterations;

• meeting rooms and private offices;

• kitchens, tea points and washrooms;

• fire-safety measures and signage;

• furniture, storage and workplace equipment; and

• decoration, branding and final finishes.

The terms Cat A and Cat B are commonly used in commercial property, although the precise scope can vary between buildings and leases. A Cat A space usually provides a basic landlord finish and core building services. A Cat B fit-out adapts that space to the occupier’s operational, technical and brand requirements.

Before relying on either label, ask for a written schedule that states exactly what is present, what will be retained and what the contractor is expected to provide. Our guide to Cat A and Cat B office fit-outs explains the distinction in more detail.

What is an office refurbishment?

An office refurbishment upgrades an existing workplace rather than creating one from a largely blank starting point.

The building may already have working offices, lighting, power, flooring, ceilings and staff facilities, but parts of the space need to be repaired, replaced or reorganised. A refurbishment may be cosmetic, operational or a combination of both.

Typical work can include:

• redecorating and replacing worn finishes;

• new flooring or ceiling tiles;

• glazed or solid partitions;

• changes to office layouts and door positions;

• lighting and electrical alterations;

• plumbing, kitchen or toilet improvements;

• furniture changes and storage upgrades;

• fire-door, fire-stopping or emergency-lighting work; and

• repairs or upgrades to existing building services.

Refurbishment is often the practical choice when the location and overall building still work for the business, but the interior no longer supports the team, brand or day-to-day operation.

Office fit-out vs refurbishment: the key differences

Starting point

A fit-out usually begins with an empty, shell, Cat A or stripped-back commercial space. A refurbishment begins with an office that has already been occupied or fitted out.

Main objective

A fit-out creates the workplace required for occupation. A refurbishment improves, repairs or reconfigures an existing workplace.

Typical scope

A fit-out can involve most of the internal workplace infrastructure, from partitions and services to furniture and finishes. A refurbishment may be more selective, although a major refurbishment can be just as extensive as a fit-out.

Occupation and disruption

Fit-out work is often completed before staff move in. Refurbishment may need to take place around an operating business, which makes phasing, access, dust control, noise and temporary arrangements more important.

Existing services

A fit-out team must understand what the landlord or previous contractor has provided. A refurbishment team must establish the condition, capacity and compliance of services already in use.

Cost and programme

The project label does not determine the price. Floor area, access, working hours, surveys, specification, electrical work, plumbing, ceilings, flooring, partitions, furniture and approvals all have a greater effect.

As a broad guide, Barry Turner & Son office refurbishment projects can range from approximately £5,000 to £120,000 including VAT, with site programmes often falling between two and eight weeks. A larger or more complex fit-out can sit outside those ranges. A site review and defined scope are needed before either figure becomes a reliable quotation or programme.

For a more detailed breakdown, read our practical guide to office refurbishment costs in London.

Can a project be both a fit-out and a refurbishment?

Yes. Many commercial projects contain elements of both.

A business may refurbish an existing reception and open-plan office while fitting out a new meeting suite, kitchen or additional floor. A landlord may retain usable ceilings and services but require a new occupier layout, furniture package and finishes. An office move may also involve refurbishing part of a previously occupied unit rather than starting from a true blank canvas.

The most useful approach is to describe the actual work instead of forcing the project into one label. A room-by-room scope should show what will be retained, removed, altered, supplied and tested.

Which route is right for your office?

Start with five practical questions.

1. What condition is the space in now?

Record the existing layout, finishes, services, furniture and known defects. Photographs, drawings and previous test information can help, but a site survey is usually needed to confirm what is reusable.

2. Are you staying or moving?

An existing occupied workplace generally points towards refurbishment. A newly leased space may need a fit-out, although the answer depends on what the landlord is handing over.

3. What must change for the business to operate properly?

Separate essential changes from desirable improvements. Staff numbers, attendance patterns, meeting requirements, storage, accessibility, power, data, ventilation and welfare facilities should be considered before selecting finishes.

4. Can the office close during the work?

An empty site allows a simpler construction sequence. If the workplace must remain operational, the brief should identify working hours, temporary routes, segregated areas, daily cleaning and phased handovers.

5. What does the lease require?

Confirm the landlord’s consent process, alteration restrictions, reinstatement obligations and the condition in which the premises must eventually be returned. Do this before agreeing a design or contractor programme.

What should be confirmed before quotations are requested?

A useful quotation brief should include:

• the project address and areas included;

• current and proposed plans where available;

• the business reason for the work;

• staff numbers and occupancy requirements;

• items to retain, remove or replace;

• building-services and compliance information;

• landlord, access and working-hour restrictions;

• the target completion date;

• the VAT-inclusive budget range; and

• the testing, certification and handover information required.

Providing the same information to each contractor makes quotations easier to compare on a like-for-like basis. Our office refurbishment briefing guide provides a fuller checklist.

Do fit-outs and refurbishments have different compliance requirements?

Both can involve legal and technical duties. The requirements depend on the work, the building and how it is occupied, not simply whether the project is called a fit-out or refurbishment.

Commercial clients have duties under the Construction (Design and Management) Regulations 2015, including making suitable project-management arrangements, allowing sufficient time and resources and providing relevant pre-construction information. Layout and building work can also affect fire precautions, escape routes, accessibility, electrical systems, ventilation and building-regulations approval.

The responsible person for a non-domestic premises must maintain and review the fire risk assessment and appropriate fire-safety measures. Proposed layout or use changes should therefore be checked against the existing fire strategy rather than treated as a finishes-only decision.

Review our office refurbishment permissions checklist early, and obtain project-specific professional advice where required.

How Barry Turner & Son approaches the decision

Barry Turner & Son starts with the existing space, the intended workplace and the practical constraints around delivery. The team can then help define whether the requirement is best treated as a focused refurbishment, a wider commercial fit-out or a combined scope.

That early definition helps coordinate layout changes, finishes, ceilings, flooring, electrical work, plumbing, toilets and other building services around one agreed brief. It also makes it easier to identify surveys, permissions and client decisions before they affect work on site.

The commercial refurbishment and fit-out service explains the delivery route from initial discussion and site review through to completion and handover. You can also view the Heathrow office refurbishment project for an example of a coordinated workplace upgrade.

The short answer

Choose an office fit-out when a new, empty or substantially stripped space needs to be made ready for occupation. Choose refurbishment when an existing workplace needs to be upgraded, repaired or reorganised. If the project includes both, define it through a detailed scope rather than relying on the label alone.

To discuss the most suitable route for your workplace, request a free quotation and site review. Barry Turner & Son supports commercial refurbishment and fit-out projects across London and the South East.