A spacious open-plan office space at Programme Building with large windows allowing natural light to flood the room. Exposed ductwork and industrial-style lighting fixtures add to the contemporary design.

Cat A Fit out

Delivering flexible, high-quality Cat A Fit outs, creating functional spaces that can be customised to meet tenant or landlord needs.

Our Cat A fit out services are tailored to deliver high-quality, ready-to-use environments, ideal for landlords or tenants seeking to customise their office space to meet their own requirements.

What is a Cat A fit out?

A Cat A fit out, also known as a ‘landlord fit out,’ involves developing a commercial space to a basic, functional standard. This is typically the first fit out that occurs after the ‘shell and core’ stage, leaving the interior of the building as a blank canvas. It includes the installation of essential components such as electrical systems, plumbing, mechanical services, suspended ceilings, and raised access flooring, as well as fire detection and air conditioning systems. 

An expansive indoor area at Voysey House, with an arched ceiling and large industrial-style windows. White pillars support the light, wooden, open-plan space.

Why choose Ambit?

With our expertise, you can be assured that every Cat A fit out project is completed to the highest standards, on time, and within budget. We have a proven track record of transforming empty shells into versatile spaces that maximise the potential of your commercial property. Our approach is designed to provide the perfect starting point for occupiers to establish and contract out their own design and construction.

Open workspace at Chiswick Business Park Building 3, showcasing an industrial aesthetic with exposed ceilings, polished flooring, and expansive glass walls, creating a spacious and modern environment.

Our services include:

  • We provide high-quality installation of lighting, HVAC, plumbing, and electrical services to ensure the space is fully functional and ready for occupation.

  • Our team ensures that finishes such as suspended ceilings, raised floors, and other features are installed to industry-leading standards, leaving the space clean, modern, and ready for customisation.

  • We guarantee that all our work adheres to current building regulations and safety standards, ensuring a compliant and safe space for future tenants.

Transforming your space

We believe in creating the foundations for inspiring workspaces. Our Cat A fit out solutions pave the way for bespoke interior designs, allowing businesses to take full control of the aesthetic and functional aspects of their new office. By providing a high-quality starting point, we empower landlords to attract potential tenants and businesses to establish a new base efficiently.

Expansive interior at 25 North Colonnade with polished floors, exposed ceiling ductwork, colourful wall displays, and floor-to-ceiling windows, creating a modern and industrial workspace.

Featured Projects

Glen House
Modern lobby at Glen House with illuminated ceiling panels, abstract artwork on the walls, and potted cacti on either side, leading to a sleek reception desk and stairs. Find out more
Glen House
W6, London 30,000 SQ FT Property & Serviced Office
We partnered once again with Romulus Construction to refurbish three floors at Glen House, delivering an exposed soffit CAT A fit-out. The project involved significant upgrades to all common corridors, staircases, and a complete reception refurbishment, while the building remained fully occupied and multi-tenanted.
30 Cannon Street
The image shows a spacious room with large windows, allowing natural light to flood the space. The interior features concrete pillars, exposed ceilings with ductwork, and reflective tiled flooring. Outside, a commercial building can be seen. Find out more
30 Cannon Street
EC4, London 9,000 SQ FT Property & Serviced Office
On behalf of Romulus Construction, we delivered a CAT A and CAT B fit out at 30 Cannon Street, a listed building in the heart of London. Working on the ground floor of an occupied building, we ensured minimal disruption to existing tenants while navigating the challenges of a listed property.
Chiswick Business Park, Building 3
The reception atrium space in Chiswick Business Park Building 3, with a central staircase, abundant greenery, curated shelving with decorative items, and comfortable seating areas, creating a welcoming environment within a light-filled, glass-enclosed setting. Find out more
Chiswick Business Park, Building 3
W4, London 28,000 SQ FT Property & Serviced Office
Partnering with Revantage Europe at Chiswick Business Park, Building 3, we refurbished a building ready to welcome future tenants. The reception’s custom reception desk, joinery wall panelling, and signage create a welcoming experience.
Chiswick Business Park, Building 5
Spacious Interior of Chiswick Business Park Building 5: A spacious and modern open-plan interior of Chiswick Building 5, featuring concrete columns and ceiling with exposed panels and integrated lighting. The floor is polished, reflecting the lights above. Find out more
Chiswick Business Park, Building 5
W4, London 28,000 SQ FT Property & Serviced Office
Continuing our collaboration with Revantage Europe at Chiswick Business Park, we designed the CAT A refurbishment of Building 5 to provide a flexible, future-ready space. This approach offers a blank canvas for future tenants to complete their fit-out.

Explore more Cat A projects.

The dining area at 7 Bishopsgate Level 4, including bespoke booths and biophilic design.

Client Testimonials

“I don’t think I have ever had a project where I have needed to do so little – which is a very refreshing change! Thanks to Ambit for just getting on with it, getting it delivered on time and for the requisite quality with very few hiccups along the way (at least that I was aware of!)”

BentallGreenOak

7 Bishopsgate, L4

Collaborative workspace at 3 St Helens Place with a high table and bar stools, pendant lighting, desk partitions, and greenery integrated into storage units for a modern office environment.

Client Testimonials

“Ambit were responsible for fitting out three CAT B floors of our new office building in St Helen’s Place. We found them to be responsive to our requests, user friendly, and they completed the projects on time and on budget.”

The Leathersellers

3 St Helens Place

Stylish reception area at Numa with modern decor and greenery - created by Ambit for an inviting space

Client Testimonials

“Working with Ambit was a pleasure. Warren, our project manager, communicated clearly, solved issues quickly, and made sure we were supported throughout. His dedication ensured the project finished on time and to a high standard. Thank you, Warren and team!”

Numa

York Street

Client Testimonials

“Ambit refurbished our offices last summer, and the experience was excellent from start to finish. The team was responsive, the quotes were clear, and having a dedicated project manager made everything seamless. We’re very happy with the result and highly recommend Ambit.”

Said Foundation

272 Kings Road

Stylish reception area at 3 St Helens Place, featuring modern seating, indoor plants, a statement ceiling light, and glass partition walls that reveal a collaborative workspace beyond.

Client Testimonials

“Ambit delivered a great office fit out and provided a thorough walkthrough before we moved in. They’ve been responsive and honest with any issues, making the whole process much smoother.”

Lascaux Partners

St Helens Place