KAPETI INTERIOR ARCHITECTURE
Office Fit-Out London
A space that works as hard as your business does.
Your office is not just where your team works. It's what your business looks like from the inside.
The layout determines how efficiently your team operates. The design communicates your brand to every client, partner and new hire who walks through the door. The technical infrastructure — data, power, lighting, HVAC — determines whether the space performs or frustrates, day after day.
Getting all of this right requires more than a good designer. It requires someone who understands how people actually work, how spaces actually get built, and how to coordinate every stage — design, approvals, construction, procurement and handover — without losing the original vision along the way.
That is what Kapeti does.
Understanding CAT A, CAT B and Office Refurbishment
CAT A — Shell & Core to Base Fit-Out The building's infrastructure is complete but the space is bare. Raised floors, suspended ceilings, basic lighting and HVAC — but no interior layout, no partitions, no branding. Starting point for most new office tenancies.
CAT B — Full Fit-Out The complete, branded, ready-to-occupy workplace. Partitions, meeting rooms, kitchen, reception, lighting design, furniture, joinery and finishes — all tailored to your company and your team.
Refurbishment — Existing Office Your current office, improved. New layout, updated infrastructure, refreshed finishes — delivered in phases where needed to minimise disruption to your operations.
How We Approach an Office Project
Discovery & brief
We visit your current space, speak with your leadership team and — where relevant — your staff. We want to understand not just what you want the office to look like, but how your team actually works, how they move through the space, what frustrates them and what would make them more effective.
Concept design & layout
Space planning, 3D visualisations, material palettes and lighting strategy — all developed around your brand, your culture and your operational needs. We present options. We refine until it's right.
Landlord approvals & compliance
Where required, we prepare landlord submissions, Licence to Alter documentation and building control applications. We manage the approval process so you don't have to.
Technical design & infrastructure
Full CAD drawings, MEP coordination — data, power, lighting, HVAC — structural liaison and all specifications prepared for construction.
Construction & fit-out
CAT A or CAT B delivery, partitioning, flooring, ceilings, joinery, furniture installation and final dressing. Bespoke elements designed and produced in-house, delivered to site on programme.
Handover
Certifications, documentation, professional clean. Your team moves in. 12-month warranty on all works.
Why Clients Choose Kapeti for Office Fit-Out
Faster than most London firms. We deliver on timelines that larger office fit-out companies won't commit to — because we control design, production and construction in-house. Less coordination. Less delay.
Design-led, not contractor-led. Most fit-out contractors treat design as a preliminary phase. We treat it as the foundation of every decision on site. The result is a space where the details are right — not just the headline renders.
Bespoke without the premium wait. Reception counters, joinery, partitioning and custom furniture are designed by us and produced through our manufacturing partners in Turkey and Portugal — delivering exceptional quality faster and at better value than comparable UK suppliers.
One team, one contract. You deal with us. Not a designer, a contractor and a project manager who have never worked together before.
Who We Work With
We work with businesses fitting out new offices, companies refurbishing existing spaces, retailers opening new branches, landlords completing CAT A works and developers preparing commercial units for letting. We also work alongside architects and designers who need a reliable contractor to deliver their vision.
Whether you have a full brief or just an empty space — we're worth speaking to early.
Common Questions
1. We haven't signed a lease yet — is it too early to speak to you?
No — it's the right time. We regularly work with clients before they've committed to a space, helping them understand what a fit-out will cost, how long it will take, and whether the building is suitable.
2. What's the difference between CAT A and CAT B fit-out?
CAT A is the base building — infrastructure installed but no interior layout. CAT B is the complete, branded workplace ready for your team to move into. Most tenants take a CAT A space and commission a CAT B fit-out.
3. How long does an office fit-out take in London?
Smaller offices (under 2,000 sq ft) typically take 6–10 weeks. Larger or more complex projects run 12–20 weeks. We'll give you a realistic programme at the outset — not an optimistic one that slips.
4. How much does an office fit-out cost in London?
CAT B fit-outs in London typically range from £50–£150 per sq ft depending on specification. Bespoke joinery, high-end finishes and complex MEP requirements push costs higher. We provide a detailed budget breakdown before any work begins — no surprises.
5. Do you work with landlords and developers as well as occupiers?
Yes. We deliver CAT A works for landlords preparing spaces for letting, and we work with developers on commercial units within mixed-use schemes.
6. Can you work alongside our existing architect or designer?
Yes. Some clients come to us with an existing concept and need a contractor to deliver it. Others need us to lead the design from scratch. We adapt to your project structure.
Thinking about an office fit-out in London?
The earlier you involve us, the smoother the process. We offer a free initial consultation — on site, no cost, no obligation.
The first conversation is free.
One team. One contract. No handovers. No surprises.
One team. One contract. No handovers. No surprises.
Work With Us
If you're planning a restaurant, home or office in London or across the UK and you want one team to take it from concept to keys — we'd like to hear about your project.
+44 734 2240695