Design & Build Interior Architecture London
Design & Build. One team. From concept to completed space.



Interior projects in London are rarely just design exercises.
They require architects, contractors, engineers, approvals, suppliers and trades — all coordinated on tight programmes and budgets.
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Kapeti delivers integrated design & build interior architecture, where design, technical coordination and construction are executed by one team from the very beginning.
From early concept design and planning permissions to bespoke joinery production, construction and final handover, we guide projects from the first idea to a finished space ready to use.
Our work spans restaurants, offices and high-end residential interiors across London and the UK.
HOW A DESIGN & BUILD PROJECT ACTUALLY WORKS
Concept & feasibility
We begin with concept design, layout studies and early technical input.
For commercial spaces this may include landlord drawings, Licence to Alter submissions and early feasibility discussions with consultants.
Clients often approach us before signing a lease or purchasing a property, allowing us to assess viability, costs and technical constraints from the start.
Design development
Interior architecture is developed in detail.
Space planning
3D visuals
Technical drawings
Material specifications
Lighting design
Bespoke joinery and furniture design
Every element is coordinated before construction begins.
Technical coordination & approvals
We coordinate all technical consultants and approvals required for the project.
Structural engineers
Building control submissions
Fire strategy
Principal designer coordination
Planning permission where required
MEP design and coordination
The goal is simple: a buildable project with no surprises on site.
Construction
Once construction begins, the same team that designed the project manages the build.
Structural works
Mechanical, electrical and plumbing systems
Bespoke joinery installation
Finishes and materials
Lighting and furniture installation
Because design and construction are integrated, problems are solved quickly and decisions remain consistent with the original concept.
Procurement & coordination
Furniture, fixtures and equipment are ordered, tracked and delivered to site in sequence.
Many bespoke pieces are designed by Kapeti and manufactured through trusted production partners, allowing complex elements to be delivered within realistic budgets and timelines.
Certifications & handover
All systems are tested and certified before completion.
Electrical certification
Gas certification
Fire systems
Building control sign-off
The space is professionally cleaned and handed over ready for occupation.
What This Means for You
While we run the project, you focus on your business or your life.
Instead of coordinating multiple consultants, contractors and suppliers, you work with one team responsible for the entire project.
You meet with us at key decisions — concept approval, materials, layouts and finishes — while the technical coordination, compliance submissions and construction management are handled by us.
The result is a project that moves efficiently from concept to completion, with clear responsibility, predictable timelines and a design that remains intact throughout construction.


DESIGN & BUILD FOR DIFFERENT TYPES OF PROJECTS
Kapeti delivers design & build interior architecture across several sectors:
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Restaurant design & fit-out London
Complete hospitality projects from landlord drawings to opening night.
→ Restaurant Fit Out London
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Office design & fit-out London
Workspaces designed to support teams, clients and brand identity.
→ Office Fit Out London
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Residential interior renovation London
High-end apartments and houses redesigned, coordinated and built by one team.
→ Home Renovation London
Common Questions
1. Do you handle planning permissions and approvals?
Yes. We coordinate planning submissions, building control approvals, fire strategy documentation and technical consultants as part of the design & build process..
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2. Can you help before we secure a property?
Yes. Many clients approach us before signing a lease or purchasing a property so we can assess feasibility, layout potential and approximate project costs.
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3. Can you act as principal contractor and principal designer?
Yes. Kapeti can take on both roles under CDM Regulations, providing a single point of accountability for design, construction and compliance.
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4. Do you work on both commercial and residential projects?
Yes. Kapeti delivers design & build interior architecture for restaurants, offices and high-end residential properties across London and the UK.
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5. Is design & build more efficient?
Yes. Because design decisions and construction realities are coordinated from the beginning, projects typically move faster and avoid many of the delays that occur when design and construction are separated.
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6. How long does a design & build project take?
Timelines vary by project type. Restaurant fit-outs typically take 12–24 weeks from design to handover. Office fit-outs 8–16 weeks. Residential renovations 8–16 weeks. We agree a fixed programme at the start and manage to it.
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7. How much does a design & build project cost in London?
Every project is priced individually based on scope, size and specification. As a general guide, restaurant fit-outs typically range from £250,000 to £500,000+, office fit-outs from £50 to £150 per sq ft, and residential projects from £80,000 upwards. We provide a detailed budget breakdown after the initial consultation.
Thinking about a new interior project in London?
The earlier you involve the design & build team, the smoother the project will be.
We regularly work with clients before they secure a site or sign a lease, helping them understand feasibility, programme and realistic budgets.
Whether it's a restaurant, office or home — the first conversation is free.
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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
