Complete Office Transformation Solutions from Base Build to Bespoke Interiors
Specialist Cat A & Cat B Fit Out London
Imperial Building Solutions delivers comprehensive Cat A and Cat B fit out services across London, providing end-to-end workspace solutions for commercial landlords and tenants.
Our expert team specialises in both the fundamental Cat A infrastructure work that prepares bare spaces for occupation and the customised Cat B fit outs that transform blank canvases into branded, functional working environments.
With our integrated approach to design, technical delivery, and project management, we ensure seamless transitions between Cat A and Cat B phases, optimising timelines and creating cohesive, high-performance workspaces.
Our director-led team provides transparent guidance and communication throughout both Cat A and Cat B processes—from initial shell and core assessment through to the final handover of fully-furnished, operational offices.
Specialist Cat A & Cat B Fit Out London
Understanding Cat A & Cat B Fit Outs
The distinction between Cat A and Cat B fit outs represents the fundamental stages of commercial office development, with each phase serving distinct purposes in the creation of functional workspaces.
Our specialists excel in managing the critical transition between these phases, ensuring technical compatibility and design continuity that maximises efficiency and minimises delays.
With extensive experience delivering integrated Cat A and Cat B projects across London, our team has established expertise in creating spaces that satisfy landlord requirements while meeting tenant expectations for modern, flexible working environments.
Whether you’re a property developer preparing a speculative office space or a tenant requiring both base build improvements and interior customisation, our comprehensive service ensures a coordinated approach that delivers exceptional results.
By choosing Imperial Building Solutions for your complete Cat A and Cat B fit out needs, you benefit from streamlined project management, consistent quality standards, and the advantages of working with a single contractor throughout your office development journey.
Creating Premium Blank Canvas Spaces for Landlords
Cat A Fit Out Services
Our Cat A fit out services transform bare shell structures into high-specification, ready-to-let office spaces that attract quality tenants and command premium rental values.
We specialise in delivering compliant, contemporary Cat A specifications that establish the essential infrastructure and finishes required for comfortable occupation, while leaving appropriate flexibility for future tenant customisation.
Our consultative approach helps commercial landlords develop Cat A specifications that align with current market expectations while optimising investment value and ensuring regulatory compliance.
With our expertise in sustainability and building standards, we deliver Cat A fit outs that anticipate future regulations, protecting your investment and enhancing marketability to environmentally-conscious tenants.
Choose your high-quality office fit out partner
Imperial are ready to support you through the entire fit out process.
Reach out to our team today to get started.
Transforming Blank Canvases into Branded, Functional Workplaces
Cat B Fit Out Services
Our Cat B fit out services take standardised Cat A spaces and transform them into distinctive, fully-functional working environments that reflect your brand identity and support your operational requirements.
We deliver comprehensive Cat B solutions that cover everything from space planning and interior design to furniture procurement and technology integration, creating workplaces tailored to your organisation’s unique culture and workflow patterns.
We take time to understand your organisational needs, workplace culture, and growth projections, developing Cat B designs that balance immediate requirements with future flexibility.
Our detailed approach to Cat B delivery ensures your workspace not only looks impressive but functions efficiently, supporting productivity and employee wellbeing through thoughtful design and quality finishes.
Seamless Progression from Shell to Finished Workplace
Integrated Cat A & Cat B Solutions
For projects requiring both Cat A and Cat B works, our integrated service offers significant advantages in coordination, quality control, and timeline efficiency.
Our ability to manage the complete process eliminates the handover complications and potential compatibility issues that can arise when using separate contractors for different fit out phases.
Benefits of our integrated Cat A & Cat B approach:
- Streamlined Project Timeline with Overlapping Phases
- Consistent Quality Control Throughout
- Technical Compatibility Between Infrastructure and Finishes
- Single Point of Responsibility and Communication
- Cost Efficiencies Through Coordinated Procurement
- Cohesive Design Vision from Base Build to Final Details
Our project teams are structured to provide specialised expertise at each stage while maintaining continuity of leadership and communication, ensuring a smooth transition from Cat A infrastructure to Cat B finishes.
For tenants taking on shell spaces or landlords delivering fully-fitted options, our integrated service provides the most efficient path to creating exceptional workplaces that satisfy all stakeholders.
Why Choose Us for Your Cat A & Cat B Fit Out Projects?
The Imperial Advantage
When selecting Imperial Building Solutions for your office development, you’re partnering with specialists who understand the technical complexities and creative opportunities at every stage of the fit out process. Our experienced team manages multiple project phases under single-point responsibility, ensuring seamless execution and consistent quality standards.
Technical Excellence
Advanced expertise in both infrastructure systems and interior finishes for our office fit outs.
Design Continuity
Cohesive aesthetic vision maintained from base specifications through to final details.
Efficient Project Sequencing
Optimised scheduling that reduces overall project duration.
Transparent Communication
Clear documentation and reporting across all project phases.
Value Engineering
Intelligent cost management without compromising quality or compliance.
London Market Knowledge
Deep understanding of tenant expectations and landlord requirements in the capital.
Trusted by London's Property Leaders
We have successfully delivered integrated Cat A and Cat B projects for prominent London developers and corporate occupiers, establishing environments that satisfy all stakeholders.
Our Comprehensive Fit Out Process
A Structured Approach from Base Build to Occupation
Our methodical process ensures both technical excellence and creative distinction in every Cat A and Cat B project, delivering spaces that function flawlessly while making powerful statements about your property or brand.
1.
Initial Briefing
Establishing project objectives, technical requirements, and design aspirations.
2.
Site Assessment
Comprehensive evaluation of existing conditions and development potential.
3.
Technical Design
Detailed specification of infrastructure systems and architectural elements.
4.
Interior Concept Development
Creation of design schemes that balance aesthetics with functionality.
5.
Phased Implementation
Coordinated delivery of Cat A infrastructure and Cat B finishes.
6.
Commissioning and Handover
Thorough testing, documentation, and client training.
What Our Clients Say
Hear about the services we’ve provided from our clients, and the experience they had whilst working with us.
Recent Cat A & Cat B Projects
Case Studies
Location: Ealing Cross, London
Size: 4,000 sq ft
Project Type: Tenant Fit Out
Duration: 6 Weeks
Location: Kings Cross, London
Size: 5000sqft
Project Type: Tenant Fit Out
Duration: 12 Weeks
Location: Moorgate, London
Size: 3,700 sq ft
Project Type: Tenant Fit Out
Duration: 6 week project
Location: Farringdon, London
Size: 10,000 sq ft split over 5 floors
Project Type: Tenant Fit Out
Duration: 8 week project in 4 phases to accommodate all employees
Location: Clerkenwell, London
Size: 4055 sq ft
Project Type: Tenant Fit Out
Duration: 6 weeks
Location: Piccadilly, London
Size: 7,000 sq ft
Project Type: Landlord Fit Out
Duration: 12 weeks
Expert Cat A & Cat B Fit Out Services in London
Whether you’re a commercial landlord preparing spaces for market or a tenant requiring a complete workspace transformation, Imperial Building Solutions delivers integrated Cat A and Cat B fit out services tailored to your specific objectives.
Our experienced team helps property professionals and businesses across London create technically excellent, aesthetically impressive workplaces that satisfy practical needs while making powerful statements.
Contact us today for an initial consultation on your Cat A and Cat B requirements.
Contact Us Today
Ready to transform your office space? Our London-based team provides fixed-price quotes and guaranteed delivery programmes.
Call us on 020 3375 9075 or email us at enquiries@imperialbuild.co.uk.