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Interior Design
for Contractors
We Help Contractors Deliver Better Projects
At Harp Design, we understand that delivering a successful commercial fit-out is about far more than construction. Great projects begin with clear design intent, coordinated technical information and a team that understands how buildings are put together.
We work alongside commercial contractors across the UK, providing interior design, technical drawing packages and Principal Designer services that help projects run smoothly from concept through to completion.
Whether you're delivering an office fit-out, hospitality refurbishment, retail project or commercial redevelopment, we become an extension of your team, ensuring the design is practical, buildable and aligned with your programme.
Supporting Contractors from Design to Completion
Every contractor has experienced the frustration of incomplete information, late design changes or specifications that simply don't work on site.
Our role is to remove those risks before construction begins.
We provide coordinated design information that enables contractors to price accurately, minimise variations and deliver projects efficiently.
Our experience working with contractors means we understand construction sequencing, procurement, compliance and programme pressures, allowing us to produce documentation that works in the real world.
Our Services for Contractors
Commercial Interior Design
We create commercially focused interiors that balance aesthetics, functionality and operational efficiency.
Technical Drawing Packages
Our technical information is produced to support construction, including:
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General Arrangement Drawings
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Interior Elevations
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Joinery Drawings
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Reflected Ceiling Plans
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Flooring Layouts
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Finishes Schedules
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Furniture Layouts
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FF&E Specifications
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Lighting & Electrical Coordination
Principal Designer Services
We can act as both:
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Principal Designer (CDM)
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Building Regulations Principal Designer
Helping contractors manage design risk and meet statutory duties throughout the project.
Space Planning
Efficient layouts that maximise operational performance while meeting accessibility and Building Regulations requirements.
FF&E Specification
Furniture, fixtures and equipment selected with durability, budget, lead times and commercial use firmly in mind.
Project Support
We continue supporting projects throughout construction with:
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Site inspections
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Contractor coordination
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Design clarification
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Client presentations
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Design updates
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Snagging support
We Support Projects Including
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Office Fit-Outs (Category A & Category B)
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Commercial Refurbishments
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Restaurants & Hospitality
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Retail & Shopfitting
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Healthcare
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Education
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Leisure & Visitor Attractions
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High-Rise Residential Communal Areas
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Mixed-Use Developments
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Heritage Buildings
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Listed Properties
Why Contractors Choose Harp Design...
Practical Design
Our drawings are developed with construction in mind, making them practical to price, procure and build.
Commercial Understanding
We understand budgets, value engineering and programme constraints without compromising the design vision.
Technical Accuracy
Detailed, coordinated drawing packages reduce queries and minimise costly site changes.
Construction Experience
With over 20 years' experience delivering commercial interior projects, we understand how contractors operate and what information they need.
Flexible Support
Whether you require assistance with a single drawing package or a complete design service, we can tailor our support to suit your project.
Working With Your Team
We regularly collaborate with:
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Principal Contractors
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Fit-Out Contractors
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Shopfitters
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Project Managers
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Quantity Surveyors
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Architects
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Building Surveyors
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M&E Consultants
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Developers
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Landlords
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Managing Agents
Our collaborative approach ensures the design integrates seamlessly with the wider project team, reducing risk and helping deliver successful outcomes.
Nationwide Commercial Interior Design Support
Based in Essex, Harp Design works with contractors throughout London, the South East and across the UK, providing commercial interior design, technical design packages and Principal Designer services for projects of all sizes.
Whether you need support at concept stage or require technical coordination during construction, we're here to help.
Looking for a Reliable Design Partner?
If you're a contractor looking for practical, commercially focused interior design support, we'd love to hear about your project.
Get in touch today to discuss how Harp Design can help your next commercial fit-out or refurbishment project.
Other services / links ...
Building Regulations Principal Designer
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Commercial Interior Designers in the UK
Why Work with Harp Design Ltd?
Harp Design Ltd is a UK-based commercial interior design studio specialising in hospitality, workplace, leisure, and healthcare interiors. We design spaces that are not only visually strong but also practical, compliant, and commercially viable.
Specialists in Commercial Interior Design
Unlike generalist design studios, Harp Design works exclusively within the commercial sector. This means we understand the operational, safety, and regulatory requirements that come with designing spaces for staff, customers, and the public.
Our commercial interior design services are tailored to businesses that need environments which perform — from restaurants and hotels to offices, gyms, clinics, and public-facing venues.
End-to-End Interior Design Services
We provide a complete commercial interior design service, including:
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Interior architecture
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Space planning and layouts
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FF&E (furniture, fixtures and equipment)
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Technical design packages
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CDM-aware and regulation-led design
This joined-up approach reduces risk, improves coordination, and helps projects move smoothly from concept through to construction.
Every Harp Design project is rooted in how a space is actually used. We design interiors that:
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Improve customer experience
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Support staff workflows
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Maximise space efficiency
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Deliver long-term value
Our designs are not trend-led for the sake of it — they are thoughtful, durable, and commercially informed.
CDM and Building Regulations Knowledge
Harp Design has a strong understanding of UK CDM regulations and Building Safety requirements, designing spaces that prioritise health, safety, and compliance from the outset. This protects clients, contractors, and end users throughout the life of the project.
Sustainable Commercial Interiors
Sustainability is integrated into our interior design process. We consider material longevity, environmental impact, maintenance, and lifecycle costs to create commercial spaces that are responsible as well as refined.
A Collaborative, Straight-Talking Design Studio
Clients work directly with experienced designers — not account managers. We communicate clearly, manage expectations, and give honest advice, helping clients make confident decisions at every stage.
Why Choose Harp Design Ltd
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UK-based commercial interior design specialists
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Experience across hospitality, workplace, leisure, and healthcare
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CDM-aware and regulation-led design approach
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Practical, operationally focused interiors
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Sustainable, long-term design thinking
If you’re looking for a commercial interior designer in the UK who understands how businesses operate — not just how spaces look — Harp Design Ltd delivers design that works.