Commercial Fit-Out Design Process

Designing and delivering a commercial fit-out project requires a seamless blend of creativity, technical expertise, and coordination. From early conceptual sketches to detailed 3D modelling, every stage of the process is immaculately managed to ensure the client is fully aware of the design outcome and that the final workspace is delivered visually and functionally as intended.

Below, we detail how we manage each stage of the design process, from initial concepts to technical integration, and highlight the use of tools such as Revit, P-Con, and 3D walkthroughs, as well as key considerations for space planning, building services, and furniture layout.

1. The Concept and Planning Phase

The project begins with a clear understanding of the client’s business needs, brand identity, and operational requirements. We typically hold several workshops or briefing sessions with our clients to define project goals, design requirements, budget parameters, and key performance criteria.

Conceptual Design and P-Con Sketches

At this stage, our designers will use tools like P-Con to produce conceptual sketches and quick visualisations of layout ideas. These early visuals help communicate spatial flow, zoning, and overall design intent without committing to detailed technical drawings.

2. Space Planning and Technical Coordination

Once a concept is approved, the design moves into space planning, a crucial step that balances aesthetics with compliance, comfort, and technical feasibility.

Key Space Planning Considerations:

• Fire Safety Systems:

We ensure our layouts provide clear egress routes, appropriate fire alarm coverage, and access to extinguishers and detectors. Our designers coordinate closely with fire engineers to ensure compliance with local regulations.

• HVAC Integration:

The integration of Air conditioning units will be assessed, and they will be strategically placed, along with ductwork and diffusers, within ceiling voids and service zones. We will utilise our Revit models to check for clashes between HVAC systems, lighting, and structural elements.

• Natural Light and Fresh Air:

Our designers will create a plan to maximise exposure to natural light. They will position workstations near windows and use glass partitions to help distribute daylight throughout the space. Additionally, we will take fresh air considerations into account, including ventilation rates, operable windows, and the integration of energy-efficient air-handling systems.

• Data and Power Installations:

Data cabling, power points, and floor boxes are planned around workstation layouts to ensure connectivity and future flexibility. Our design team will coordinate with our IT and electrical contractors to ensure these systems are concealed and accessible.

• Lighting Design:

Lighting is carefully layered, combining task, ambient, and feature lighting. Our designers can simulate lighting levels digitally to ensure comfort and energy efficiency, often integrating smart controls or daylight sensors.

• WCs, Kitchens, and Tea Points:

We position these functional spaces for accessibility and efficient plumbing runs. Materials are selected for durability and hygiene, while layouts accommodate both peak usage and aesthetic continuity.

• Desking and Furnishings:

Furniture layouts are modelled in 2D and 3D to verify circulation and ergonomics. Our designers use Revit software to ensure accurate dimensions and realistic visualisations.

3. Digital Design and Visualisation

Revit Modelling, 3D Walkthroughs and Visualisation

Once the spatial design is approved, Revit becomes the backbone of our technical documentation process. Revit usage and operation mean that all plans are modelled in 3D from the outset, and while not artificial intelligence, Interior Options has extensively invested in and developed Autodesk’s Revit Software to create a ‘semi-automatic’ experience.

As we model your installation, our software automatically estimates costs based on the drawn elements, providing precise descriptions and quantifications while clearly defining project scope. 3D visuals, photographic-quality renders, dynamic 360-degree visuals accessible via QR codes or links on mobile devices, and installation ‘fly-throughs’ all emanate from the same file. 

Our innovative approach truly sets us apart in the industry. We can quickly generate initial budgets and collaborate with clients in real time, problem-solving and evolving concepts into striking layouts while tracking cost changes throughout the process. This proactive engagement not only saves invaluable time but also transforms decision-making into an immediate opportunity.

2D Drawings and Documentation

From the Revit model, our designers extract detailed 2D drawings, including plans, elevations, sections, and construction details. These drawings form part of the official tender and construction documentation sets.

4. Technical Review and Compliance

Before construction starts, we will place our designs under technical review and coordinate with all relevant consultants to ensure our designs are fully compliant.

• Fire engineers validate evacuation plans and alarm systems.
• Mechanical and electrical engineers ensure systems meet performance and sustainability standards.
• Acoustic consultants review noise control between areas such as meeting rooms and breakout spaces.

Any revisions required will be made directly within the BIM model, maintaining consistency across all documentation.

5. Handover and As-Built Documentation

Upon project completion, we will manage any updates or modifications made during the fit-out process within the Revit model to create an as-built record. This digital document captures all on-site changes and provides the client with accurate building information, supporting future maintenance and alterations.

As you can see, from early space planning to final commissioning, every decision, whether it’s the placement of a desk or the routing of an air duct, plays a crucial role in creating a workspace that enhances both employee satisfaction and business performance.

At Interior Options, we deliver exceptional commercial design and fit-out projects, drawing on over five decades of experience. Our bespoke software and systems are expertly crafted to strike the perfect balance between creativity and precision. We specialise in visualising, coordinating, and delivering high-performing workplaces that are not only stunning but also safe, compliant, and highly efficient.

The Benefits of Working with Interior Options

We are one of the industry’s most accommodating office interior suppliers, dedicated to helping everyone find exactly what they need, no matter how big or small.

Customers who choose to work with us will find that they receive the big company professionalism that comes with many years of experience, along with the flexibility, excellent service, and value for money that we offer as an SME.

For more information on our services or to book your *FREE design consultation, please contact our friendly team today.

*depending on the location