What’s the Typical Timeline for an Office Fit Out?

1. Average timeline
A standard office fit out typically takes 6 to 12 weeks, from initial planning to final handover. This timeframe includes design development, approvals, construction, and snagging. However, the actual duration depends on the size of the space, project complexity, and client decision-making speed.

2. Small offices
For small spaces like startups or compact suites, a fit out can be completed in 4 to 6 weeks. These projects usually involve fewer design elements, faster installations, and less disruption, making it easier to deliver on a shorter schedule.

3. Medium to large offices
Fit outs for mid-sized to large offices often range from 8 to 16 weeks, as they require more extensive planning, layered coordination, and greater attention to detail. These timelines allow for phased works, tech integration, and tailored spatial planning.

4. Custom builds or complex designs
Highly customised or technically complex fit outs may take longer due to the need for bespoke finishes, smart systems, or sustainability features. These projects benefit from early-stage planning and collaborative input to ensure every detail is delivered with precision.

Every project is unique, contact our team to get an accurate timeline based on your space, needs, and design vision. We’ll help you plan with confidence.

Office Size and Complexity Matter

1. Open-plan vs cellular offices
Open-plan layouts are generally faster to deliver, as they require fewer internal partitions and offer greater flexibility during construction. In contrast, cellular offices with multiple enclosed rooms demand more time for framing, electrical routing, and finishes, extending the fit out period.

2. Tech-heavy installations or compliance requirements
Offices that rely heavily on AV systems, server rooms, or smart automation need extra time for specialist installation and testing. Additionally, compliance with health, safety, or accessibility regulations can introduce steps that lengthen the project timeline but are essential for operational approval.

3. Glass partitions vs solid wall builds
Glass partitions offer a modern look and quicker installation but may require precise measurements and specialist fittings. Solid walls, while providing more privacy and sound insulation, typically take longer to construct and finish, especially if they require painting, skimming, or integrated cabling.

How Do Different Fit Out Types Affect the Timeline?

The type of office fit out you choose plays a major role in determining how long the project will take. Each category, whether it’s a basic infrastructure setup or a full-service transformation comes with its scope, processes, and pace.

1. Category A fit out – shell and core
A category A fit out typically involves preparing the core infrastructure of a space; installing lighting, ceilings, raised flooring, HVAC, and basic finishes. These projects are relatively straightforward and can be completed within 4 to 6 weeks, assuming minimal design changes.

2. Category B fit out – final design, branding, furniture
A Category B fit out builds on a completed Cat A space, transforming it into a fully operational office with partitions, branded elements, furniture, tech, and interior styling. This phase is more design-led and can take 6 to 12+ weeks, depending on the level of customisation and client feedback loops.

3. Turnkey fit out – all-in-one service
A turnkey fit out offers a streamlined, end-to-end solution where one provider handles everything from design to delivery. Because of its integrated approach, it can often be delivered more quickly though the timeline still depends on the scope and clarity of the brief provided at the start.

What Phases Make Up the Office Fit Out Process?

1. Consultation & briefing
We begin by meeting with your team to understand your goals, space requirements, and budget. This phase typically takes 1 to 2 weeks, which includes site visits, workspace analysis, and in-depth discussions to create a clear and strategic brief that sets the tone for the entire project.

2. Design & planning
Our design team translates your brief into layout options, mood boards, and technical drawings. This creative and strategic stage usually takes 2 to 4 weeks, we collaborate closely with you to refine the concept, ensuring every detail from workflow to brand expression is considered before moving into construction planning.

3. Approvals & permits
If your project requires landlord approvals, building control, or local authority permissions, we handle the process on your behalf. Our team ensures all documentation is submitted accurately and efficiently to keep your project on schedule. This step can vary depending on your location and lease but generally takes 1 to 3 weeks.

4. Construction & fit out
This is where your vision takes shape. From partitioning and flooring to lighting, technology, and furniture installation, we manage the entire build phase with precision. Depending on the size and complexity of your project, this stage can take anywhere from 4 to 12+ weeks, with our experienced project managers coordinating trades, timelines, and quality control to deliver a seamless experience.

5. Testing & handover
Before we hand over the keys, this handover phase typically takes 1 week, which includes full snagging, system testing, and final inspections to ensure everything works perfectly. You’ll receive a fully operational, clean, and ready-to-use space delivered on time and to spec.

What Causes Delays in Office Fit Out Projects?

While we always aim for timely delivery, certain factors can impact the project schedule. At Kova Interiors, we proactively identify and manage these risks, but understanding what can go wrong helps everyone stay prepared and responsive.

1. Incomplete initial brief
A vague or evolving project brief can lead to design revisions, cost changes, and scheduling setbacks. When objectives, space requirements, or budgets aren’t clearly defined upfront, it often results in avoidable delays during later phases.

2. Changes during construction
Mid-project changes, whether to layout, finishes, or tech specifications can disrupt workflow and push back timelines. Even small adjustments may require re-approvals, new materials, or rework, which is why we emphasise design clarity before the build begins.

3. Long lead times on materials
Certain items like custom glass partitions, imported finishes, or bespoke furniture may require longer manufacturing or delivery times. Without early procurement planning, these can stall progress. We mitigate this by sourcing and ordering critical items well in advance.

4. Access restrictions
In shared buildings or multi-tenant sites, limited working hours, noise restrictions, or lift access rules can slow down progress. We coordinate closely with building management to navigate these constraints and schedule works around them.

5. Poor coordination between trades
Delays can arise when subcontractors aren’t aligned on timelines or dependencies. Our experienced project managers ensure that all trades; electricians, joiners, and decorators are synchronised and accountable, reducing downtime and ensuring smooth execution.

Want Your Fit Out Completed on Time? Here’s How.

1. Start with a clear project brief
A detailed, well-thought-out brief is the foundation of a smooth fit out. Clearly defining your goals, space needs, budget, and timeline upfront allows our team to create accurate plans, anticipate risks, and reduce the chance of costly revisions later.

2. Work with experienced fit out contractors
Choosing an experienced partner means benefiting from proven processes, strong supplier networks, and hands-on project management. We’ve delivered over 250 projects across London, so we know how to keep things moving even when challenges arise.

3. Avoid major design changes mid-project
While adjustments can be made, large changes after work begins can create ripple effects across schedules and budgets. We help finalise all designs before construction so you’re confident in the plan and the timeline stays intact.

4. Choose readily available materials
Opting for materials with shorter lead times like standardised furniture or locally sourced finishes helps prevent unnecessary waiting. We’ll guide you toward smart, stylish choices that align with both your vision and your deadline.

5. Maintain regular site meetings
Weekly or bi-weekly site meetings ensure transparency and allow any issues to be resolved quickly. Our project managers keep all stakeholders aligned, providing updates, progress reports, and rapid responses to keep momentum strong.

Explore: Office Fit Out Services 

How Do You Estimate Time Taken for Your Office Fit Out?

1. Book a site survey
A professional site survey is the first step in understanding the scope of your project. It allows specialists to assess existing conditions, potential access challenges, and technical constraints that could affect the duration of your fit out.

2. Get a tailored quote with timeline
Once the survey is complete and your brief is clear, you’ll receive a proposal that outlines costs, phases, and a realistic timeline. This quote reflects the specifics of your space and goals, rather than relying on generic time estimates.

3. Discuss design complexity, custom needs, and building regulations
Timelines can vary significantly based on design features, bespoke elements, and any planning permissions required. Open conversations about these factors early on ensure expectations are aligned and prevent surprises mid-project.

FAQs

1. Can office fit outs happen outside regular business hours?
Yes. Many fit outs are scheduled during evenings or weekends to minimise disruption.

2. Do I need planning permission for an office fit out?
Not always. It depends on the scope. Interior changes usually don’t, but structural work might.

3. Can we occupy the space during a fit out?
It’s possible for phased projects, but for safety and efficiency, vacating the space is recommended.

4. Is there a best time of year for office fit outs?
Many businesses prefer quieter periods like summer holidays or end-of-year breaks.

5. How far in advance should I start planning an office fit out?
Begin planning 3–6 months ahead to allow time for design, approvals, and scheduling.