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How long does an office fit-out project take
Management method

How long does an office fit-out project take

Office fit-out project duration: 12 weeks on average. The Kytom method to frame the schedule, secure delivery and avoid costly delays.

11 cities covered
1 200+ spaces transformed
66 passionate people

"We call you, when will it be delivered"

What our clients tell us.

You will recognise your situation if…

  • The lease starts in 4 months and nothing has been launched
  • Several providers announce inconsistent timelines
  • Internal approvals slow down every major decision
  • The schedule does not distinguish design, works and installation

Issues and impacts

Hidden cost

A one-month delay on 1500 sqm easily represents 35,000 to 55,000 euros of double rent according to CBRE. Add the outgoing landlord's penalties, furniture storage and project teams' overtime. The extra cost reaches 8 to 12% of the initial budget as soon as a critical milestone slips by 3 weeks.

Human risk

According to <a href="https://www.anact.fr/ressources" rel="noopener" target="_blank">ANACT</a>, 41% of employees report a drop in engagement during a poorly managed move. Teams work in transitional premises, without acoustic or ergonomic reference points. Post-project turnover rises by 6 to 9 points when delivery exceeds the internally announced date by 2 months.

Regulatory risk

Minimum conditions are required by regulation as soon as the premises are taken over. A rushed delivery exposes you to non-compliance in fire safety or RGAA accessibility. Obligations linked to the tertiary scheme also require energy supporting documents. A delay in the safety committee pushes the move-in back by an additional 3 to 5 weeks.

How Kytom goes about it

Kytom frames the project duration from the very first meeting, with a costed and binding reverse schedule. Since 2006, our 11 agencies have delivered more than 1200 projects, with an average area of 850 sqm and an average lead time of 12 weeks between signature and handover. From the diagnostic stage, our project managers factor in landlord and co-ownership constraints, the safety committee and furniture lead times (Vitra, Herman Miller and Knoll require 8 to 14 weeks). The schedule is approved jointly with the technical real estate department, the real estate department and the executive, then monitored in weekly meetings. Each critical milestone triggers an alert 10 days before the deadline, which avoids 80% of the slippages observed in the office market.

Our method

  1. 1. Diagnose

    Audit of the existing site, technical survey, flow measurement and user interviews over 2 to 3 weeks. Deliverable: costed framing note, area assumptions, identified landlord constraints, first timeline range between 10 and 18 weeks depending on ambition.

  2. 2. Design

    Detailed programming, technical plans, furniture and finishes choices over 3 to 4 weeks. Deliverable: approved design file, firm quote, day-by-day works schedule, furniture orders triggered to absorb supplier lead times of 8 to 14 weeks.

  3. 3. Execute

    Works across all trades managed by a dedicated site manager, lasting 6 to 10 weeks depending on area. Deliverable: weekly report, snag clearance, safety committee coordination, acoustic and air quality checks compliant with the environmental and health standards in force.

  4. 4. Deliver

    Furniture installation, acoustic calibration, user training and move support over 1 to 2 weeks. Deliverable: delivery report, as-built documentation file, Qualibat warranties, usage plan and post-occupancy review at 90 days.

Cost and ROI

Cost range per sqm
800 to 1500 euros excl. VAT/sqm
Depending on the level of services, technical complexity and the share of signature furniture selected.
Timeline
12 weeks on average
For 850 sqm, excluding long furniture lead times and internal approvals exceeding 15 days.
Typical ROI
Payback in 2 to 3 years
Through reasoned densification, lower turnover and energy savings linked to the tertiary decree (ELAN law art.175), which requires a reduction in energy consumption of 40% by 2030, 50% by 2040 and 60% by 2050 compared with the reference of the 2010s decade (<a href="https://aicvf.org/" rel="nofollow">AICVF</a>).

Anonymized field feedback

"We had 14 weeks before the end of the lease. Kytom kept to the schedule to the week, with a compliant delivery and zero double rent paid to the outgoing landlord."

14 weeks, 0 days late
Schedule met
48,000 euros
Double rent avoided
87% at 90 days
Employee satisfaction

Frequently asked questions

What is the average duration of an office fit-out project?

Allow 12 weeks on average for 850 sqm, from signature to handover. The realistic range extends from 10 to 20 weeks depending on area, technical complexity and the speed of internal approvals on the management side.

Can it be delivered in less than 8 weeks?

Yes, for areas under 400 sqm with standard services and furniture available in stock. Below 6 weeks, the risk of safety non-compliance rises sharply.

What delays a schedule the most?

Three factors dominate: internal approvals exceeding 15 days, signature furniture lead times (8 to 14 weeks at Vitra or Herman Miller), and safety committee timelines that can add 3 to 5 weeks.

Should you move in one go or in phases?

For headcounts above 150 people, phasing in 2 or 3 waves reduces operational disruption by 40%. Below that, a single move over a weekend remains preferable, usually completed in 48 hours.

How do you secure the delivery date?

Require a detailed day-by-day reverse schedule, a firm quote, a furniture order triggered as soon as the design is approved, and weekly meetings. Kytom meets its timelines on 94% of projects delivered since 2018.

What happens if the landlord imposes a hard deadline?

We build the reverse schedule from the deadline and identify the blocking decisions. For 1000 sqm, you ideally need 14 weeks of margin. Below 10 weeks, some premium packages become inaccessible.