🏢
Office Refurbishment Guide · London & South East

Occupied Office Refurbishment: How It Works

Most offices that need refurbishing cannot stop trading for six weeks while it happens. This page explains exactly how phased delivery, noise control, and careful scheduling keep your team operating throughout — no sales pitch, just the process.

The Starting Point

Why businesses refurbish without moving out

The "vacate and refit" model — moving staff to serviced offices while works happen — is increasingly rare among London and South East occupiers. Serviced office costs, business continuity risk, and the operational disruption of an unplanned move mean most businesses now refurbish in occupation. It is not the exception; it is the default. For a broader overview of what the work itself involves, see our commercial office refurbishment service.

The trigger is usually one of four things:

📋

Lease Event

A break clause, renewal, or dilapidations schedule requires the space to be updated to meet landlord or surveyor remedial works standards before the term ends.

👔

Leadership Change

A new director or managing partner requires the space to reflect the company's current positioning — without the cost of relocating the whole business.

📐

Post-Hybrid Reset

The office is still configured for five days a week. The team is in two or three. The layout no longer serves how people actually work, and collaboration space is absent or unused.

📏

Headcount Change

The business has grown or contracted significantly since the space was last fitted out. The floorplate needs restructuring around a different density or departmental layout.

The Process

The four stages of a live-site refurbishment

A live-site refurbishment follows the same four stages regardless of scope. What changes is the time spent in each stage and the complexity of the rotation in stage three. The pre-start site survey is the critical first step — the point at which the programme is agreed, constraints are logged, and both parties understand the exact shape of the project before any work begins.

01

Survey & Plan

We carry out a no-obligation pre-start site survey. This establishes the works scope, identifies fixed constraints (server rooms, reception, plant), and produces the programme and RAMS pack before anything starts.

02

Zoning & Preparation

The floorplate is divided into zones. Temporary hoarding, containment, and acoustic barriers are installed. Deliveries and materials are positioned. Staff are briefed on which areas are affected and when.

03

Phased Execution

Works proceed zone by zone. Noisy and dusty tasks are scheduled around your working day. Each zone is handed back in full working order before the next zone opens. Staff never work in an active construction area.

04

Handover

Containment is removed, the finished space is handed over zone by zone, and snagging is completed with minimum further disruption. A final walk-round confirms everything is complete to specification.

Noise & Dust Control

How we control noise and dust in working offices

Noise and dust are the two practical objections that prevent most facilities managers from progressing a refurbishment. Both are manageable with the right systems — but only if those systems are planned before work starts, not improvised on the day.

Noise on a live commercial site falls into three categories. Airborne noise — voices, radio, general site activity — travels through air and is reduced by sealing the works zone with boarding. Impact noise — drilling, hammer action, fixing into concrete — transmits through structure and is managed primarily through scheduling. Mechanical noise — ventilation, extraction, compressors — is managed through equipment selection and positioning.

Dust containment matters most where there is server infrastructure, sensitive equipment, or open-plan areas with high footfall. HEPA-grade filtration units run throughout the works area. Plastic sheeting is not sufficient for a live office environment — it is not structurally stable, offers no acoustic value, and presents poorly to the rest of your team.

Criteria Plastic Sheeting Modular Acoustic Barriers
Noise reduction Minimal No structural mass to absorb sound Meaningful Panels carry an STC (Sound Transmission Class) rating
Dust containment Inconsistent Gaps, tears, and movement allow passage Sealed Interlocking panels with tape-sealed joints and HEPA extraction
Appearance Poor Looks temporary and unsettling to staff Professional Solid boarding that reads as a managed site
Server room protection Inadequate Not suitable where air quality is critical Appropriate Sealed containment with HEPA filtration as standard
Security None Open to unauthorised access Controlled Fixed boarding with a lockable access point
Programme Management

Scheduling works around your business day

The programme produced before work starts identifies two categories of task: those that can run during the normal working day without material disruption, and those that require a quiet window. The agreed programme — not the site manager's judgement on the day — determines what happens when. You will know before the project starts which days and windows will carry heavier noise.

Materials movement is also planned rather than reactive. Deliveries are scheduled for early morning or late afternoon to avoid congestion in shared lobbies and corridors. For clients where a smaller reactive office works programme runs in parallel, this scheduling discipline applies equally.

Illustrative: How a Typical Day Looks on a Live Site
07:00 – 08:30 Noisy preparatory works (impact drilling, core cutting, structural modifications) before staff arrive Heavy trades
08:30 – 12:00 Quiet trades alongside normal business activity: partitions, ceilings, electrical first fix, flooring Low impact
12:00 – 13:00 Heavier works resume during the lunch period when office occupancy is reduced Heavy trades
13:00 – 17:00 Quiet trades continue: decoration, M&E second fix, joinery, door hardware, punch-list items Low impact
17:00 – 18:30 Clean-down, materials movement and deliveries — corridors and lifts used after staff have left Logistics

This schedule is illustrative. Actual windows are agreed with you as part of the pre-start programme and will reflect your specific business hours and constraints.

Zone Rotation

Phased decanting — how we rotate your team through the works

Phased decanting is the mechanism that allows a full-floor refurbishment to happen without closing the office. The principle is straightforward: divide the floorplate into zones, complete one zone, consolidate staff into the finished zone, open the next zone for works, and repeat until the floor is complete.

At every point in this cycle, your team is working in a normal office. The works zone is sealed behind hoarding. The rotation cycle follows four steps: preparation → execution → rotation → release. The cycle repeats until the final zone is handed back. This approach scales from a single meeting room up to a full multi-floor refurbishment.

Zone Rotation — Illustrative Floorplate
Zone A ✓ Complete — staff in
Zone B ⚙ In progress
Zone C Pending
Handed back In works Not yet started

The programme is agreed before work starts, so your team knows in advance which zone is affected each week. There are no surprises and no ad hoc requests for areas to be vacated at short notice.

Legal & Compliance

Compliance and landlord requirements

Commercial refurbishment in a leased property carries specific legal and contractual obligations. These are not optional — they protect you as tenant, the landlord, and any third parties affected by the works.

Licence to Alter (LTA): Any alteration to a leased commercial property — structural, mechanical, or in many cases cosmetic — requires the landlord's written consent. The LTA records this consent and sets out the conditions under which works can proceed. We prepare this documentation as part of our pre-start process. For clients involved in surveyor remedial works or lease-end negotiations, this documentation also feeds directly into the dilapidations settlement.

CDM 2015: The Construction (Design and Management) Regulations 2015 apply to most commercial refurbishment projects. On a live site, this includes managing the interface between the construction zone and the occupied area — which is a CDM obligation, not just good practice.

Insurance: Public liability and employer's liability insurance certificates form part of the standard pre-start pack we provide to every client.

📋 What Your Contractor Should Provide Before Work Starts on a Live Site
RAMS (Risk Assessments and Method Statements) — site-specific, not generic. Should reference the live office environment explicitly.
LTA technical documentation — drawings, contractor schedule, and specification for submission to your landlord's solicitors.
Public liability insurance certificate — minimum £5m for occupied commercial premises is standard; confirm the limit applies to your building type.
CDM compliance confirmation — construction phase plan appropriate to the project scope and a named principal contractor.
Dust and noise management plan — specifying the containment approach, filtration equipment, and noise scheduling windows.
Emergency egress plan — confirming that fire escape routes remain unobstructed throughout all phases.
Agreed works programme — with named noisy windows, zone rotation schedule, and delivery slots confirmed before work begins.
Ready to Start?

If your office needs refurbishing and your team cannot move out

That is not an obstacle — it is the normal starting point. We carry out a no-obligation site survey across London, Kent, Surrey, and Essex. It takes around an hour, costs nothing, and gives you a clear picture of how the project would be phased around your operations.

Questions & Answers

Common questions about refurbishing a live office

Can you work around our server room?▼
Server rooms are designated as permanent exclusion zones from the outset. Works in adjacent areas are sequenced to minimise vibration transmission, and HEPA-grade dust containment with sealed joints is standard practice wherever IT infrastructure is at risk. If your server room sits within or adjacent to the works zone, we will map the containment approach specifically around it during the pre-start survey.
What happens if there is a noise complaint from our neighbours?▼
Noisy works are scheduled within agreed windows, which are logged in the programme and shared with building management before work starts. If a complaint arises during those windows, we investigate the specific task and assess whether the scheduling can be adjusted. If the complaint falls outside an agreed noisy window, we stop immediately and review.
Do we need to tell our landlord before work starts?▼
Almost certainly yes. Any alteration — structural, mechanical, or in many cases decorative — to a leased commercial space will require a Licence to Alter. The application process varies by landlord and lease terms, but it typically takes four to eight weeks to resolve. We can prepare the technical documentation your solicitor or surveyor needs to submit the application.
How long does a phased refurbishment typically take?▼
It depends on scope and floorplate. A single floor of 3,000–5,000 sq ft refurbished in two or three phases typically takes between eight and fourteen weeks. Adding early morning or weekend shifts can compress the programme. We produce a zone-by-zone programme before work starts so you have a clear reference point — not an estimate that shifts once work begins.
Can you work around an area we can never vacate — like a staffed reception or IT room?▼
Yes. Fixed constraints are mapped at the pre-start survey stage and built into the programme before work begins. Reception, IT rooms, or any business-critical space can remain live throughout. The phased programme is designed around your constraints — not around a theoretical floorplate.
What if the project scope changes once you have started?▼
Scope changes are handled through a formal variation process. Because all trades operate under a single contract managed by Renova, any addition or amendment is assessed, priced, and agreed with you before any additional work proceeds. There is one point of contact and one contractual record.
Further Reading

Related articles from the Renova blog

Service Pages

Explore our refurbishment services