Most companies do not move offices because the old premises have run out of function — they move because they dread renovating while a hundred-plus staff are still at their desks. But relocating means operational disruption, the loss of a familiar address and a non-trivial moving cost. In-place renovation, when properly planned, is almost always the lower-risk and lower-cost option. This article lays out the office renovation process step by step, reference cost ranges, and how after-hours construction lets your company keep running with almost no interruption.

When to renovate rather than relocate

Renovation makes sense when: the lease still has a long runway (more than 2–3 years), the location and area still fit, and the building structure is sound but the interior has aged or no longer matches how the company works. Conversely, if the area is already overloaded, the lease is about to expire, or the building cannot meet new infrastructure needs, then moving and building fresh may be cheaper overall.

An increasingly common middle case: the company wants to keep its spot but needs to raise the standard of the space to recruit better and host international clients. In that case, renovation is not merely “making it look nice” but an infrastructure upgrade — a topic we cover in detail in upgrading an office from Grade B to Grade A.

The office renovation process (6 steps)

1. Survey the existing conditions and assess the technical systems

Renovation differs from new-build in that you have to work with what already exists. The first step is a full survey of the floor: whether the mechanical–electrical–plumbing (M&E) systems can carry the new load, the state of the existing ceiling and floor, and which fire-safety (PCCC) configuration has been approved. Skipping this step is the number-one reason renovation costs balloon mid-project — because the hidden items (rotted old pipework, insufficient electrical capacity, uneven floors) only reveal themselves once demolition has begun.

2. Design and produce a BOQ to lock the budget

From the existing conditions and usage needs, the design team develops the new floor plan, then breaks it down into a bill of quantities and cost estimate (BOQ). This is the tool for locking the budget before construction and avoiding vague overruns. At AIC, from a single floor plan we can produce a BOQ estimate within about 4 working hours so a company can gauge the budget early; the price is locked against the agreed BOQ. To understand what line items a fit-out estimate contains, see our fit-out cost guide.

3. Obtain building management approval

Almost every office building has its own fit-out guideline: design documentation must be approved in advance, noisy work hours are limited, and M&E connections and PCCC modifications must follow the building’s exact standards. Submitting documentation late is a common cause of schedule slippage. For FDI companies, bilingual Vietnamese–English documentation for both internal use and building management considerably shortens the approval cycle.

4. Plan construction in phases

This is the crux of renovating an operating office. Rather than shutting the whole floor, the space is divided into zones and built in a rolling sequence: staff move temporarily to the not-yet-worked zone, the crew finishes each part, then rotates. This plan must be agreed with the company in advance regarding seating-move schedules, so nobody has to work right next to an area being drilled or cut.

5. Construction — during or outside office hours?

“Clean”, low-noise items (installing loose furniture, running signal cabling, applying film) can be done during hours in an isolated zone. Dusty, high-noise items (demolition, concrete drilling, tile cutting, solvent painting) should be concentrated outside office hours — evenings or weekends. The next section digs into controlling dust and noise while the company keeps running.

6. Acceptance, handover and warranty

After construction comes item-by-item acceptance, test-running the M&E and air-conditioning, industrial cleaning and handover. AIC projects are handed over with a warranty of up to 24 months and a periodic maintenance schedule — an important point in renovation, because connections into the building’s existing systems need monitoring for a period after they go into use.

Office renovation cost — reference ranges

Office fit-out cost typically ranges from VND 4–12 million/m², depending on the level of finish, materials and the complexity of the technical systems. For renovation, add these specific factors:

  • Demolition of existing conditions: the cost of tearing out, collecting and hauling debris out of the building (usually done after hours, using the goods lift on the building management’s schedule).
  • Handling hidden items: replacing old pipework, reinforcing floors, upgrading electrical capacity — only pinned down precisely after the survey.
  • After-hours construction premium: night and weekend work usually incurs higher labour cost than daytime work.

Treat these as a reference frame for budgeting, not final pricing. The final figure is only accurate after surveying the existing conditions and producing a detailed BOQ. To compare against the cost of leasing space in premium towers, see the list of Grade A offices in HCMC.

After-hours construction: controlling dust and noise while the office runs

Whether renovating an operating office succeeds or fails comes down largely to environmental control. Practical measures usually applied:

  • Floor-to-ceiling temporary partitions between the construction zone and the working zone, using a framed system covered with panels to block dust and dampen noise.
  • Pressure control and dust extraction: industrial vacuum units with filtration at the source; for fine-dust items, create negative pressure inside the construction zone so dust does not escape.
  • Covering and protection: wrap the air-conditioning system and air vents so dust does not enter the ducts; cover finished floors along material-transport routes.
  • Concentrate noisy work after hours: drilling, chiselling and cutting — work that exceeds acceptable working noise — are only carried out outside office hours or at weekends, per building rules.
  • Clean at the end of every shift: clear dust and debris after each session so staff return to a tidy space the next morning.

The goal is for employees to barely notice a project is running right beside them — that is what “renovation with no downtime” really means.

Who should act as the main contractor?

Renovating an operating office involves many interfaces at once: design, interior construction, licensed specialist partners for M&E, air-conditioning (HVAC) and PCCC, and building management. If the client tries to coordinate it all themselves, the biggest risk is a “gap between contractors” — everyone is right about their own scope, but the whole is misaligned.

AIC works to a single-point design-build model: holding the General Contractor plus quality control (GC+QC) role, coordinating with licensed partners for the M&E/HVAC/PCCC scope but pulling all schedule and quality responsibility into one place. With over 10 years in the trade (predecessor Nhan Viet from 2016, AIC established in 2019), 60–100 projects a year, two in-house workshops (1,200 m² and 600 m²) and a client base including 9 FDI companies, we have the capacity to coordinate renovation while an office keeps operating. See more about our office fit-out service.

If your lease is nearing its end or you intend to hand the premises back after renovation, do not overlook the reinstatement obligation — covered in office reinstatement (making good).

Frequently asked questions

Does renovating an office mean shutting down and stopping work?

Not necessarily. With phased (rolling) construction and by concentrating noisy, dusty items outside office hours, staff can keep working normally in the not-yet-worked zone. The key is sensible zoning and agreeing the seating-move schedule before you start.

How much does office renovation cost per square metre?

Fit-out typically runs VND 4–12 million/m² depending on the level of finish, plus the cost of demolishing existing conditions and handling the hidden items specific to renovation. This is a reference range for budgeting; the exact figure only comes after a survey and detailed BOQ.

How long does an office renovation take?

Depending on area and scope, a mid-sized office renovation (300–800 m²) usually takes 2–4 weeks for design and documentation approval, plus 4–8 weeks of construction. Rolling, after-hours construction can extend the schedule compared with concentrated work on an empty floor — in exchange, the business does not have to stop operating.

Do I need building management approval to renovate?

Yes. Almost every office building requires design documentation approval before construction, limits noisy work hours, and controls M&E connections and PCCC modifications to the building’s standards. Preparing complete documentation and submitting it early is the way to avoid schedule slippage.