If you are looking to split an open plan office into meeting rooms or private workspaces, the good news is that planning permission is rarely the hurdle people expect. The rules that actually catch businesses out sit elsewhere, mainly in building regulations, fire safety and landlord consent. Here is what applies in practice, based on the fit-out work we carry out across Devon and the South West.
Internal alterations to a commercial building, including stud or glazed partitions, do not normally need planning permission. Planning law is concerned with the external appearance of a building and its use, not the internal layout. So long as you are not changing the use class of the premises, extending the building or altering the outside, you can generally partition an office without applying to your local planning authority.
There are exceptions worth checking before any work starts. If the building is listed, listed building consent is needed for internal alterations, and that applies to plenty of older commercial stock in Devon towns. If your partitioning is part of a wider change, for example converting office space to a different use, the picture changes and it is worth a conversation with the council's planning department first. In our area that is Mid Devon District Council, and a pre-application enquiry typically costs less than getting it wrong.
This is where most office partitioning projects have real obligations. Building regulations cover fire safety, means of escape, ventilation, lighting and acoustics, and new partitions affect all of them. Add a wall and you may have created a room with no natural ventilation, blocked an escape route or changed the fire strategy of the floor.
For most partition work you will either notify building control directly or, more commonly, the work is designed to comply and signed off as part of the fit-out. A competent drylining contractor will build partitions to the fire resistance the layout demands, typically 30 or 60 minutes for walls forming escape corridors, using the correct plasterboard specification rather than standard board. Doors onto escape routes need to be fire rated with the right closers and signage.
If you lease your premises, your lease almost certainly requires the landlord's written consent for alterations, usually through a licence to alter. Skipping this step is one of the most common and expensive mistakes we see. The landlord can require you to remove the partitions at the end of the lease, and unapproved work can complicate dilapidations negotiations badly.
Getting a licence to alter typically takes four to eight weeks, so build it into your programme. Landlords will usually want drawings, a specification and confirmation that building regulations are being dealt with. A decent contractor will provide these as standard, and demountable partition systems are often looked on more favourably because they are easier to strip out.
Costs depend heavily on specification. A basic plasterboard stud partition, taped, jointed and decorated, typically runs from around 70 to 110 pounds per square metre. Add acoustic insulation and fire-rated board and you are more likely in the 100 to 150 pound range. Glazed partitions, popular for meeting rooms because they keep light moving through the floor, generally start around 250 pounds per square metre and rise with framing style and acoustic performance.
Beyond the walls themselves, budget for the knock-on works: extending or reconfiguring lighting, power, data, heating and any fire alarm coverage into the new rooms. On a typical small office reconfiguration these can add 30 to 50 percent to the partition cost, which is why a fixed quote from a contractor who has surveyed the space beats a square metre rate every time.
No, a glazed partition is an internal alteration just like a stud wall, so planning permission is not normally needed. Building regulations still apply, and glazing in partitions must be safety glass with manifestation markings so people can see it.
Legal responsibility sits with the building owner or occupier commissioning the work, so it is worth choosing a contractor who designs to comply and can evidence it. Ask for the board specifications and fire door certificates before sign-off.
A straightforward job, such as creating two meeting rooms in an open plan floor, usually takes one to two weeks on site including decoration. Lead times for glazed systems and the landlord consent process often take longer than the building work itself.
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