Office Fit-Out Brentford

Office fit-out in Brentford serves businesses taking, renewing or reshaping office space in TW8. The space may be a floor above a shop, a suite in a mixed-use block near Brentford station or space in a larger building. The work is the inside of the office: strip-out, partitions, ceilings, lighting, small power, tea points and WCs, built to the landlord's licence and to building regulations for non-domestic work. Hounslow's Article 4 direction on Class MA forms the background to the office stock.

For Brentford, the construction part of an office fit-out is published at £70 to £120 per sq ft as a UK guide, and an all-in London office fit-out at £148 to £359 per sq ft (Oktra and Cushman and Wakefield, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Brentford: we build the office partitions, ceilings, lighting and finishes as one contract and coordinate the IT supplier and specialist trades around them.

What office space in Brentford means for a fit-out

Office space in Brentford can range from a floor above a shop to a suite in a mixed-use block or a larger building on a main road, so there is no single office type to plan for. The London Plan names Croydon town centre, not Brentford, as the strategic outer London office location. The work here is fitting out individual floors and suites, each with its own landlord, lease and shared services to work around. Before pricing, we look at what the building already provides: the ceiling grid, the heating and cooling, the fire alarm and the WCs.

Two plain terms help when reading an office lease. Cat A is the landlord's base: an open floor, raised floor or trunking, a suspended ceiling, lighting, heating and cooling, and working WCs. Cat B is the occupier's layout on top: meeting rooms, glazed screens, a tea point, reception, data outlets and finishes. In a smaller suite the line between the two is often blurred, so we list what the landlord has left and what the lease requires before pricing the rest.

Hounslow's Class MA Article 4 as background for Brentford offices

Hounslow's confirmed Article 4 direction removes the Class MA right to change commercial, business and service use to homes. It applies to town centres, large and small neighbourhood centres, strategic and locally significant industrial sites and key existing office locations, and came into force on 22 April 2025. Class MA would otherwise let a building used in Class E for two years become dwellings through prior approval. In Brentford, that means an office floor in a covered location cannot switch to flats by that route, and any change of use would need a full planning application.

For an office tenant this is context rather than a hurdle. The direction bears on the building owner, and it does not change what you can do inside your own suite. It matters to you in one way: a landlord in a covered location has no quick residential route for the floor, which can bear on how the landlord approaches a renewal or a break. Your solicitor reads the lease, and we price the fit-out to its length so the spend matches the term.

Building regulations and CDM for a Brentford office fit-out

An office fit-out in Brentford is non-domestic building work, and where partitions, escape routes or services change, building regulations approval comes first. Hounslow's Table F charges alterations, fit-outs and installations not described in its other tables according to the estimated cost of works. A building notice cannot be used where the fire safety order applies, as it does to offices, so the route is full plans. The usual items are Part B fire and means of escape, Part M access to toilets and doors, and Part L for lighting and services.

An office occupier is a commercial client under the CDM Regulations, so the business has duties of its own: appointing competent people, allowing enough time, and making sure welfare and a construction phase plan are in place. We act as the contractor for the works and prepare the plan. New partitions must not lengthen escape routes beyond the fire strategy, glazed screens need manifestation, and the fire alarm and emergency lighting are extended and recommissioned to suit the new layout.

Working in an occupied Brentford building and leaving the lease

An office floor in a shared Brentford building has neighbours above, below or beside it, so noisy work is timed around them and around Hounslow's limits. Hounslow permits noisy building work from 8am to 6pm on weekdays and 8am to 1pm on Saturdays. Where the landlord wants drilling and cutting kept out of business hours, contractors can apply for Section 61 consent to work at specific times under agreed conditions. We agree the noisy periods with the building manager and protect the lifts and common parts.

At the end of a lease, the same fit-out is often taken back out. Dilapidations and reinstatement clauses can require the tenant to return the space to its original condition, removing partitions, restoring the ceiling grid and making good the floor and walls. We price reinstatement from the licence drawings at the start, so a Brentford tenant knows what leaving a layout involves before building it, and can choose partitions that come out cleanly.

• Office carpet tiles and sheet vinyl in tea points and WCs
• Data containment laid for your IT supplier to cable
• Quiet work after hours in occupied offices, noisy work within the council's hours

VOA Council Tax stock of properties, March 2025, for Brentford Central, Brentford West & Osterley Park and Brentford East. Counts rounded by the VOA.

Work in Brentford rarely sits on its own, so you may also want commercial fit-out in Brentford, office fit-out across Hounslow, what a main building contractor does, what a snagging list covers, how we handle office fit-out across London and Choosing a Builder.

The GS Renovation Difference in Brentford

An office fit-out has to open on the date your lease and your team need, so the programme leads everything. We price the strip-out, partitions, ceilings, services and finishes as one job after seeing the space, and coordinate data cabling with your IT supplier rather than guessing at it. We work to the drawings approved under the landlord's licence and building regulations, agree noisy periods with the building manager, and hand over the certificates and records your landlord will ask for at completion.

• Full plans building control coordinated for the new office layout from the outset
• Registered in England, Companies House no. 14611254
• Fire alarm, emergency lighting and air conditioning specialists on one programme

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254).