Office Fit-Out Sidcup
Office fit-outs for small and medium office suites in Sidcup, partitions, ceilings, lighting and small power for your office, with the IT and specialist trades coordinated.
- Rated 4.9 from 31 reviews on MyBuilder
- UK guide: £70 to £120 per sq ft
- Free site survey, itemised quote
Office fit-out in Sidcup is small-scale work, and it is fair to say so. Sidcup is a District Centre in the Bexley Local Plan, not an office district, and the office work that arises here is in floors above High Street shops, small suites near Sidcup station and professional rooms for accountants, solicitors and agents. We strip out, partition, light and finish those spaces so a business can move in on a fixed date.
For Sidcup, 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 Sidcup: we build the office partitions, ceilings, lighting and finishes as one contract and coordinate the IT supplier and specialist trades around them.
Price guide
| Work | Indicative range |
|---|---|
| Office fit-out, construction only | £70 to £120 per sq ft |
| London office fit-out, all-in | £148 to £359 per sq ft |
| Metal stud partition, boarded both sides | £55 to £65 per m² |
| Suspended ceiling, grid and tile | £22 to £35 per m² |
| Dilapidations at lease end | £15 to £20 per sq ft |
Indicative ranges from published cost guides (Cushman and Wakefield, Oktra and Checkatrade, 2026), not a quotation. Most are UK-wide figures and London work usually costs more; a row marked London is a London figure. Prices checked September 2026.
Quick estimate from UK guide figures
Guide range: choose above

What office space in Sidcup actually looks like
The Bexley Local Plan names Bexleyheath as the borough's Major Centre and Sidcup and Welling among its District Centres, and designates Sidcup Station as a new Local Centre. At London level, Policy E1 names Croydon town centre as the strategic outer London office location. So the office work to expect in Sidcup is a first or second floor over a shop, a converted house used as professional rooms, or a small suite near the station.
That shapes the fit-out. Access is often by a single street door and a narrow stair, so partitions, ceiling grid and furniture arrive in small loads. Services are shared with the shop below, so power, water and drainage routes need checking before the layout is fixed. Heating and cooling are usually local units rather than a central plant. We survey a Sidcup suite with those limits in mind before your designer draws the plan, so the layout suits the building you are actually taking.
Cat A and Cat B fit-out for a Sidcup office
Cat A is the landlord's shell made usable, and Cat B is what makes it your office. In a Sidcup suite, Cat A normally means a suspended ceiling, lighting, heating, small power at the perimeter, finished walls and a floor ready for carpet. Cat B adds your partitions and glazed screens, meeting rooms, a tea point or kitchenette, data and power to the desks, signage inside the office and the finishes your business wants clients to see.
Some small Sidcup offices are let with neither, as a stripped floor. Then the fit-out covers both stages in one programme: strip-out, partitions, ceiling, lighting, power, WCs, tea point and decoration. We coordinate the data cabling with your IT supplier so the containment is in before the ceiling closes. Where the lease requires it, we also keep a record of what was installed, because the dilapidations schedule at the end of the term will ask what has to come out.
Building control and fire safety for a Sidcup office
An office fit-out in Sidcup that alters escape routes, adds WCs or showers, or touches the structure is building work, even inside an existing building. Offices are covered by the Fire Safety Order, so a building notice cannot be used: the route is full plans or a registered building control approver. Bexley formally checks full plans submissions and issues a decision within five to eight weeks, so that period belongs in the programme before the strip-out starts.
Part B governs the escape route down that single stair: fire-resisting partitions and doors, emergency lighting and signage. Part M covers access and WCs, and Part L covers new lighting and controls. Where a new opening needs a steel, a Bexley full plans application generally needs structural calculations, which come from a structural engineer. Bexley building control must be notified at least 48 hours before work starts, and a registered electrician certifies the electrical installation.
Offices becoming homes in Sidcup, and why it matters to tenants
Nationally, Class MA of the permitted development order allows a building in Class E, covering commercial, business and service uses, to change to a home subject to prior approval, once it has been in Class E use for two years. Bexley's Article 4 Direction removing that right inside its designated town centres came into force on 10 December 2025. For a business taking a Sidcup office inside the town centre boundary, that means the floor is less likely to be lost to flats during a short lease.
A second Bexley direction, in force from 8 January 2025, covers selected buildings in the borough's designated industrial areas, as mapped. Neither changes how your office is fitted out. They matter because they set how secure the Sidcup office stock is, which is worth weighing before you spend on a Cat B fit-out in a building the landlord might prefer to convert. Your agent can confirm which side of the boundary the building sits on.
- Decoration and making good to a move-in standard
- Office carpet tiles and sheet vinyl in tea points and WCs
- Cat B office layouts built onto a landlord's Cat A floor
VOA Council Tax stock of properties, March 2025, for Sidcup West, Sidcup East, Lamorbey and Foots Cray Meadows. Counts rounded by the VOA.
Trusted Office Fit-Out in Sidcup
A business pays rent from the day the lease starts, so an office fit-out needs a fixed programme and one contractor running the trades. We visit the suite, work from the layout you or your designer supply, and give a written quotation and programme with the handover date set. As a commercial client you have duties of your own under the CDM Regulations, and we explain them at the start. The founder has more than three decades of hands-on building experience.
- Full plans building control coordinated for the new office layout from the outset
- Data cable routes agreed with your IT supplier before partitions are boarded
- Honest updates if a date or a detail has to move
Giorgio is an excellent and intelligent workman, and with very reasonable prices! He installed a kitchen extractor fan in a complicated situation…
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great…
George was very friendly and helpful from start to finish. He worked really hard to ensure our kitchen was installed to a high standard and was…
FAQ
Frequently Asked Questions about Office Fit-Out Sidcup
What should a business budget for an office fit-out in Sidcup?
Treat the UK guide of £70 to £120 per square foot for the construction work (Oktra, 2026) as a floor; London all-in figures run £148 to £359 per square foot (Cushman and Wakefield, 2026). Add the landlord's fees for the licence for alterations, any dilapidations at lease end, and your IT and furniture, which sit outside the building work. A Sidcup quote follows a survey of the space.
Is Sidcup a place to find office space, or mainly shops?
Mainly shops and services, with offices above and around them. The Bexley Local Plan names Sidcup among its District Centres, below Bexleyheath as the Major Centre, and designates Sidcup Station as a new Local Centre. The office space that exists is small suites and upper floors, and our fit-out work here is sized to match.
How long does Bexley take to approve full plans for a Sidcup office fit-out?
Bexley formally checks full plans submissions and issues a decision within five to eight weeks in respect of Building Regulation compliance. Plan for that before the strip-out starts. The application generally needs a construction specification and, where applicable, structural calculations, which the designer and a structural engineer prepare.
Can a Sidcup office fit-out go ahead on a building notice?
No, for an office it cannot. Premises covered by the Fire Safety Order must use full plans or a registered building control approver. A Bexley building notice also carries no formal approval of the plans, which is another reason the full plans route gives more certainty on escape and fire separation before the partitions go up.
What is the difference between Cat A and Cat B fit-out?
Cat A delivers a usable shell: ceiling, lighting, heating, perimeter power and finished walls and floors. Cat B fits it out for one tenant, with partitions, meeting rooms, a tea point, desk power and data, and the finishes. On a small office both stages are often done together by one contractor, which saves stripping out Cat A items that the Cat B layout would move.
Can we fit out a Sidcup office outside working hours?
Yes, where the landlord allows it and the neighbours are considered. Bexley's normal construction hours are 8am to 6pm on weekdays and 8am to 1pm on Saturday. Noisy work outside those hours should be covered by Section 61 prior consent, and Bexley counts its 28 day response period from the date the application is received, so apply early.
Does the office fit-out need the landlord's consent?
Almost always. Commercial leases normally require a licence for alterations before partitions, ceilings or services are changed, and the landlord may want to see drawings and a method statement. We supply the programme and method statement the landlord asks for. The lease also sets what you must remove at the end, so we record what goes in.
Will a Sidcup office tenant be in the Business Improvement District?
Possibly. Sidcup has a Business Improvement District that raises funds from local businesses, and occupiers inside its boundary usually pay a levy with their business rates. Ask the landlord or agent whether the building is inside it. It does not change the fit-out, but it is a running cost to plan for.
What happens to our Sidcup office fit-out at the end of the lease?
The lease decides. Many leases require reinstatement to the original condition, which means removing partitions, making good ceilings and taking out cabling. Keeping drawings and a record of what was installed makes the dilapidations schedule easier to agree. We can price the strip-out and reinstatement when you leave, as well as the original fit-out.
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