Frequently Asked Questions
In most cases, no. The majority of our garden room bars are designed to fall within standard permitted development rules (under 2.5 metres in overall height when placed close to a boundary), meaning you won't need formal planning permission.
However, if you plan to build a larger structure, add a high pitched roof, or live in a conservation area or listed property, we can assist with securing planning approval or a Lawful Development Certificate.
Absolutely. A fully functional garden pub often needs running water and drainage for handwashing, rinsing glasses, and operating wet bars or ice machines. During the design stage, we can integrate complete plumbing layouts and connect your garden bar directly to your mains water supply and waste system.
Because a garden bar typically runs high-draw equipment, such as commercial beer fridges, draft dispense systems, big-screen TVs, surround sound, and ambient lighting, we supply a heavy-duty, dedicated consumer unit as part of your electrical package. Our team works with you to design a custom electrical plan to ensure you have plenty of double sockets, LED downlights, and exterior feature lighting exactly where you need them.
Yes, our garden bars are built for year-round entertaining. Constructed using high-density wall insulation, double-glazed windows and doors, and solid timber framing, they retain heat effortlessly in winter and stay cool during summer. We can also pre-wire wall heaters or install air conditioning isolators so you can enjoy draft beer in absolute comfort, no matter the weather.
We offer flexible options to suit your vision! Our skilled carpenters can build a custom, bespoke wooden bar counter integrated directly into your build, complete with custom shelving, LED backlighting, and under-counter fridge recesses. Alternatively, if you prefer to source a vintage pub bar, install a commercial draft system, or bring in your own furniture, we can deliver a fully finished, plastered space ready for your custom fit-out.
To maximise your entertaining space in summer, we offer Aluminium or uPVC bi-fold doors, sliding doors, and French doors that open up completely onto your patio or garden decking. We can also design integrated bar hatch windows, allowing you to serve drinks directly to guests sitting outside on the deck.
The total cost depends on your chosen dimensions, cladding materials, glazing choices, and electrical/plumbing options. To give you an accurate price, we offer a free-of-charge, no-obligation site survey. Our team will assess your site access, discuss your design ideas, and provide a detailed, itemised quotation with no hidden surprises.
Our partnered electrician can provide a quote to connect your annexe to your home's mains supply and run a data cable for direct internet access, or you can arrange this independently. Please note that the mains electrical connection must be completed before building control can officially sign off the build.
Yes, all annexes include approximately 500mm of front decking as standard, matching your chosen cladding:
- Timber Clad: Supplied with pressure-treated (tanalised) timber decking.
- Composite Clad: Supplied with standard composite decking (in stone grey or dark charcoal).
- Upgrade: Premium Yellow Balau tropical hardwood is available, along with options for additional wrap-around decking.
Yes. London Timber Buildings handles the full installation, including the fitted kitchen, modern shower room fittings, water heating system, internal plaster finish, and all agreed finishing touches prior to final building control sign-off.
We offer two primary roof styles to suit your aesthetic preferences and planning requirements:
- Apex Roof: A traditional dual-pitched roof that offers extra internal headroom and classic architectural appeal.
- Pent Roof: A single-slope, modern roof design ideal for a sleek, contemporary finish and low-profile building height.
Both options are engineered for full weather resistance, high thermal efficiency, and long-term structural durability.
Absolutely. You have full freedom to choose the quantity, style, colour, and positioning of all doors and windows. We offer both uPVC and premium Aluminium glazing options, including French doors, bi-folds, and sleek sliding systems in a wide spectrum of colours and finishes to match your property.
We supply a variety of low-maintenance and natural cladding finishes designed to protect your annexe from the UK climate:
- Thermowood: Heat-treated, highly durable timber with a rich, natural wood finish.
- Composite Cladding: Eco-friendly, recycled wood-polymer cladding available in multiple modern colours (such as charcoal and stone grey) that requires virtually zero maintenance.
- Cedral Fibre Cement: Premium, fire-resistant, and weather-proof cladding available in an array of factory-applied colours.
Every pre-wired annexe leaves our factory equipped with a full standard electrical setup, including:
- 7x double plug sockets (white finish as standard)
- 12x internal chrome downlights
- 2x exterior wall lights
- Dedicated consumer unit and pre-wiring for kitchen appliances, shower room, water heater, and extractor fan.
Additional sockets, switches, or custom finishes (such as brushed steel or black) can easily be added to your plan during the design consultation.
Yes. To ensure year-round comfort, our standard electrical package includes 2 electric wall heaters, as well as pre-wired connections for a bathroom heated towel rail and water heater.
If you would like year-round climate control with air conditioning, we can pre-install an AC isolator switch for £60 or put you directly in touch with our trusted HVAC partner to install a complete split heating and cooling system.
Yes, absolutely. Our garden offices are built to full residential standards, featuring thick thermal insulation in the floor, walls, and ceiling, along with high-specification double glazing. Combined with a standard electric wall heater or an optional air conditioning/climate control unit, your office will remain cosy in winter and cool throughout the summer.
Power is supplied via an armoured cable connected from your main home to the garden office's dedicated consumer unit. For reliable, uninterrupted internet, essential for video calls, large file uploads, and streaming, we can install a hardwired Cat6 data cable alongside the power cable, or set up a dedicated Wi-Fi point.
In most cases, no. The majority of our garden offices fall under Permitted Development rules (single-storey structures under 2.5m overall height when placed within 2m of a boundary). However, if your property is listed, located in a conservation area, or requires a higher pitched roof, we can assist with securing formal planning approval or a Lawful Development Certificate.
Yes. The structural timber framework, high-density wall insulation, and double-glazed doors and windows provide excellent natural acoustic insulation. If you require extra noise reduction (for podcasts, audio recording, or confidential phone calls), we can install acoustic plasterboard and specialised sound-deadening insulation.
Yes! We can design your garden office layout to include a compact ensuite toilet, hand basin, or small kitchenette. During the design and groundwork phase, our team will plan the necessary plumbing and mains water/waste connections so your office is entirely self-contained.
Because much of the structure is precision-engineered, on-site construction for a standard garden office typically takes just 3 to 7 working days. This keeps garden disruption to a absolute minimum compared to building a traditional home extension.
Natural daylight is essential for accurate color work and inspiration. We design garden art studios with flexible glazing options, including floor-to-ceiling glass panels, wide bi-fold or sliding doors, top-hung transom windows, and optional roof lights/skylights to flood your creative workspace with consistent, glare-free light throughout the day.
Yes. Canvases, paints, clay, papers, and wooden frames are sensitive to dampness and extreme temperature shifts. Our garden room art studios feature full thermal insulation (in the floor, walls, and roof) alongside double glazing to maintain a stable ambient environment. Adding a wall heater or an integrated air conditioning/dehumidifier unit ensures your materials and finished artwork stay completely protected year-round.
Absolutely. Having running water on-site is a game-changer for cleaning brushes, washing palettes, or mixing clays without walking back and forth to the main house. We can integrate internal plumbing layouts and handle the necessary mains water supply and waste connections during the groundwork stage.
Proper airflow is critical if you work with solvents, oil paints, resin, varnish, or kilns. In addition to high-level opening windows and trickle vents for natural cross-ventilation, we can pre-wire heavy-duty mechanical extractor fans or specialised wall vents to safely pull fumes and airborne dust out of your studio.
Art studios need durable, easy-to-clean floors that can withstand paint spills, water, and heavy easels or equipment. We recommend low-maintenance, water-resistant composite or commercial-grade vinyl flooring that easily wipes clean, preventing stain absorption and keeping your studio looking immaculate.
Generally, no. Most garden art studios fall under standard Permitted Development rules as single-storey outbuildings (under 2.5 metres overall height when positioned within 2 metres of a boundary). If your property is a listed building, in a conservation area, or requires extra roof height, our team can guide you through securing planning permission or a Lawful Development Certificate.
Yes, absolutely. We reinforce the subfloor structure during the design stage to easily accommodate heavy commercial gym equipment, power racks, cable machines, and heavy dumbbell sets. We use heavy-duty floor joists and high-density timber subfloors, and we recommend pairing this with a specialised rubber gym flooring system to absorb impact, protect equipment, and prevent floor wear over time.
For most garden gyms built under Permitted Development (which caps the external height at 2.5 metres near boundaries), internal ceiling heights are typically around 2.05 to 2.15 metres, plenty of space for bench presses, squat racks, and cardio equipment.
If you require extra vertical clearance for overhead shoulder presses, pull-up rigs, or tall functional trainers, we can design a building with a higher roof profile (which may require formal planning permission) or utilise ground-level concrete foundations to maximize internal head height.
Proper climate control is essential for a home gym. Every garden room features full thermal insulation in the floor, walls, and roof to regulate temperature year-round. To handle heat and moisture generated during high-intensity training, we recommend adding an air conditioning and climate control unit (which provides both cool air in summer and instant heat in winter) alongside opening trickle vents, bi-fold doors, or top-hung opening windows for natural cross-ventilation.
Our standard builds offer excellent natural sound deadening thanks to thick wall cavities, high-density insulation, and double-glazed doors and windows. However, if you plan to play loud music late at night or train heavy with deadlifts, we can incorporate enhanced acoustic insulation (such as sound-deadening plasterboard, acoustic insulation batts, and shock-absorbing rubber gym tiles) to minimise sound transfer to neighboring properties.
Running multiple pieces of motorised fitness equipment, such as treadmills, rowers, and exercise bikes, alongside air conditioning, smart TVs, and surround sound speakers requires a reliable power supply.
We include a heavy-duty consumer unit as part of your pre-wired electrical package and can install a dedicated mains connection from your house with ample double sockets strategically placed around your equipment layout.
A high-quality, professionally built garden room can last 30+ years with minimal maintenance. The required upkeep depends on your choice of external cladding:
- Composite Cladding & Cedral Fibre Cement: Virtually zero maintenance, no painting or staining required; simply wash it down with water occasionally.
- Thermowood & Cedar Timber: Highly durable natural woods that can either be treated with wood oil every 1–2 years to retain their warm tone, or left untreated to weather into an attractive silver-grey finish.
Yes, absolutely. Because all of our bespoke garden rooms are made to order, we can design custom internal partition walls to create smaller rooms within your building. Whether you want to add a hidden storage closet, a private toilet/shower room, or separate a home office from a gym space, we can customise the internal layout to suit your needs.
Yes, all of our garden rooms come pre-wired as standard with a 2-way consumer unit, 2 double sockets, 6 to 10 internal downlighters (depending on the building size), 2 outside lights, and an external input socket. As standard, downlighters are finished in chrome and sockets/switches are white, with premium upgrades available upon request. To get you connected, our qualified electrician can connect the building to your main house for an additional charge, or you are welcome to use your own electrician.
As standard, we offer premium Larch and Thermowood exterior cladding. For a more bespoke finish, we also offer upgrades to Western Red Cedar cladding, composite cladding, or K-Render. Because all of our timber garden buildings are made to order in the UK, we are always happy to discuss alternative cladding materials or custom design ideas to match your property.
As standard, our luxury garden rooms feature a full plaster finish on the internal walls and ceiling, leaving a smooth, professional surface ready for decoration. If you intend to use part of your building as a garden shed, workshop, or storage area, we can swap the plaster for durable 12mm ply boards and upgrade the standard laminate flooring to heavy-duty Caberfloor to create a rugged, functional space.
Yes, absolutely. Every single one of our timber buildings is made to order, allowing you to completely custom design your own bespoke garden room. Our expert team works closely with you to create a tailor-made layout that maximises your available garden space, meets your exact functional requirements, and perfectly matches your style.
In most cases, no. The majority of our garden room bars are designed to fall within standard permitted development rules (under 2.5 metres in overall height when placed close to a boundary), meaning you won't need formal planning permission.
However, if you plan to build a larger structure, add a high pitched roof, or live in a conservation area or listed property, we can assist with securing planning approval or a Lawful Development Certificate.
Absolutely. A fully functional garden pub often needs running water and drainage for handwashing, rinsing glasses, and operating wet bars or ice machines. During the design stage, we can integrate complete plumbing layouts and connect your garden bar directly to your mains water supply and waste system.
Because a garden bar typically runs high-draw equipment, such as commercial beer fridges, draft dispense systems, big-screen TVs, surround sound, and ambient lighting, we supply a heavy-duty, dedicated consumer unit as part of your electrical package. Our team works with you to design a custom electrical plan to ensure you have plenty of double sockets, LED downlights, and exterior feature lighting exactly where you need them.
Yes, our garden bars are built for year-round entertaining. Constructed using high-density wall insulation, double-glazed windows and doors, and solid timber framing, they retain heat effortlessly in winter and stay cool during summer. We can also pre-wire wall heaters or install air conditioning isolators so you can enjoy draft beer in absolute comfort, no matter the weather.
We offer flexible options to suit your vision! Our skilled carpenters can build a custom, bespoke wooden bar counter integrated directly into your build, complete with custom shelving, LED backlighting, and under-counter fridge recesses.
Alternatively, if you prefer to source a vintage pub bar, install a commercial draft system, or bring in your own furniture, we can deliver a fully finished, plastered space ready for your custom fit-out.
To maximise your entertaining space in summer, we offer Aluminium or uPVC bi-fold doors, sliding doors, and French doors that open up completely onto your patio or garden decking. We can also design integrated bar hatch windows, allowing you to serve drinks directly to guests sitting outside on the deck.
To make purchasing your timber building seamless, our ordering process features a flexible, four-part payment structure:
- 15% Initial Deposit: Paid upon ordering to secure your build slot.
- Design & Plan Approval: We create and send detailed architectural plans for your approval. Once approved, the second payment is made to move your building into production.
- Pre-Assembly Payment: The third installment is due just prior to our team arriving for the on-site assembly of your building.
- Final Balance: The remaining balance is only paid upon the successful completion of the works.
Yes, our luxury garden rooms are fully engineered for comfortable year-round use, even during cold UK winters. As standard, our premium buildings feature 100mm acoustic insulation in the walls, floors, and roof, paired with foil-backed plasterboard for superior vapour resistance and maximum heat retention. Upgraded insulation packages are also available to meet higher specifications, such as soundproofing or residential-grade garden annexes.
You can expect our bespoke garden rooms to have a life expectancy of over 30 years. Built using high-quality, durable timber and premium construction techniques, all of our garden buildings come with a 10-year structural warranty as standard, giving you long-term peace of mind.
Generally, no! Most of our garden buildings are designed to fall within permitted development rules, meaning you will not require a formal planning permission application. However, rules can vary depending on your location and building size. If your project does require full planning permission, our expert team will happily guide and assist you through the entire application process.
Yes, we offer a free of charge, no-obligation site survey to help you plan your project. This essential step ensures your designated garden area is suitable, allows us to measure your space accurately, and lets us assess site access. Depending on your UK location, this consultation will be conducted via an in-person site visit or a virtual video call (such as WhatsApp, Zoom, or Teams).
Delivery is free if you are within twenty miles of us. We do regularly install Garden Rooms further afield and would be happy to provide a quote.
What can�t you use it for, would be the better question! A garden office, craft studio, party and games room, school classroom, teenage hangout, home business (hairdressers, beauty salon, dog grooming parlour, eyelash studio), hobby room, music room, additional family living space, annexe accommodation. The possibilities are endless!
By employing our staff, we can ensure the highest quality build our Garden Rooms are installed by our London Timber Buildings team.
We are proud of team, they are friendly, highly skilled, and efficient. As you will read from our reviews, our customers agree with us on this. We have an excellent site manager, who ensures the project runs successfully, and is on hand to answer any questions you may have during the build process. We also employ a carpentry apprentice each year, to help encourage your people to be involved in the future of our industry.
We offer a 4 stage payment structure, detailed in the process chart shown on this page, made in 4 payments.
- Deposit payment of 15% of total quotation, to confirm your order
- 2nd payment, of 35%, is due upon approval of plans
- 3rd payment, of 35%, is due prior to works commencing at your property
- Final payment is due on completion of build
The total cost depends on your chosen dimensions, cladding materials, glazing choices, and electrical/plumbing options. To give you an accurate price, we offer a free-of-charge, no-obligation site survey. Our team will assess your site access, discuss your design ideas, and provide a detailed, itemised quotation with no hidden surprises.
We generally work toward an 8 to 10-week lead time, though this can fluctuate slightly depending on seasonal demand. If you have a strict deadline or require an earlier installation, please let us know and we will do our best to accommodate you.
We generally work towards an eight to ten week lead time, subject to seasonal changes. Should you require your Garden Room for an earlier deadline, we will do our best to work with you to try and achieve that. Please speak with our sales team for current lead times.
No. To ensure the absolute highest standards of quality control and craftsmanship, all of our buildings are installed exclusively by our own fully trained, in-house London Timber Buildings team.
No, you do not need to be home the entire time. We only ask that someone is present when our installation team first arrives so you can confirm and sign off on the exact location of the building in your garden before construction begins.
Very little. We only ask that the chosen build area is completely clear of obstacles like trees, shrubs, or old structures. Because our advanced base system can level out uneven ground, we can build over multiple surfaces simultaneously, including grass, paving, soil, or concrete.
Yes. If you already have an existing concrete or timber base that is perfectly level and matches the exact dimensions required, our team can build directly onto it. Alternatively, you can choose to have us install a professional base system for you.
We assess access during your initial site survey. Generally, we only require a standard door's width of clearance to safely transport materials to the build site. Our installation team does not need access to the inside of your home unless your garden can only be reached by walking through the property.
While installation times vary depending on the size and complexity of your chosen model, our expert team completes the assembly of most standard-sized log cabins within 3 to 5 working days.
Our garden rooms are manufactured by us, here in the UK. Time frame can vary depending on the size of building you choose but generally we aim to complete your garden room within 3 weeks of works commencing.
Very little. All we ask is that the area is clear (i.e. no trees, shrubs, existing sheds etc). We can build over slightly uneven ground as our base system will level off the area and we can build over multiple surfaces (i.e. a combination of paving,
No. We only ask that someone is there when the fitters first arrive so you can sign off the exact location of the building in your garden as work commences.
We will assess the access when carrying out your site survey. Generally, we do not need any more than a standard door�s width to reach the build site. Our fitters do not require access to your property, unless the garden can only be reached by going through the house.
Building heights vary by design. To ensure a hassle-free project, popular models like our Wembley, Chiswick, and Pimlico ranges are specifically engineered to stand at 2.5m or less to comply with UK permitted development rights for standard gardens. Larger apex-roof models are taller, though bespoke heights can always be manufactured to order.
There are no limits—we can manufacture and build to any custom size or dimension you require. Please note that if your log cabin exceeds 30 square metres of internal floor space, the structure may require a formal building regulations application.
All dimensions listed across our website are external wall measurements. Please note that these dimensions do not include the roof overhang of your chosen log cabin model.
For our flat-roof Pimlico and Wembley ranges, we use a premium, single-piece EPDM synthetic rubber roofing membrane, which eliminates seams and prevents leaks; it features a 25-year manufacturer's warranty and a 50-year life expectancy. For apex-roof log cabins, we offer superior-grade felt shingle tiles or premium rubber slate-effect tiles, which are maintenance-free, eco-friendly, and come with a 50-year manufacturer's warranty.
We use only premium-quality, sustainably sourced timber. All of our building logs are strictly graded and controlled under the FSC (Forest Stewardship Council) framework, ensuring our materials promote responsible and sustainable forest management worldwide.
The highest point of the building is either 2.5m, or up to 3m, as standard. These heights are chosen to comply with permitted development rights. Bespoke heights are available, if required.
All measurements listed on our website are external wall measurements. They do not include any overhang your chosen Garden Room may have.
There are no limits. We are happy to build to any size. Please bear in mind that you may have a requirement for the Garden Room to meet building regulations if it exceeds thirty square metres internally in size.
Delivery is £260 for locations within a 20-mile radius of our depot. However, we regularly deliver and install our premium log cabins much further afield across the UK and are always happy to provide a custom delivery quote.
We provide two clear pricing paths online: Self-Build/Supply Only and our Full Turnkey Package. The Full Turnkey option provides a complete, hassle-free installation including: log cabin assembly, local delivery, supply and installation of an eco-base, floor and roof insulation, premium EPDM roofing, guttering with downpipes, and the application of a premium exterior wood protector.
We include high-performance double-glazed windows and doors across our entire log cabin range as standard. We do not use low-quality single glazing, as it is unsuitable for maintaining comfortable year-round temperatures
No, electrics are not included as standard. However, a mains electrical connection can be easily added to a timber log cabin once the structural build is finished. We work closely with trusted local electricians who can provide a separate quote, or you are welcome to use your own professional.
No, a base is not included in the base price, but we offer a professional installation as an optional extra. We highly recommend our heavy-duty eco-base system, which uses solid recycled plastic posts concreted into the ground topped with a pressure-treated timber framework. This elevates the cabin away from damp ground, allows crucial under-floor airflow, and effortlessly levels out uneven surfaces. Traditional concrete bases are also available upon request.
Yes. We can either work alongside your own plumber or we can do this for you. We offer the full service, if required, from drainage and sewage system installation to the fitting of white goods.
We offer acoustic insulation as an upgrade. This will reduce the transfer of sound from the building. Different acoustic treatments are available depending on the level of sound proofing required.
The Garden Rooms are fully insulated and therefore heat up quickly and retain their heat well. We, therefore, feel that underfloor heating would be unnecessary and an inefficient way to heat the building. However, although this is not a service we offer, you could have electric underfloor heating easily fitted to your garden room if it is something you particularly want to have.
No. Due to the technical construction of the Garden Rooms these must be installed by our experienced team. If you are looking for a self-build project, we would suggest looking at our Log Cabins.
As standard, our garden room prices include the following:
- Local Delivery within 20 miles. We do install beyond this distance however a small charge may apply.
- Installation of ground screw foundation.
- Installation of timber frame garden room, engineered using timber frame panels.
- 100mm thick rockwool insulation within the walls.
- 50mm thick foil backed insulation boards within the floor & roof.
- All internal walls are lined with foil backed plasterboard before a full plaster finish. Ready for customer decoration.
- All flooring 22mm moisture resistant Caber Floor P5.
- Laminate flooring, including underlay & skirting, in choice of colours.
- All roof boards 18mm OSB 3BBA moisture resistant.
- EPDM one-piece rubber membrane, final roof cover
- Exterior cladding – Thermowood
- Supply & fit guttering to the rear of the building
- Pre-wired with 2 way consumer unit, 2 double sockets, 6 to 10 downlighters (depending on size of building) & an outside input socket. All sockets & switches are white as standard, upgrades available on request.
- 10 year structural warranty
