BESPOKE OAK FRAME STRUCTURES
Timber frame garage with room above: hand-cut oak, solar-ready
A timber frame garage with room above is a dual-purpose structure that combines secure vehicle storage with usable upper space—workshop, studio, guest room or storage. Green Oak Solar Frames makes bespoke versions in hand-cut solid green oak, with optional integrated solar roof tiles, battery storage and EV charging. Configure yours live.
The timber frame garage with a room above solves a real problem for self-builders and renovators: you get weatherproof vehicle shelter downstairs and flexible upper space without the cost and planning complexity of a full two-storey extension. Our oak frames are cut by hand to your exact dimensions, then delivered as a kit ready for assembly on-site. Each frame is made from solid green oak—not laminated, not finger-jointed—so the structure moves as one piece as the wood naturally seasons. This matters because timber frame stays true over time, and defects show early, not hidden in joints.
What makes our approach different is the integration of solar from the start. Most timber structures are specified separately from renewable energy systems, which means compromises on aesthetics and function. Our frames are designed with solar roof tiles, battery storage and EV charging built into the specification conversation, not bolted on after. You configure the whole thing live in our 3D tool—see the frame, the upper room layout, the solar array, the battery location and EV charging point all at once. That clarity at the specification stage means fewer surprises on site.
For the garage downstairs, you work with us to set door width, height, position of any internal posts, and whether you want vehicular access only or a side personnel door. The room above can be an open-plan studio, partitioned for storage, fitted with windows and rooflights for natural light, or left as a raw shell for you to finish. Because it’s timber frame, internal layouts are genuinely flexible—no load-bearing walls to work around, so your upper space does what you need it to do.
The solar integration works like this: roof tiles replace standard slates or tiles across the whole upper roof or a section of it, feeding a battery system (located inside or externally) that stores power for your home, charges your EV, or exports to grid if you’re grid-connected. The battery and EV charge point can sit within the garage footprint, so you’re not adding sheds or extending further. Every configuration is run through our live 3D tool so you see structural load paths, roof pitch, solar orientation and shadow from nearby trees or buildings all at once. That removes guesswork.
Specification happens through direct conversation with our team. You tell us your site, your intended use of the upper room, whether you want EV charging and battery storage, and your roof orientation. We work through the 3D configurator together, testing layouts, solar array size, and structural options. There’s no hidden ‘standard spec’—every frame is bespoke to your land and your brief. Once you’re happy with the layout and solar integration, we supply the frame as a kit. Whether you self-build, hire a local carpenter, or use a general contractor is your choice; we supply the engineered oak frame and coordinate around your timeline.
Self-builders and renovators choose timber frame garages with upper rooms because they’re faster than conventional brick-and-block outbuildings, they look better (green oak weathers to silver-grey naturally, and the frame stays visible inside if you leave it open), and they don’t eat into your main building budget. If you’re already working with an architect or surveyor on the main renovation, they can sign off on the frame drawings; building control approves the structural design. The frame itself is the hard part. Once it’s up, the roof, walls, finishes and services are straightforward—and genuinely yours to plan.
Green oak frames move as they dry. That’s not a flaw; it’s how solid timber works. We design for this movement. Joints are set to compress, not expand; connections allow the wood to work without cracking. You’ll notice small settling in the first couple of years—doors might need a tiny adjustment, that’s normal. What you won’t see is the frame failing or joints opening up, because the structure is designed around real timber behaviour, not treated as if it were steel or concrete.
The 3D configurator isn’t a marketing toy. It’s the tool we use to design your frame and run structural logic. You see load paths, span calculations, roof pitch, and solar placement all in real space. You can test different room layouts upstairs, try a gable-end window or a roof light, and see how that changes shadow on the solar array. Every change updates the 3D model instantly. When you’re ready, that same model feeds the cutting drawings our makers use. It’s the same file from specification to build.
Once you’re happy with the configuration, we quote a real price based on your frame size, oak specification, and solar integration. We deliver the kit to your site, ready for assembly. Nationwide UK delivery. You then arrange site works, subcontractors and assembly to your timeline. We’re here to answer questions as the build goes on. The garage with room above becomes part of your property, adding value and flexibility in a way a single-purpose garage never does.
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Frequently asked
What’s the difference between a timber frame garage with a room above and a conventional extension?
A timber frame is faster to erect, doesn’t require ground-level footings to match your main building, and costs less per square metre. It’s also genuinely modular—the room above can be finished in phases. A conventional extension ties into your main structure and is more expensive if you need special foundations. Timber frame is also reversible; it’s bolted, not built in.
How much does a timber frame garage with room above cost?
Price depends on your frame size, oak grade, location (delivery distance), and solar integration. Start by configuring your structure in our live 3D tool. That gives you a real quote based on your actual brief. We don’t work from a price list; every frame is bespoke.
Can I integrate solar roof tiles into the upper room roof?
Yes. Solar tiles replace standard roof tiles across part or all of the upper roof. They feed a battery system (usually located in the garage below or externally on the frame). You size the array to your needs—charge an EV, power the upper room, or export surplus to grid. See the solar placement and shadow patterns in the 3D configurator before you commit.
Do I need planning permission for a timber frame garage with room above?
That depends on size, location and what you use the upper room for. A garage outbuilding often falls within permitted development if it meets size and distance rules. If the upper room is a dwelling or holiday let, you may need planning. We recommend you check with your local planning authority before specifying. Our frame drawings support a planning application if needed.
Can I self-build a timber frame garage, or do I need a carpenter?
Self-build is possible if you’re confident with basic joinery and site assembly. Most people hire a local carpenter or general builder for the frame erection—it’s a weekend or two’s work for a two-person team once the frame arrives. We supply the kit with assembly guidance. You decide how you want to approach the build.
Tell William what YOU want to build, and he will tell YOU what YOUR site can take.
Send the size of YOUR plot, what YOU want under cover, and roughly when YOU want it standing. William prices oak frame garages, solar carports and pergolas from £31,485 with the solar, the battery and the EV charging designed in from the start, and he will walk YOU through the numbers for YOUR structure. One team draws it, builds it and commissions it, so there is nobody for YOU to chase between the frame going up and the power coming on. No obligation, and no sales script.
Talk to William