Prefab Garage and Carport 2026: Costs, Foundation, Permit and Photovoltaics
The price range for a covered parking spot runs from an open timber carport for a few thousand euros to a thermally insulated concrete garage. This guide compares the costs of prefab garages in concrete, steel and timber with those of carports, explains the foundation, building permit and running costs and shows why photovoltaics on the garage roof pays off especially well in 2026.
Anyone building a house almost always plans a shelter for the car too – but the price range is enormous: from an open timber carport for a few thousand euros to a thermally insulated concrete double garage for a five-figure sum, the spread is wide. Prefabricated garages (Fertiggaragen) arrive as a prefabricated component by crane onto the foundation and stand within a day; carports can even be assembled as DIY work. This guide sets the costs of prefabricated garages in concrete, steel and timber against those of carports, explains the foundation, building permit (Baugenehmigung) and running costs, and shows why photovoltaics on the garage roof pays off especially well in 2026.
What do a prefab garage and carport cost in 2026?
Short answer: In 2026, a prefabricated garage costs around €3,000 to €14,000 for a single garage, depending on the material: steel garages are the cheapest at €3,000 to €6,000, concrete garages come in at €6,000 to €14,000 and are considered particularly durable and burglar-resistant. A carport is significantly cheaper – a single timber carport is available from around €1,500, a timber double carport from about €2,500 as a kit. On top of all prices come the foundation, delivery, assembly and, where applicable, the building permit. Anyone wanting maximum protection and value retention reaches for the concrete garage; anyone wanting to build cheaply, airily and quickly reaches for the carport.
The fundamental difference: the garage is an enclosed, often lockable space that protects the vehicle and equipment all round from the weather, theft and vandalism. The carport is a roofed parking space open at the sides – cheaper, more quickly permitted and lets the car dry off better after rain, but offers less protection. Which solution fits depends on the budget, use and the local building regulations. Anyone building anyway should plan the car shelter early – also with a view to DIY work, which yields especially much with a carport.
Prices by material: concrete, steel and timber compared
Short answer: The material determines both price and lifespan: steel prefab garages are the cheapest enclosed variant (€3,000 to €6,000) but react more sensitively to corrosion and condensation. Concrete prefab garages cost €6,000 to €14,000, are practically maintenance-free, fire-safe and last 40 years and longer. Timber garages and timber carports slot in between them in price, score visually and ecologically, but need regular care. For a timber double carport you pay around €2,500 to €6,000 in 2026 depending on size, type of wood and roof shape.
Prefab garage and carport by material (2026, with assembly, without foundation)
| Variant | Guide price | Lifespan | Special feature |
|---|---|---|---|
| Steel garage (single) | €3,000–6,000 | 20–30 years | cheap, watch for rust/condensation |
| Concrete garage (single) | €6,000–14,000 | 40+ years | very robust, burglar-resistant |
| Concrete garage (double) | €12,000–22,000 | 40+ years | highest value retention |
| Timber carport (single) | €1,500–3,500 | 20–30 years* | cheap, good looks |
| Timber double carport | €2,500–6,000 | 20–30 years* | popular, often as a kit |
| Aluminium carport | €3,500–8,000 | 30+ years | low-maintenance, modern |
* Provided the timber is regularly maintained (glaze or coating every few years) and pressure-impregnated wood or glulam is used.
Timber double carport: the value-for-money winner
The timber double carport is the most sought-after affordable solution for two vehicles in 2026. As a kit with glulam beams (BSH) it is available from around €2,500 and can be set up over a weekend by two people. Watch for pressure-treated structural timber or glulam, a sufficient roof pitch for water run-off and point foundations under the posts. A surcharge trapezoidal sheet or PVC roof protects better than open battening – and can later be fitted with photovoltaics without any trouble.
The foundation: an often underestimated cost block
Short answer: For both garage and carport, the foundation is a cost block of its own that is almost never included in the advertised base price. A prefab garage rests on a surrounding strip foundation or a floor slab, which costs around €1,500 to €4,000 in 2026 depending on size and ground conditions. A carport usually only needs point foundations under the posts (in-situ concrete or ready-made foundations) for around €500 to €1,500. Founded on load-bearing, frost-safe ground, the foundation prevents settlement and frost damage – saving here does not pay off later.
The assembly itself is done quickly: the concrete prefab garage is set as a whole onto the prepared foundation by mobile crane and stands within a few hours. What matters are the access for the crane and a precisely aligned, level foundation. With a carport, many owner-builders do the foundation and assembly as DIY work – which saves several hundred to over a thousand euros. Clarify in advance the exact position of the supply lines and the boundary distances to the neighbouring plot.
- Plan a frost-safe foundation (min. 80 cm foundation depth depending on region).
- Check the access and standing area for the mobile crane of the prefab garage.
- Slope the floor slab of garages slightly towards the door so water runs off.
- For the carport, align and level the point foundations precisely.
- Lay empty conduits for electricity (light, wallbox, PV) directly into the foundation.
Plan garage and carport with the house from the start
Anyone who considers the car shelter, foundation and empty conduits early saves money and avoids expensive retrofitting. Compare the fixed-price offers of several prefab house manufacturers from our network for free – many offer a garage or carport as a coordinated package with the house.
Building permit: when an application is needed
Short answer: Whether a garage or carport needs a building permit is determined in 2026 by the respective state building code (Landesbauordnung) – the requirements vary from state to state. Garages and carports are often permit-free up to a certain size (frequently 30 to 50 m² footprint and a wall height of up to around 3 metres), but must still comply with the development plan (Bebauungsplan), the setback areas to the neighbour and the boundary-building rules. Permit-free is therefore not the same as rule-free. When in doubt, ask the local building authority before building – an unauthorised structure can become expensive and, in extreme cases, lead to demolition.
Special rules apply at the plot boundary: in many states, garages and carports may be built directly on the boundary, provided their total length per boundary and the wall height do not exceed certain limits. Speak with the neighbour and, ideally, obtain written consent in order to prevent later disputes. How the permit works in detail and which documents are required is explained in the building permit guide; questions of neighbour law are dealt with in the neighbour law guide.
Permit-free does not automatically mean permitted
Even a permit-free garage or carport must comply with the development plan, the setback areas and the boundary-building rules. Anyone who builds without checking and violates these requirements risks a use ban or even demolition at their own expense. A short preliminary building enquiry with the building authority costs little and creates legal certainty before the crane arrives.
What size does a garage need? Dimensions for single and double garages
Short answer: Today a single garage should measure at least 3 × 6 metres, while 3.5 × 7 metres is comfortable – modern SUVs and door openings need more space than the classic 2.5 × 5 metres of the 1980s. A double garage is usually 6 × 6 metres, better 6.5 × 7 metres; anyone also wanting to store bicycles, a workbench or bins should plan 1 to 2 metres of depth or width on top.
Common garage sizes and what they are enough for (guide values 2026)
| Variant | Usual dimensions (W × D) | Suitable for |
|---|---|---|
| Compact single garage | 3.0 × 6.0 m | small cars, compact class |
| Comfortable single garage | 3.5 × 7.0 m | SUV, estate + shelving/bicycles |
| Standard double garage | 6.0 × 6.0 m | two cars side by side |
| Comfortable double garage | 6.5 × 7.0 m | two SUVs + storage |
| Large garage | 4.0 × 8.0–9.0 m | motorhome, trailer, workshop |
Important besides the footprint: the clear entry height (at least 2.0 metres, better 2.3 to 2.5 metres for roof boxes and vans) and the door width (single door at least 2.5 metres; for double garages, two single doors are often more practical than one wide door). Bear in mind, too, that many state building codes limit the permit-free garage area – a generous double garage slips into being permit-required more quickly than a compact single garage.
What operation and value retention cost in the long run
Short answer: The running costs of a garage and carport stay within limits: a concrete garage is practically maintenance-free, steel garages occasionally need rust protection, and timber constructions require a fresh coating or glaze every few years (material costs around €50 to €150 plus labour). Added to this are minimal costs for lighting and, where applicable, a wallbox. More significant is the positive effect on the property value: a solid garage noticeably raises the resale value and the lettability – the surcharge over the carport often partly pays for itself on sale.
Operating costs and maintenance effort at a glance (2026)
| Variant | Maintenance | Annual costs (guide value) |
|---|---|---|
| Concrete garage | almost none | ≈ €0–20 |
| Steel garage | occasional rust protection | ≈ €20–50 |
| Timber carport/garage | glaze every 3–5 years | ≈ €30–80 |
| Aluminium carport | hardly any maintenance | ≈ €0–20 |
As a hobby room, workshop or storage, the enclosed garage clearly plays to its strengths. Anyone who values a dry car, however, should know: in an open carport the air circulates, the vehicle dries off more quickly after rain, and condensation collects less than in a poorly ventilated garage. Both solutions increase comfort and protect the paintwork from sun, hail and bird droppings – and thereby the vehicle's value.
Photovoltaics on the roof of a garage and carport
Short answer: In 2026, the garage or carport roof is one of the most attractive surfaces for photovoltaics: it is usually shade-free, easily accessible and often close to the wallbox for the e-car. A PV system on a single garage (around 2 to 3 kWp) costs about €4,000 to €7,000 fully installed, and on a double carport (5 to 8 kWp) around €8,000 to €14,000. The generated electricity charges the car, covers the household demand and noticeably lowers the electricity bill; surplus power flows into the grid. A so-called solar carport combines a parking space and a power plant in a single component.
Even during construction, pay attention to the roof's structural suitability for module and snow loads, a sufficient roof pitch towards the south side, and pre-installed empty conduits from the roof to the meter cabinet and the wallbox. Anyone erecting the carport anew anyway should have it built straight away as a solar carport with a trapezoidal sheet or glass roof – that is cheaper than later retrofitting. How a PV system pays off and what funding there is can be read in the photovoltaics guide.
- Design the roof structure for module and snow loads (consider directly with a new build).
- Provide empty conduits from the roof to the meter cabinet and the wallbox.
- Check the south orientation and shade-free position of the roof surface.
- Compare solar-carport kits with a trapezoidal sheet or glass roof.
- Maximise self-consumption (charging the car, household) – this shortens the payback time.
Whether concrete, steel or timber, garage or carport, with or without photovoltaics: the right choice depends on the budget, use and the local regulations. Plan the car shelter early, obtain several offers and foundation prices, and check the permit situation in good time – then the parking space fits seamlessly and economically into your building project. As orientation for the house price, which the parking-space budget leans on, the current prefab house prices 2026 serve as a guide.
Get garage, carport and house from a single source
Many prefab house manufacturers offer a garage or carport as a coordinated package with the house – including the foundation, PV preparation and wallbox. We put you in touch, free of charge and without obligation, with suitable providers offering transparent fixed prices, so that your parking space fits the house exactly, both technically and in price.
What does your dream house really cost?
Request suitable quotes from vetted manufacturers for free and compare the prices per square metre for your construction project.
Compare house prices nowImportant questions briefly explained
The most common price questions around Prefab Garage and Carport 2026 – answered concisely by the Prefabricated House editorial team (as of 2026).
