High-Specification Garden Rooms for Cardiff
Adacon supplies the P600 modular building system, a sophisticated alternative to standard timber garden rooms. Each module provides approximately 13 m² of floor space, constructed around a robust steel frame with high-performance insulation. These are not converted containers; they are purpose-built architectural modules manufactured in our controlled facility and delivered to South Wales in a finished state.
Flexible Layouts and Typical Uses
The P300/P400/P600 modular range is designed to be scalable. Depending on your available garden space and intended use, you can choose from various configurations:
- Single Module (13 m²): Perfect for a spacious executive garden office or a private treatment room.
- Double Module (26 m²): Ideal for a home gym, a secondary lounge, or a large hobby studio.
- Multi-Module (39 m²+): Used for self-contained garden annexes or expansive multi-purpose leisure suites.
Because the modules can be joined side-by-side or in L-shapes, you can design a layout that fits the specific footprint of your garden. You can experiment with different layouts using our P600 configurator to see how different window and door placements work for your site.
What is Included as Standard?
Every Adacon building is delivered with a high-level internal specification. We do not provide a 'shell-only' service; our goal is to deliver a room that is ready for furniture. Standard features include:
- Full thermal insulation in walls, floor, and roof for year-round use.
- Plastered and painted internal walls and ceilings.
- Quality laminate flooring and skirting.
- Internal LED lighting and multiple electrical sockets.
- Double-glazed uPVC windows and external doors.
- Exterior cladding in a choice of colours, which can be configured wall-by-wall.
For those looking for a complete garden solution, we offer optional extras such as WC and shower compartments, kitchenettes for guest accommodation, and air conditioning units for climate control during Welsh summers and winters. You can find more details on our garden rooms overview page.
Indicative Pricing for Cardiff Projects
We believe in transparent pricing. While every project varies based on the final specification and optional extras, most garden room projects in the Cardiff area fall within the £15,000 to £35,000 price band. This includes the building itself and delivery to your site. It is important to note that groundworks, the preparation of a level base, and the final connection to your home's consumer unit and drainage are not included in this price and remain the customer's responsibility.
Delivery and Access in South Wales
We deliver across the UK mainland, including Cardiff, Newport, and the wider South Wales region. Most modules arrive via the M4 corridor, reaching Cardiff via the A48 or A470. Delivery is typically carried out by a flatbed lorry equipped with a HIAB crane for offloading.
Cardiff presents unique logistical challenges. In areas like Cathays or Victoria Park, narrow terraced streets can limit large vehicle access. In these cases, we may coordinate a road closure or a specialist crane lift to move modules over rooftops. For rural properties on the outskirts of the city, we assess narrow lanes and gate clearances. We recommend discussing your specific site access with us during the quotation stage.
Planning Permission and Building Regulations
Many garden rooms fall under 'Permitted Development,' meaning they do not require full planning permission if they meet specific height and size criteria. However, rules vary significantly depending on whether you live in a conservation area, a listed building, or a new-build estate with restricted covenants. We strongly advise all Cardiff customers to consult with Cardiff Council or the Vale of Glamorgan Council planning departments before ordering to ensure compliance with local policies.
Why Choose Adacon for Your Cardiff Home?
Adacon provides a bridge between flimsy timber structures and expensive, slow traditional builds. Our lead times are measured in weeks, not months, and our steel-framed construction ensures a lifespan that far exceeds wood-based alternatives. By choosing a P600 module, you are investing in a permanent addition to your property that offers the same comfort and finish as a room inside your house.
Related modular buildings
Design yours online — free
You can lay out a garden rooms in Cardiff yourself in a few minutes with the free Adacon P600 configurator: arrange the modules in 3D, pick your windows, doors and cladding colours wall by wall, and see an estimated price straight away. There is no obligation and no salesperson — save the design and we will pick it up from there.
Prefer to talk it through? Request a free quote and we will come back with a specification and price for your project.