In most cases, no. Garden rooms are typically classified as "outbuildings" and fall under permitted development rights, meaning planning permission isn't required if certain conditions are met:

The structure is single-storey.

Maximum eaves height is 2.5 metres.

Overall height doesn't exceed 4 metres with a dual-pitched roof or 3 metres for other roof types.

If within 2 metres of a boundary, the entire building must not exceed 2.5 metres in height.

The garden room doesn't cover more than 50% of the land around the original house.

However, if your property is in a designated area (e.g., National Parks, Areas of Outstanding Natural Beauty) or is a listed building, different rules may apply. Always consult your local planning authority to confirm.

Absolutely. Our garden rooms are designed for comfort throughout all seasons. We utilise high-quality insulation materials, such as Structurally Insulated Panels (SIPs), which provide excellent thermal efficiency. This ensures your space remains warm in winter and cool in summer, making it ideal for various uses like offices, gyms, or studios.

We offer a range of standard sizes to suit different needs, as well as fully bespoke options tailored to your space:

Small (e.g., 3m x 3m): Perfect for a compact office, reading nook, or art studio.

Medium (e.g., 4m x 3m): Great for a home gym, hobby room, or garden retreat.

Large (e.g., 6m x 4m): Ideal for a multifunctional space—think office and lounge, teen den, or guest room.

Every garden and lifestyle is different, so we also design custom sizes to fit your available space and exact requirements. Whether you're working with a tricky corner or want to maximise your plot, our team can guide you through the best solution during a free consultation.

Our garden rooms start from £13,995 for a 3m x 3m model, with prices varying based on size, materials, and custom features. We offer different packages to suit various budgets and requirements. During your consultation, we'll provide a detailed quote tailored to your preferences.

Installation times can vary depending on the complexity and size of the project. On average, once the groundwork is prepared, construction can take between 2 to 4 weeks. We'll provide a more accurate timeline during the planning phase.

Our container garden rooms are built using repurposed shipping containers, combined with premium insulation, timber cladding (if chosen), and stylish finishes inside and out. They’re a smart, sustainable choice with a modern edge.

Our clients use their garden rooms for home offices, gyms, yoga studios, saunas, creative spaces, guest rooms, or entertainment areas. We design your space around how you want to use it.

Every Nestive garden room includes design, insulation, electrics, flooring, finishes, and external cladding. We’ll confirm all details in your quote — no hidden costs.

With proper care, your Nestive garden room will last for decades. We use durable, sustainable materials and back our workmanship with a 10-year guarantee.

We keep disruption to a minimum. Our team works carefully, tidily, and with respect for your home and garden — and we manage the whole process for you.

We design and build garden rooms across Swansea, Cardiff, Mid Wales, West Wales, and surrounding areas.

Prices start from:

£13,995 for timber garden rooms

£12,995 for container garden rooms
Final cost depends on size, materials, and features.

A bespoke garden room is a custom-designed, standalone structure built in your garden to suit your specific needs — whether that’s a home office, gym, creative studio, or guest space. Unlike off-the-shelf models, bespoke garden rooms are tailored in size, layout, materials, and finishes to match your lifestyle and the character of your home.

Nestive offers both timber and container garden rooms, fully customisable and built to last with premium insulation, modern cladding, and thoughtful design.

Getting started with your Nestive garden room is simple:

Book a free consultation – We’ll talk through your needs, budget, and space.

Choose your style and package – Select from our Silver, Gold, or Platinum builds, or request something bespoke.

We handle the rest – Design, build, delivery, and installation — all managed by our expert team.

Whether you're ready to build or just exploring ideas, we’re here to help you create the perfect garden space for work, rest, or play.

The key difference is in the structure and aesthetic:

Timber garden rooms are built from scratch using insulated timber frames and cladding. They offer flexibility in shape, layout, and finishes — perfect for a warm, natural look that blends into your garden.

Container garden rooms are created by converting shipping containers into stylish, fully insulated living spaces. They’re strong, modern, and great for industrial or minimalist designs. They can also be more cost-effective and quicker to install.

Both types from Nestive are custom-built, fully insulated, and designed for year-round comfort.

The right size garden room depends on how you plan to use it and the space available in your garden. A small office or hobby room may only need around 3m x 2.5m, while a multifunctional studio, gym, or guest space might benefit from 4m x 3m or larger.

Nestive offers three standard sizes in our Silver, Gold, and Platinum packages, but we also create custom dimensions to maximise every inch of your outdoor space.