Garden Rooms & Offices in Cardiff

Tired of working at the kitchen table or struggling to switch off at home? Create the space you’ve been missing — a premium, fully insulated garden rooms in Cardiff designed for work, wellness, and balance in everyday life.

When home feels small, don’t compromise — bring to life the space you’ve longed for. From luxury studios to bespoke wellness spaces, Nestive builds insulated garden rooms in Cardiff, transforming daily life, adding value, and giving you space to thrive.

Do I need planning premission?

Which garden room is right for me?

How do I avoid costly mistakes?

I can finally take calls without the kids wandering in.

"We turned the end of our garden in Swansea into a timber garden office. I can finally take calls without the kids wandering in. Nestive checked whether we needed planning, explained the rules in plain English, and confirmed we were fine under permitted development. They kept us in the loop, turned up when they said they would, and the finish is spot on. Cosy in winter, cool in summer."

Hattie S., Swansea

The Benefits of Having a Garden Room

When choosing a long-term investment for your property in Cardiff, our timber-framed garden rooms offer a blend of premium quality, natural aesthetics, and unmatched longevity.

Bespoke Design Freedom: Essential for varied Cardiff plots, our custom designs perfectly tailor the shape, size, and finish to maximise your available area and complement your home's style.
365-Day Comfort Guaranteed: Coupled with our full insulation specification, timber provides a cosy, condensation-free space, making your retreat reliably warm and useable throughout the South Wales year.
Significant Cardiff Property Uplift: A high-end timber room is seen by local estate agents as a lasting, high-value asset, capable of adding substantial value and giving your property an edge in the competitive Cardiff market.

Ready to explore your options?

Planning Permission for Garden Rooms in Cardiff

Most garden rooms in Cardiff don’t require planning permission, provided they meet Welsh Permitted Development limits — under 2.5m high near a boundary, positioned behind your house, and used personally (as an office, gym, or studio).

If your design is larger, in a front garden, or intended as accommodation, Nestive will manage the process with Cardiff City Council. We handle site checks, paperwork, and communication so your project runs smoothly from day one. Our role is to simplify — so you can focus on how your new space will feel, not the fine print behind it.

How It Works

Our 5-Step Process

We know creating a garden room can feel like a big step. That’s why we’ve designed a simple, stress-free process that takes care of everything — so you can focus on enjoying your new space. From day one, we keep things clear, straightforward, and built around you.

Consultation

We visit your home to listen, advise, and visualise how your garden space can work best.

Planning Checks

We confirm whether permission is needed and handle all council details, giving you total peace of mind.

Design

Our team produces bespoke drawings and 3D visuals — turning ideas into a clear, achievable plan.

Build

Experienced installers construct your garden room with care, quality materials, and minimal disruption.

Aftercare

Every room includes a 10-year structural warranty, plus full guidance on caring for your new space.

Explore Our Projects

Who Is This For?

Homeowners — Add a garden office, gym, guest suite, studio, sauna or bar that blends beautifully with your outdoor space.
Small Businesses — Perfect for salons, therapy rooms, workshops, or creative studios.
Leisure & Hospitality — Ideal for yoga studios, glamping pods, rental spaces, or retreats.

Garden Rooms in Cardiff - Packages & Pricing

Your style, your dimensions, your investment — choose a package as your starting benchmark.

Every garden room in Cardiff is custom-built to your requirements and includes our Core Specification — insulation, double glazing, electrics, flooring, and solid foundations.

Grand 6 x 4m

From £33,523

Ideal for work, wellness or entertaining

Includes our Core Specification

(Insulation, double glazing, electrics, flooring, foundations, 10- year structural warranty)

Signature 4 x 3m

From £22,816

Perfect balance for work, gym or lounge

Includes our Core Specification

(Insulation, double glazing, electrics, flooring, foundations, 10- year structural warranty)

Essential 3 x 2.5m

From £15,764

Well suited to a garden office or studio

Includes our Core Specification

(Insulation, double glazing, electrics, flooring, foundations, 10- year structural warranty)

Upgrades

Upgrades: Add panoramic doors, advanced cladding, decking, or climate control to make your space truly your own.

Need something a little different?

Your garden and lifestyle are one of a kind, and your new space should reflect that. Beyond our standard options, we excel in crafting unique, custom-built designs.

We work with you to align the layout with your exact purpose, maximise sunlight, and ensure every detail, from the dimensions to the door placement, is the perfect fit.

BOOK A FREE DESIGN CALL

Garden Room Ideas

Need inspiration? These are the most popular and creative ways our clients use their timber garden rooms.

Home Office or Studio

A peaceful, inspiring space to work, create, or run your business.

Guest Bedroom with Ensuite

Give visitors their own private, stylish space.

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Garden Sauna

A tranquil retreat for warmth and relaxation

Garden Gym or Wellness Room

A dedicated space for fitness, yoga, or relaxation.

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What’s your vision?

Whatever you need, we can design it — tailored to your space and style.

Book Your Free Design Consultation

Timber Garden Rooms FAQs

Got questions about timber garden rooms? We’ve answered the ones we hear most often.

Question 1: Do I need planning permission for a garden room in?

In most cases, no. Nestive's garden rooms are generally designed to fall within Welsh Permitted Development rights, meaning planning permission is not required. Crucially, the rules in Wales differ slightly from England. We handle all the necessary checks with your local council on your behalf to ensure full compliance before any build begins.

Question 2: What warranty and aftercare do you offer?

We stand by the quality of our craftsmanship with a 10-year structural guarantee for lasting peace of mind. Our aftercare service ensures we walk you through the final details, and we're always on hand if you have any questions once you start using your fantastic new space.

Question 3: Are your garden rooms comfortable to use during the winter?

Absolutely. Every Nestive room is fully insulated to a high residential standard (in the walls, floor, and roof). This quality build ensures your space stays wonderfully warm in winter and cool in summer, guaranteeing comfortable, year-round use regardless of the weather in South Wales.

Question 4: How much value will a high-quality garden room add to my property? Answer

A well-built, high-specification garden room from Nestive is considered a valuable asset. Local property experts agree that a quality, functional room can increase your home's saleability and potentially add between 5% and 15% to its market value, giving you a strong advantage in the local market.

Question 5: How long does it take from the initial consultation to using my new room?

The timeline depends on the design complexity. Once the design is finalised and approved, the on-site build process is designed to be as fast as possible, typically taking a few weeks, with minimal disruption to your home life. We provide a clear, detailed timeline from your first design call.

Question 6: What is the difference between your Timber and Container garden rooms?

Our Timber rooms offer a warm, natural aesthetic with maximum design flexibility. Our Container rooms are built using repurposed shipping containers, offering a fast, cost-effective, and contemporary industrial look, often suited for smaller or urban spaces.