How to Choose the Right Outdoor Building for Your Garden
A complete guide from Nest Treehouses
Your garden has the potential to be so much more than a lawn and a few borders. With the right outdoor building, it can become a place to work, relax, play, create, or simply escape for a moment of peace. But with so many options — garden rooms, cabins, pergolas, treehouses, studios, shelters, and more — it can be hard to know which structure is right for you.
At Nest Treehouses, we design and build bespoke outdoor buildings across the UK. Over the years, we’ve helped families, homeowners, schools, and commercial clients transform their outdoor spaces with structures that feel natural, beautiful, and perfectly suited to their needs.
This guide will help you understand the different types of outdoor buildings, what they’re best for, and how to choose the right one for your garden.
⭐ Step 1: Decide What You Want the Space For
Before you think about materials or design, the most important question is:
“What do I want this space to do?”
Your answer will shape everything that follows.
Here are the most common uses — and the best structures for each.
🧑💻 1. A Space to Work (Garden Office)
If you work from home, a garden office is often the perfect solution.
Best choice: Insulated garden room Why:
Comfortable year‑round
Quiet and private
Separate from the house
Professional environment
Adds value to your home
Garden offices can be minimalist, modern, cosy, or architecturally striking — whatever suits your style.
🧒 2. A Space for Children to Play (Treehouse or Play Structure)
If you want to create a magical space for children, a treehouse or climbing structure is ideal.
Best choice: Treehouse or adventure play structure Why:
Encourages imagination
Gets children outdoors
Can include slides, rope bridges, climbing walls
Creates a sense of adventure
We design these with safety, durability, and age‑appropriate features in mind.
🧘 3. A Space to Relax (Cabin or Garden Retreat)
If you want somewhere peaceful to unwind, read, or enjoy the garden, a small cabin or retreat is perfect.
Best choice: Cabin or insulated garden room Why:
Comfortable in all seasons
Can include soft lighting, seating, and glazing
Feels like a sanctuary
Works beautifully in woodland or garden settings
These spaces often become the most loved part of the garden.
🎨 4. A Space for Hobbies (Studio or Workshop)
Whether you’re an artist, musician, maker, or hobbyist, a dedicated space can make all the difference.
Best choice: Garden studio Why:
Customisable layout
Natural light options
Durable flooring
Storage solutions
Soundproofing (if needed)
Studios can be designed for painting, pottery, music, crafts, or anything else you love.
🏡 5. A Space for Guests (Cabin or Treehouse Accommodation)
If you want to host friends or family — or create a rental opportunity — a cabin or guest treehouse is ideal.
Best choice: Insulated cabin or accommodation treehouse Why:
Comfortable and private
Can include bathrooms and kitchenettes
Creates a memorable experience
Adds value and income potential
These structures can be simple or luxurious depending on your goals.
🍃 6. A Space for Outdoor Living (Pergola or Shelter)
If you want to enjoy your garden more often, an outdoor shelter or pergola can transform your space.
Best choice: Pergola, gazebo, or timber shelter Why:
Provides shade and weather protection
Perfect for dining or lounging
Can include lighting, heating, or outdoor kitchens
Beautiful focal point for the garden
These structures extend your living space into the outdoors.
⭐ Step 2: Consider Your Garden’s Size and Shape
Your garden’s layout plays a big role in choosing the right structure.
Here’s what to think about.
📏 1. Small Gardens
Best options:
Compact garden rooms
Small treehouses
Corner studios
Slimline pergolas
Focus on structures that maximise space without overwhelming the garden.
🌿 2. Medium Gardens
Best options:
Garden offices
Cabins
Multi‑use rooms
Play structures
You have room to be creative with layout and design.
🌳 3. Large Gardens or Woodland
Best options:
Treehouses
Cabins
Multi‑room structures
Large pergolas
Outdoor kitchens
Commercial‑grade play areas
Larger gardens allow for more ambitious designs and multi‑zone layouts.
⭐ Step 3: Think About Style and Aesthetics
Your outdoor building should complement your home and garden.
Here are the most popular styles.
🌲 1. Natural Timber Aesthetic
Perfect for:
Woodland settings
Rustic gardens
Cabins
Materials:
Cedar
Larch
Douglas Fir
Cedar shingles
This style blends beautifully into nature.
🏡 2. Contemporary Modern
Perfect for:
Garden offices
Studios
Minimalist homes
Features:
Clean lines
Large glazing
Composite cladding
Metal roofing
This style feels sleek and architectural.
🧚 3. Whimsical or Playful
Perfect for:
Children’s treehouses
Play structures
Themed builds
Features:
Curved shapes
Rope bridges
Secret doors
Colourful details
These designs spark imagination and joy.
🧘 4. Cosy and Cabin‑Like
Perfect for:
Retreats
Guest spaces
Woodland cabins
Features:
Warm timber interiors
Soft lighting
Natural materials
These spaces feel peaceful and inviting.
⭐ Step 4: Understand Planning Permission Requirements
Planning permission depends on the type of structure.
Here’s a quick guide.
📝 Garden Rooms
Often don’t require planning permission if:
Under 2.5m high (near boundaries)
Not used as self‑contained accommodation
Behind the front elevation
📝 Cabins
May require planning permission if:
Large
Used for accommodation
In a conservation area
📝 Treehouses
Often do require planning permission, especially if:
Elevated
Visible to neighbours
Used for accommodation
In woodland or protected areas
📝 Pergolas and Shelters
Usually fall under permitted development unless:
Very large
Close to boundaries
In conservation areas
We can advise you based on your site and your goals.
⭐ Step 5: Choose the Right Materials
Materials affect durability, appearance, and maintenance.
We recommend:
Cedar or larch cladding
Beautiful, natural, and long‑lasting.
Douglas Fir structure
Strong and stable.
EPDM or cedar shingle roofing
Weatherproof and durable.
Stainless steel fixings
Rust‑proof and safe.
High‑performance insulation
Essential for year‑round use.
Choosing the right materials ensures your building stays beautiful for years.
⭐ Step 6: Think About Long‑Term Use
Your outdoor building should grow with you.
Ask yourself:
Will I still want this in 5–10 years?
Could the space be used for something else later?
Do I want a multi‑purpose room?
Should it be insulated for year‑round use?
We often design flexible spaces that can evolve over time.
⭐ Step 7: Consider Your Budget
Here are typical price ranges:
Garden rooms: £15,000–£45,000
Cabins: £25,000–£60,000+
Treehouses: £25,000–£150,000+
Play structures: £5,000–£40,000
Pergolas/shelters: £3,000–£20,000
We design to suit your budget while maintaining quality and craftsmanship.
⭐ Step 8: Work With Your Garden, Not Against It
The best outdoor buildings feel like they belong.
We design with:
Natural light
Trees
Views
Privacy
Wind direction
Ground levels
A well‑placed structure enhances your garden rather than dominating it.