top of page
Modern garden room creating extra space at home

Garden Summerhouses

Modern Summerhouses Designed for More Than Just Summer

The traditional summerhouse has changed.

​

For many homeowners, a summerhouse is no longer just a lightweight timber building used on sunny weekends.

​

With proper insulation, glazing, electrics and a considered design, it can become a genuinely useful garden room for much more of the year.

​

A modern garden summerhouse can be used as:

  • relaxing space

  • home office

  • reading room

  • hobby room

  • art studio

  • garden bar

  • games room

  • family room

  • garden retreat

  • storage combined with leisure space

​

The key is to decide whether you want a simple seasonal building or a properly insulated room designed for regular use.

​

​

What Is a Garden Summerhouse?

 

A summerhouse is a detached garden building primarily designed as a place to sit, relax and enjoy the garden.

​

Traditional versions often include:

  • timber walls

  • glazed doors

  • windows

  • pitched or pent roof

  • simple timber floor

​

Modern summerhouses can go much further.

​

They may include:

  • insulation

  • heating

  • electrics

  • high performance glazing

  • composite or cedar cladding

  • rooflights

  • internal finishes

  • integrated storage

​

This starts to blur the distinction between a summerhouse and a modern garden room.

​

​

Summerhouse or Garden Room?

 

The terms increasingly overlap.

​

A basic summerhouse is often:

  • seasonal

  • lightly insulated or uninsulated

  • simpler internally

​

A modern garden room is more likely to be:

  • fully insulated

  • heated

  • wired for electricity

  • finished internally

  • designed for year round use

​

For many homeowners, the best approach is to combine the character of a summerhouse with the technical performance of a garden room.

​

​

Insulated Summer House

 

An insulated summer house can be much more useful throughout the year.

​

Insulation may be included within the:

  • floor

  • walls

  • roof

​

This can help make the room more comfortable in colder weather and reduce overheating when combined with appropriate glazing and ventilation.

​

A fully insulated design is especially useful where the summerhouse will also be used as a:

  • office

  • studio

  • gym

  • hobby room

​

​

Small Summerhouse

 

A small summerhouse can provide a useful retreat without taking up too much garden space.

​

Compact designs work well for:

  • reading

  • relaxing

  • hobbies

  • single person office use

  • occasional entertaining

​

The design should make efficient use of:

  • glazing

  • seating

  • storage

  • door positions

​

A small room can feel much larger if the glazing is positioned well.

​

​

Small Garden Summerhouse

 

In smaller gardens, the building should not overpower the space.

​

A compact summerhouse positioned carefully can help preserve:

  • lawn

  • planting

  • patio

  • circulation

​

Corner locations can be particularly effective.

​

​

Corner Summer House

 

A corner summer house is a very popular option because it can make use of space that might otherwise be wasted.

​

It can be designed to face diagonally into the garden and create attractive views back towards the house.

​

Benefits include:

  • good use of corners

  • broad garden views

  • more central lawn retained

  • strong visual focal point

​

A corner design can work particularly well with angled glazing.

​

​

Summerhouse Corner Designs

 

Corner designs can be:

  • square

  • angled

  • pentagonal

  • hexagonal

  • L shaped

​

The best option depends on the shape of the garden.

​

​

Wooden Summerhouse

 

Timber remains one of the most popular materials for summerhouses.

​

It provides a natural appearance and works well with garden landscaping.

​

Common finishes include:

  • cedar

  • larch

  • painted timber

  • treated softwood

  • thermowood

​

The exact choice will affect cost and maintenance.

​

​

Composite Summer House

 

Composite cladding is becoming more popular for homeowners who want a lower maintenance finish.

​

Advantages can include:

  • reduced maintenance

  • consistent appearance

  • good weather resistance

  • contemporary design

​

It can work particularly well on modern flat roof or pent roof summerhouses.

​

​

Painted Summerhouses

 

Painted timber can create a more traditional appearance.

​

Popular colours include:

  • soft grey

  • black

  • dark green

  • off white

  • muted blue

​

Painting also gives homeowners more flexibility to coordinate the summerhouse with the main house or garden furniture.

​

​

Summer House Shed

 

A combined summerhouse and shed is one of the most practical options.

​

Instead of building two separate structures, one building can contain:

  • summer room

  • storage section

​

This can work particularly well for:

  • garden tools

  • bikes

  • lawnmowers

  • furniture

  • cushions

  • DIY equipment

​

The external appearance can remain consistent across the whole building.

​

​

Summer House With Storage Shed

 

A separate storage compartment can be added to one side or rear of the summerhouse.

​

The storage area can have its own external access.

​

That keeps:

  • muddy tools

  • bikes

  • equipment

​

away from the main leisure area.

​

​

Summerhouses With Side Shed

 

A side shed is particularly easy to integrate.

​

The main room can have:

  • glazing

  • seating

  • internal finishes

​

while the side store remains simpler.

​

This helps control cost while keeping the building visually coordinated.

​

​

Summerhouse With Storage

 

Not every storage area needs to be a full shed.

​

Built in cupboards can also provide useful space for:

  • cushions

  • games

  • drinks

  • outdoor accessories

  • garden equipment

​

This can be a good option where the garden is small.

APN_GARDEN_ROOMS_p0141#.JPG
38: The Alba
Essential Collection £495 + VAT

A bright minimalist garden office with crisp light finishes and broad glazed doors.

​

View  →

APN_GARDEN_ROOMS_p0361#.JPG
40: The Wren
Essential Collection £495 + VAT

A practical compact garden studio with separate storage and a simple contemporary appearance.

​

View  →

APN_GARDEN_ROOMS_p0131#.JPG
45: The Willow Pod
Essential Collection £495 + VAT

A wonderfully compact garden office providing a dedicated workspace in very little space.

​

View  →

Large Summerhouse


A large summerhouse can become a serious multifunction room.
 

Possible uses include:

  • family lounge

  • garden bar

  • entertainment room

  • home office

  • games room

  • hobby studio

  • combined seating and dining room
     

Larger designs can also include:

  • WC

  • kitchenette

  • storage

  • covered terrace

     

10x8 Summerhouse


A 10x8 summerhouse is a popular traditional size.
 

This gives roughly:

80 sq ft / 7.4m²

before allowing for wall thickness.
 

It can suit:

  • seating

  • reading

  • hobbies

  • compact office use
     

For a year round room, insulation thickness should be considered because it reduces the finished internal dimensions.

 

8x6 Summerhouse


An 8x6 summerhouse is compact.
 

It can work well as:

  • reading room

  • small retreat

  • single desk office

  • hobby space
     

Furniture planning is particularly important at this size.

 

6x8 Summerhouse


This is essentially the same floor area as an 8x6 room, but orientation can affect how the room feels.
 

A wider frontage may suit:

  • French doors

  • larger glazing
     

while a deeper plan may suit:

  • desk arrangements

  • storage

     

8x8 Summerhouse


An 8x8 design provides a square layout.
 

This can be particularly useful for:

  • corner seating

  • central table

  • hobby use

  • compact studio

     

12x8 Summerhouse


A 12x8 summerhouse provides noticeably more flexibility.
 

It can accommodate:

  • sofas

  • office area

  • storage

  • dining table

  • garden bar
     

This is the point where a summerhouse can start to feel like a proper additional room.

 

Hexagonal Summerhouse


Hexagonal and octagonal summerhouses have a more traditional appearance.
 

They often create:

  • wide garden views

  • multiple windows

  • strong focal point
     

These designs suit gardens where the building is intended to be decorative as well as functional.

 

Octagonal Summer House


An octagonal summerhouse can work particularly well as:

  • reading retreat

  • tea room

  • garden lounge

  • traditional feature building
     

They are generally less efficient for large furniture than rectangular rooms, but they can be very attractive.

 

Outdoor Summer House


An outdoor summer house can be designed to open directly onto the garden.
 

Features might include:

  • French doors

  • sliding doors

  • covered veranda

  • terrace

  • canopy

  • outdoor seating
     

This creates a stronger relationship between inside and outside.

 

Summerhouse Installation


Some homeowners want a complete installed summerhouse.
 

Others want to take more control of the project.
 

APN Garden Rooms is focused on the second route.
 

You can start with a professional design and then choose how the room is built.
 

That might mean:

  • self build

  • local builder

  • separate trades

  • managed DIY

     

Summer Houses for Sale


Many summerhouses are sold as complete kits or installed products.
 

Before comparing prices, check whether the product includes:

  • foundation

  • insulation

  • glazing

  • electrics

  • internal finishes

  • roof covering

  • installation

  • VAT
     

The cheapest headline price can be misleading if major items are excluded.

 

Cheap Summer Houses


Low cost products may be suitable for seasonal use.
 

But if the room is intended to be used all year, it is important to consider:

  • insulation

  • glazing

  • floor construction

  • weatherproofing

  • roof

  • heating
     

A cheap shell can become expensive if it later needs substantial upgrading.

 

Fully Insulated Summer Houses


A fully insulated summerhouse can effectively become a modern garden room.
 

This can make it useful for:

  • work

  • hobbies

  • leisure

  • entertaining
     

throughout much more of the year.

 

Summerhouse With Electrics


Electricity can greatly expand how the room is used.
 

Possible requirements include:

  • lighting

  • sockets

  • heating

  • fridge

  • television

  • internet

  • external lighting
     

Electrics should be planned before internal finishes are completed.

 

Summerhouse With Heating


A properly insulated summerhouse may only need modest heating.
 

Possible options include:

  • electric panel heater

  • underfloor heating

  • air conditioning with heating
     

The system should reflect the room size and how often it is used.

 

Summerhouse WiFi


For a summerhouse used as an office or entertainment room, WiFi may also be important.
 

Options include:

  • Ethernet

  • mesh WiFi

  • extender

  • dedicated access point

  • Starlink or separate internet connection where appropriate

     

Planning Permission for Summerhouses


Many summerhouses may fall within Permitted Development rights, provided the relevant rules are satisfied.
 

Key factors include:

  • height

  • position

  • boundaries

  • garden coverage

  • property type

  • intended use
     

A summerhouse used as normal incidental garden accommodation is different from one intended as a separate dwelling.

 

Building Regulations


Small detached summerhouses may be exempt from Building Regulations in certain circumstances.
 

However, the position depends on:

  • floor area

  • proximity to boundaries

  • construction

  • sleeping accommodation

  • services
     

An insulated, serviced garden room should always be considered properly rather than assumed to be exempt.

 

Summerhouse Roof Options


Common roof styles include:

  • apex

  • dual pitched

  • pent

  • flat

  • hipped
     

The roof changes both the appearance and the internal ceiling height.

 

Apex Summerhouse


An apex roof gives a more traditional appearance.
 

It can create:

  • vaulted ceiling

  • greater internal volume

  • opportunity for rooflights

     

Pent Summerhouse


A pent roof slopes in one direction.
 

It can create a more contemporary appearance and may work well near boundaries.

 

Summerhouse Doors and Windows


The glazing should reflect how the room is used.
 

Options include:

  • French doors

  • sliding doors

  • fixed windows

  • opening windows

  • corner glazing
     

A leisure room may benefit from more glass, while an office may need more solid wall space.

 

Summerhouse Cladding


Possible finishes include:

  • cedar

  • larch

  • painted timber

  • composite

  • fibre cement
     

The cladding can transform a traditional summerhouse into something much more contemporary.

 

Traditional or Contemporary?


There is no need for a summerhouse to look old fashioned.
 

A modern interpretation can combine:

  • clean lines

  • flat or low pitch roof

  • vertical cladding

  • large glazing

  • dark frames
     

while still retaining the relaxed garden retreat concept.

 

Adapt an APN Garden Room Design


Many APN Garden Room designs can be adapted into a modern summerhouse.
 

Possible changes include:

  • more glazing

  • pitched roof

  • veranda

  • storage shed

  • corner layout

  • French doors

  • lighter internal finishes

  • covered seating
     

This gives you the flexibility to create something between a traditional summerhouse and a modern insulated garden room.

 

Summerhouse Plans


Starting with proper plans allows you to decide:

  • size

  • roof

  • glazing

  • storage

  • insulation

  • cladding

  • internal layout
     

before builders start pricing the work.
 

It also makes quotations easier to compare.

 

Build It Yourself or Use Local Trades


You can decide how involved you want to be.
 

Some homeowners may:

  • build the timber frame

  • install insulation

  • fit cladding

  • decorate
     

Others may simply manage:

  • groundworker

  • carpenter

  • electrician

  • roofer
     

The APN plan pack provides the starting point.

 

Potential Savings of 40 to 50%


Depending on the design, location, specification and how the project is managed, it may be possible to reduce the overall cost by around 40 to 50% compared with some equivalent turnkey garden room packages.
 

The aim is not to build a cheaper room.
 

It is to spend more of your budget on the room itself and less on the layers surrounding it.
 

That could mean:

  • better glazing

  • better insulation

  • better cladding

  • better internal finishes

  • a larger room

  • more money left for landscaping or furniture

     

Start With the Design


The first step is choosing the right garden room.
 

From there, you can:

  • use the design as shown

  • adapt it to suit your garden

  • obtain planning advice if required

  • add Building Regulations information where needed

  • request builder quotations

  • source products and materials

  • control the final build cost
     

Choose the design. Control the build. Keep more of the budget.
 

Browse Our Garden Room Designs

Explore the APN Garden Rooms collections and find the design that works for your space, your lifestyle and your budget.
 

bottom of page