Big savings in our earlybird sale Earlybird sale | Ex display sale Ex display | Visit our showrooms Showrooms | reviews on ★ Trustpilot Reviews Take advantage of our Earlybird delivery discount and save £££s!
Leisure Buildings Logo
Quick Product Finder 01483 237550 My Account 0 View Basket
  • Home
  • Garden Sheds
        • CATEGORIES
          • Painted Sheds
          • Insulated Sheds
          • Potting Sheds
          • Combination Sheds
          • Wooden Greenhouses
          • Corner Sheds
          • Bike Sheds
          • Metal Sheds
          • Concrete Sheds
          • Man Caves
          • Motorbike Sheds
        • POPULAR SIZES
          • 6 x 4
          • 8 x 5
          • 8 x 6
          • 8 x 7
          • 8 x 8
          • 9 x 5
          • 9 x 8
          • 10 x 6
          • 10 x 8
          • 11 x 8
          • 12 x 6
          • 12 x 7
          • 12 x 8
          • 12 x 10
          • 14 x 6
          • 14 x 8
          • 14 x 10
          • 16 x 6
          • 16 x 8
          • 18 x 6
          • 18 x 8
          • 18 x 10
          • 20 x 8
          • 20 x 10
          • 20 x 12
  • Summerhouses
        • CATEGORIES
          • All Summerhouses
          • Insulated Summerhouses
          • Painted Summerhouse
          • Summerhouse with Shed
          • Corner Summerhouses
        • POPULAR SIZES
          • 7 x 5
          • 7 x 7
          • 8 x 6
          • 8 x 7
          • 8 x 8
          • 9 x 9
          • 10 x 6
          • 10 x 7
          • 10 x 8
          • 10 x 10
          • 12 x 6
          • 12 x 8
          • 12 x 10
          • 12 x 12
          • 14 x 8
          • 14 x 10
          • 16 x 8
          • 16 x 10
          • 18 x 12
          • 20 x 8
          • 20 x 12
  • Garden Rooms
        • GARDEN OFFICES
          • All Garden Offices
          • Insulated Garden Offices
        • GARDEN ROOMS
          • All Garden Rooms
          • Insulated Garden Rooms
          • Painted Garden Rooms
          • Corner Garden Rooms
          • Garden Room with Side Shed
          • Garden Games Rooms
        • POPULAR SIZES
          • 8 x 6
          • 8 x 8
          • 10 x 6
          • 10 x 8
          • 12 x 8
          • 12 x 10
          • 12 x 12
          • 16 x 16
  • Workshops
        • CATEGORIES
          • All Workshops
          • Insulated Buildings
          • Heavy Duty Workshops
          • Sectional Buildings
        • POPULAR SIZES
          • 12 x 8
          • 16 x 8
          • 20 x 8
  • Garages
        • Concrete Garages
        • Wooden Garages
        • Double Concrete Garages
        • Double Wooden Garages
        • Garden Garages
  • Log Cabins
        • CATEGORIES
          • All Log Cabins
          • Insulated Log Cabins
          • Multi Room Log Cabins
          • Clockhouse Log Cabins
          • Corner Log Cabins
          • Painted Log Cabins
          • All Standard Log Cabin Sizes
        • POPULAR SIZES
          • 8 x 8
          • 9 x 9
          • 10 x 8
          • 12 x 8
          • 12 x 10
          • 12 x 12
          • 14 x 8
          • 14 x 10
          • 16 x 8
          • 16 x 10
          • 20 x 10
  • More Information
        • Image Gallery
        • How To Guides
        • Top Buying Tips
        • Base Building
        • Other Services
        • Brochures
        • Price Lists
        • Delivery Areas
        • Delivery Times
  • Contact
Free UK Shipping
Visit Showrooms
Trusted UK Vendor
Fitting Option

Home » Summer Houses » Summerhouses Portsmouth

Summer Houses Portsmouth
Free Assembly Included

Looking for quality summer houses in Portsmouth? I’m Robin Antill, founder of 1st Choice Leisure Buildings, and I’ve worked with timber garden buildings since starting Marina Sheds in 1979. Our Portsmouth summerhouses include traditional, contemporary, corner, painted and insulated designs for relaxing, entertaining, hobbies or working from home.

My advice is to compare the timber, framing, floor, roof, glazing and overall construction rather than choosing on appearance or price alone. Browse our summer houses below, with professional assembly available on applicable principal ranges, subject to delivery area, suitable access and base requirements.

A modern summer building. Perfect in Portsmouth for a summer room or relaxation space.

Building Type

Cladding

Roof Type

Sizes (Any Size Made)

Assembly

Height

Insulation Options

Showing all 14 results

  • Special Deals A small grey garden building with white trim and doors. The building has a garden path leading to it.
    From £3928
    8x6 to 28x16
    2.4 x 1.8m to 8.4 x 4.8m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Winchester Apex

    Platinum Winchester Apex

    View Product
  • Special Deals A wooden garden summerhouse with double doors and windows, surrounded by a garden.
    From £3928
    8x6 to 28x16
    2.4 x 1.8m to 8.4 x 4.8m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Winchester Pent

    Platinum Winchester Pent

    View Product
  • Special Deals A wooden garden shed with double doors and windows. Made in Britain.
    From £3928
    8x6 to 28x16
    2.4 x 1.8m to 8.4 x 4.8m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Winchester Transverse

    Winchester Transverse

    View Product
  • Special Deals A dark grey pentagonal summer house with open doors
    From £3249
    6x6 to 10x10
    1.8 x 1.8m to 3.0 x 3.0m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Bursledon Corner Summer...

    Platinum Bursledon Corner Summer...

    View Product
  • Special Deals A green wooden summerhouse with white trim and doors. A garden shed with large windows.
    From £3399
    8x6 to 16x12
    2.4 x 1.8m to 4.8 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Kingclere Apex

    Platinum Kingclere Apex

    View Product
  • Special Deals A green garden shed with large windows and doors. Made in Britain
    From £4931
    8x6 to 16x12
    2.4 x 1.8m to 4.8 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Fully Insulated

    Platinum Pent Odiham

    Platinum Pent Odiham

    View Product
  • Special Deals A green garden summerhouse with white trim and doors open to show the interior. The shed is surrounded by a beautiful garden.
    From £4931
    8x6 to 16x12
    2.4 x 1.8m to 4.8 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Fully Insulated

    Platinum Apex Fleet

    Platinum Apex Fleet

    View Product
  • Special Deals A garden room with double doors and a window, empty interior.
    From £3825
    6x6 to 10x10
    1.8 x 1.8m to 3.0 x 3.0m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Hamble Corner

    Platinum Hamble Corner

    View Product
  • Special Deals A green garden shed with open doors and windows. Made in Britain.
    From £3415
    8x6 to 16x12
    2.4 x 1.8m to 4.8 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Twyford Pent

    Platinum Twyford Pent

    View Product
  • Special Deals A wooden garden summerhouse with double doors and windows in a garden. The shed has a brown roof.
    From £3589
    8x6 to 16x14
    2.4 x 1.8m to 4.8 x 4.2m
    Free Assembly
    Colour Paint Finish Option
    Full Insulation Option

    Platinum Highclere Apex

    Platinum Highclere Apex

    View Product
  • Special Deals A dark grey garden shed with a double door and two windows, set in a beautiful garden with flowers and trees.
    From £7869
    8x6 to 20x12
    2.4 x 1.8m to 6.0 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Fully Insulated

    Royal Bletchley Garden Room

    Royal Bletchley Garden Room

    View Product
  • Special Deals A small yellow garden shed with black trim and large glass doors and windows. The shed is surrounded by lush greenery and flowers.
    From £7859
    8x6 to 20x12
    2.4 x 1.8m to 6.0 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Fully Insulated

    Royal Buckingham Garden Room

    Royal Buckingham Garden Room

    View Product
  • Special Deals A garden shed with cream-coloured walls and double doors.
    From £7269
    8x6 to 20x12
    2.4 x 1.8m to 6.0 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Fully Insulated

    Royal Denham Garden Room

    Royal Denham Garden Room

    View Product
  • Special Deals A blue garden shed with wooden steps and glass doors. A garden surrounding the shed.
    From £7849
    8x6 to 20x12
    2.4 x 1.8m to 6.0 x 3.6m
    Free Assembly
    Colour Paint Finish Option
    Fully Insulated

    Royal Marlow Garden Room

    Royal Marlow Garden Room

    View Product

Portsmouth Summer Houses at a Glance

Construction: Quality redwood timber · Sizes: From compact 5 x 7ft models to large 28 x 16ft summer houses · Glazing: Toughened glass as standard · Floors & roofs: Timber construction · Styles: Apex, pent, corner, contemporary and traditional designs.

Uses: Garden retreat, entertaining space, hobby room or relaxing summer room · Insulation: Insulated and fully insulated options available · Installation: Free assembly on our Royal, Platinum and Diamond summer house ranges · Bases: Base-building service available · Customisation: Bespoke sizes, layouts, door and window positions and coloured paint finishes available · Delivery area: Portsmouth, Cosham, Waterlooville, Gosport, Fareham, Portchester and surrounding Hampshire areas.

See before you buy: Full-size summer houses are on display at our Surrey show site near Guildford, Woking and Ripley. Need advice? Our experienced team can help with summer house size, specification, insulation, base requirements, installation and bespoke options before you order.

View More Summerhouse Images
Click on images below to see larger versions of summerhouses
image of Diamond Arlington Summer building
image of Diamond Ashington sun room
image of Diamind Bolney summer building
image of Diamond Bracklesham octagonal building
Click on images below to see larger versions of summerhouses
image of Diamond Eastbourne Summer building
image of Diamond Keymer apex or pent
image of Diamond Washington summer building
image of Diamond Worthing corner building
l
Click on images below to see larger versions of summerhouses
image of Platinum corner building
image of Platinum corner summerhouse
image of Platinum Fleet Apex Insulated Luxury summerhouse
image of Platinum Hamble corner building
Click on images below to see larger versions of summerhouses
image of Platinum Highclere summer building
image of Platinum Kingclere summerhouse
image of Platinum Norton Octagonal summerhouse
image of Platinum Pent Odiham Insulated summerhouse
Click on images below to see larger versions of summerhouses
image of Platinum Twyford summer building
image of Platinum Winchester Georgian summerhouse
image of Platinum Winchester pent summerhouse
image of Summerhouse with side shed
Click on images below to see larger versions of sumerhouse shed combos
image of apex summerhouse with side shed
image of Bespoke pained summer building shed
image of bespoke summerohuse shed store
image of combined made to measure shed summerhouse
Click on images below to see larger versions of combination garden rooms with shed
Choose from a large range of Sadolin colours and make your new Diamond painted summerhouses special.
We recommend OPTIONAL Demidekk Ultimate log cabin paint range which can be colour matched to suit. See examples in our photo gallery.
Image gallery of painted summerhouses - 1st Choice Leisure Buildings
Royal treatment chart available for pre-painted summ houses - 1st Choice Leisure Buildings
Image gallery of painted summerhouses - 1st Choice Leisure Buildings
Royal treatment chart available for pre-painted summ houses - 1st Choice Leisure Buildings
Please note that all colour shown are indicative only and will vary depending upon the light on the day the photo was taken. Additionally all screens will display the image differently. If exact colour is essential then please order a sample pot.
NEED HELP WITH PRICES or DESIGNS? THEN CLICK HERE FOR OUR ONLINE QUOTE FORM


NEED HELP WITH PRICES or DESIGNS? THEN CLICK HERE FOR OUR ONLINE QUOTE FORM

Choosing the Right Summer House for Your Portsmouth Garden

After working with garden buildings since 1979, I have learnt that choosing the right summerhouse starts with deciding exactly what you want the building to do. Somewhere to relax and enjoy the garden during warmer weather has very different requirements from a home office, hobby room, studio or building you intend to use regularly throughout the year. If you are comparing summer houses in Portsmouth, decide on the intended use first and then compare the size, construction and specification needed to suit it.

I also recommend measuring your available garden space carefully before ordering. Mark the proposed footprint on the ground and allow enough space around the building for installation and future maintenance. Think about where the doors will open, which direction the glazing will face and what you will see when sitting inside. Good positioning can make a considerable difference to how much you enjoy your summerhouse.

What Should You Look For When Buying a Summer House?

My advice is to compare construction rather than headline price alone. Two summerhouses can look remarkably similar in photographs but be quite different when you examine the timber, framing, wall construction, floor, roof, doors and glazing. These details often explain why one building costs more than another and whether the additional specification is worthwhile for the way you intend to use it.

It is also important to establish exactly what is included. Professional assembly is included or available on applicable principal ranges, subject to the individual building, delivery area, suitable access and base requirements. Check the individual product specification before ordering so you understand precisely what you are buying and what preparation is required.

Which Type of Summer House Is Best for Your Portsmouth Garden?

Traditional Summer Houses

A traditional timber summerhouse can be ideal if you mainly want somewhere attractive to relax, read, entertain friends or enjoy the garden during warmer weather. You can compare the different styles, sizes and specifications in our complete summer house range.

Insulated Summer Houses

If you intend to work from the building, use it as a studio or hobby room, or spend significant time inside during colder months, insulation becomes much more important. Our insulated summer houses include options designed for customers wanting greater comfort and more regular use throughout the year.

Corner Summer Houses

A corner summerhouse can work particularly well if you want to make use of an otherwise awkward part of the garden while retaining more of the central lawn or patio. The angled frontage can also provide attractive views across the garden. Browse our corner summer houses if this layout suits your Portsmouth garden.

Painted Summer Houses

A painted summerhouse can complement your home, fencing, planting and garden furniture and help the building feel more integrated with its surroundings. Our painted summer houses include a choice of designs and colour options depending on the individual range.

Summer Houses With Shed Storage

If you need somewhere attractive to relax but do not want to lose useful garden storage, a combination design can be particularly practical. Our summer houses with shed storage combine leisure space with a separate area for tools, bicycles, garden furniture or other equipment.

Why My Experience With Garden Buildings Matters

I’m Robin Antill, founder of 1st Choice Leisure Buildings. I left school at 15 and started my first garden building business in 1979, trading as Marina Sheds. Those early years gave me practical experience of timber buildings. They taught me that the specification behind a building matters considerably more than an attractive photograph or a cheap headline price.

I sold Marina Sheds in 1990, although unfortunately I did not receive all the money I was due from the sale. It was a difficult business lesson, but it certainly did not end my involvement with garden buildings.

In 1992 we expanded beyond sheds by adding summerhouses, garages, garden rooms and log cabins. That broader direction led to a name change to Titan Garden Buildings. My son Craig joined me in 1992 after studying carpentry at Guildford College from 1990, bringing practical woodworking knowledge and a strong understanding of timber construction into the business.

We sold Titan Garden Buildings in 1998. In 2000, Craig and I decided that rather than manufacture everything ourselves, we would retail quality garden buildings from selected manufacturers. That decision led to the formation of 1st Choice Leisure Buildings and allowed us to offer customers different manufacturers, specifications and price points rather than trying to make one range suitable for everybody.

Today Craig runs the day-to-day business, and I am there to support him and the team as required. More than four decades around garden buildings has taught me to understand what somebody wants from their building first, explain the differences clearly and help them choose an appropriate specification rather than automatically recommending either the cheapest or most expensive option.

Can You See Our Summer Houses Before Buying?

Yes, and whenever practical I recommend doing so. Photographs and technical specifications are useful, but they cannot properly show the feel of the floor, the strength of the framing, the construction of the doors, internal headroom or the overall quality of a garden building. Seeing representative buildings at full size makes these differences much easier to understand.

Customers from Portsmouth are welcome to visit our Surrey garden building display site at Sutton Green, between Guildford, Woking and Ripley. We appreciate that this involves travelling from Portsmouth, but seeing representative buildings before making a substantial purchase can be worthwhile if you want to compare construction and specifications in person.

Summer Houses Portsmouth – Quick Answers

Do You Supply Summer Houses in Portsmouth?

Yes. We supply a wide selection of summer houses to customers in Portsmouth and surrounding areas, including traditional, contemporary, corner, painted and insulated designs. Professional assembly is included or available on applicable principal ranges, subject to the individual building, delivery area, suitable access and base requirements.

What Size Summer House Should I Choose?

Choose a size that provides enough usable internal space without overwhelming your garden. Mark the proposed dimensions on the ground before ordering and consider furniture, movement inside the building, door opening, installation access and future maintenance. The largest summerhouse that physically fits is not automatically the best choice.

Do I Need an Insulated Summer House?

That depends on how you intend to use it. A conventional timber summerhouse can be ideal for relaxing and entertaining during warmer weather. If you plan to work inside regularly, use it in colder periods, or want greater comfort for more of the year, an insulated model is usually worth considering.

Can I Order a Bespoke Summer House in Portsmouth?

Bespoke options are available on selected ranges. Depending on the particular manufacturer and model, alterations may be possible to the size, doors, windows, layout and other features. This can be especially useful if your garden has an awkward available space or you have a particular internal arrangement in mind.

Are Your Summer Houses Professionally Assembled?

Professional assembly is included or available on applicable principal ranges, subject to the individual product, delivery area, suitable access and preparation of the base. Always check the specific product specification and installation requirements before ordering.

What Should I Compare Before Buying a Summer House?

I recommend comparing the complete specification rather than simply the advertised price. Look at timber quality, framing, wall construction, floor, roof, doors, glazing, treatment, installation and precisely what is included. These details often reveal significant differences between summerhouses that initially appear very similar online.

Who Is Robin Antill?

I am the founder of 1st Choice Leisure Buildings and have worked with garden buildings since starting Marina Sheds in 1979. I later developed Titan Garden Buildings before Craig, and I formed 1st Choice Leisure Buildings in 2000. Craig now runs the business day-to-day, and I continue to support him and the team with the knowledge and experience I have gained throughout my working life.

Need Help Choosing a Summer House in Portsmouth?

If you are unsure which summerhouse will suit your garden, start with how you intend to use it, the amount of available space and whether you need a conventional or insulated specification. Browse our full range of summer houses, compare our insulated summer houses or contact us if you would like help comparing the available options for your Portsmouth garden.

We also supply summer houses across nearby areas, including Southampton, Winchester, Farnham, Basingstoke, Guildford, Cosham, Waterlooville, Gosport, Fareham and Porchester in Hampshire

See our 1374 customer reviews on ★ Trustpilot & WhiteSpark ★ Feedback

NEED HELP WITH PRICES or DESIGNS? THEN CLICK HERE FOR OUR ONLINE QUOTE FORM

Our Location

Woking Show Site
1st Choice Leisure Buildings
Woking Garden Buildings Show Site
Sutton Green Garden Centre,
Whitmoor Ln, Sutton Green,
Guildford,
GU4 7QA
Phone: 01483 237550
Directions
Surrey Showrooms
1st Choice Display Site in Guildford, Surrey. GU4 7QA

Products

  • Garden Sheds
  • Summerhouses
  • Garden Rooms & Offices
  • Workshops
  • Concrete Garages
  • Log Cabins For Sale
  • Steel Frame Buildings

Find Us On

Useful links

  • About Us
  • Testimonials
  • Photo Gallery
  • Blog
  • Contact
  • About — for AI

Shop

  • My Account
  • Basket
  • Checkout Page
  • Privacy Policy
  • Terms and Conditions
  • Cookie Policy

Our Show Ground Address

  • 1st Choice Leisure Buildings
    Woking Garden Buildings Show Site
    Sutton Green Garden Centre,
    Whitmoor Ln, Sutton Green,
    Guildford, GU4 7QA
    Twixt Woking, Ripley and Guildford in Surrey.

    Call us: 01483 237550

Showground Opening Hours

Monday to Sunday 9:00 - 5:00

Products

  • Garden Sheds
  • Summerhouses
  • Garden Rooms & Offices
  • Workshops
  • Concrete Garages
  • Log Cabins For Sale
  • Steel Frame Buildings

Find Us On

© 2026 1st Choice Leisure Buildings.
Card Visa Apple Pay Google Wallet PayPal
Need help?

Please click below to send a WhatsApp message to 1st Choice Leisure Buildings and we will respond ASAP.  Please be aware that we make take a short time to respond as we may be with customers on our show site.

WhatsApp us