20% Deposit
- Installed
Swallow 8'-9 x 21'-11  T-Shaped Swan
Swallow 8'-9 x 21'-11  T-Shaped SwanSwallow 8'-9 x 21'-11  T-Shaped SwanSwallow 8'-9 x 21'-11  T-Shaped Swan
Swallow 8'-9 x 21'-11  T-Shaped SwanSwallow 8'-9 x 21'-11  T-Shaped SwanSwallow 8'-9 x 21'-11  T-Shaped Swan

Swallow 8'-9 x 21'-11 T-Shaped Swan

Select required accessories from the dropdowns.
Full accessory information lower down page
Boarded Or Dwarf Wall:  
Porch Extension:  
Extra Staging:  
High Shelf:  
Side Vents:  
Ornate Handle:  
Extra Double Doors:  
4ft Benches:  
6ft Benches:  
Sparrow 4'5 x 2'1:  
Wren 4'5 x 3'4:  
Cresting and Finials:  
use code 15off at checkout
*orders £250+  *Excludes Swallow

Main photo shows a 8x21 with extended 4ft5" porch on a dwarf wall.

Payment Options.
1- Choose to pay the full balance with your order via our secure checkout.
2- Pay 20% deposit only to us with the balance payable to Swallow on installation. Choose the "Wooden Deposit" option when you get to the payment options page in the checkout process.  Nothing to pay at this moment.

Stylish wooden orangery style greenhouse from Swallow, the Swan is the largest in their range of T-Shaped glass houses and is an impressive looking greenhouse that would compliment any garden. Built to a very high standard and delivered and installed in your garden at the same time by Swallow for a hassle free purchase.

The top of the "T" is 8x21 with the entrance porch protruding in the middle at 8x2 (can be extended) with inward opening double doors and included return staging to both sides of the porch. All sizes are nominal, please see the "Dimensions" tab above for exact measurements.

Swallow T-Shaped Swan 8x21 greenhouses are traditionally built using Thermowood glazing bars of a sturdy 58mm x 32mm thickness. Thermowood is a heat treated timber that is extra strong and durable with a consistent attractive finish. Some of the features that are included in the price are:-
  • Eight roof vents as standard, each with an automatic opener
  • Front Thermowood returned staging on both sides of porch
  • Long pane toughened glass
  • 20mm PVC damp proof barrier
  • Full guttering system
  • Delivered and installed by Swallow

Swallow greenhouses have a high eaves height for more comfortable working space, are boarded around the bottom (can be modified to a dwarf wall) and can be purchased with the natural wood finish or you can choose to have your greenhouse painted in a choice of attractive colours. See Below.

Our View
Excellent large feature orangery style greenhouse for your garden! the Swallow 8x21 Swan is big and strong with lots of standard features. Installed for free by Swallow!

Roof Windows:  8 Standard
Autovents:  8 Bayliss
Staging Included:  2x Porch Returned
Toughened Glass:  Safety & Looks
Thermowood Frame:  Long Lasting & Attractive
Guttering:  Full System
Large Double Hinged Doors:  Inward Opening
Aluminium Door Handles:  Lockable
Glazing Slid Into Groove:  Silicone Sealed
Turned Apex Finial:  Classic Look
Machined Timber Capping:  Ridge & Roof Vents
20mm PVC Damp Barrier:  Keeps Wood Above Standing Water
Delivered & Installed:  Hassle Free
Quality Paint Finishes:  Enhanced looks
10 Year Warranty:  Framework

All Swallow greenhouses are now made from Thermowood.
Heat and steam are used to thermally modify the wood to produce an exceptionally strong and durable wood that is perfect for outdoor use.
This process is achieved using natural methods and is non-toxic and chemical free, with one of the many benefits being improved insulation well suited for greenhouses.
After treatment the wood is a beautiful consistent colour that will last far longer than normal treated timber.


A: 2660mm (8ft 9")

B: 6702mm (21ft 11")

C: 1730mm (5ft 8") 

D: 2660mm (8ft 9")

E: 1200mm (3ft 11") Double Doors

F: 1980mm (6ft 6") 

G: 2660mm (8ft 9")

H: 730mm (2ft 5")

 mm exact : inches approx


Swallow greenhouses are delivered and installed at the same time by Swallow. A firm and level base area will need to be ready such as slabs, concrete, decking, sleepers or similar.

 Nobody delivers faster than South West Greenhouses!

Our goal is that all orders are processed the same day as we take your completed order (or Swallows next working day)
We don't "sit" on them as some suppliers do, this means that you get your greenhouse in the quickest delivery time possible.

Free delivery to the whole of mainland UK as far North as Grangemouth Scotland, contact us for pricing for delivery north of Grangemouth stating greenhouse required and your postcode and we will get you the best possible price!


Expected delivery time for Swallow greenhouses

4-6 Weeks for all buildings



 Scroll down for options information

Thermowood  Olive Green  Bracken Green  Black  Lily White
Meadow Green Cream Rose Stone Lead Grey

Choose to have your greenhouse in natural finish Thermowood or painted in one of 9 attractive colours (some exclusive to us)
An oil service is available on Thermowood, this is professionally sprayed by Swallow and will help protect the frame from the elements, preserving the colour of the wood and reducing water stains and sun bleaching.

We also offer a colour matching service, using Swallows in house paint facility we can match most colours if you are trying to coordinate! Phone us with your choice.

Swallow have their own spray booth facility which enables them to paint their greenhouses to a high quality finish. Painted before glazing and sometimes in component form for a seamless finish.
The paint used is a water borne acrylic which has a flexible microporous protective film, this top quality paint is resistant to bacterial mould and UV attack.

Boarded or Dwarf Wall


Choose to have your greenhouse fully boarded around the bottom or choose to build a dwarf wall to replace the bottom boarding, a window cill style bottom will be made and a wall plan emailed to you to give to your builder.


Dwarf Wall
Porch Extension

This building comes with a 2ft 5" porch as standard which can be extended to 4ft 5" or 6ft 6" to enlarge your entrance area. Each extension includes extended Thermowood return staging and 2 roof windows.

Choose the painted to match option if ordering a painted building.

Extra Staging
If you need more work space for your potting and planting you can choose to add another full length of staging along the back wall of your greenhouse

High Shelf
Add a High Level Shelf to your greenhouse for extra storage.
Perfect for all those pots and tools you can choose to add a shelf which runs along the back wall of your greenhouse.

Returned High Shelves
Returned high shelves are available which will be fitted above the included return staging.
Supplied as a pair for both sides of your porch.

Choose the option that matches your porch choice.


Side Vents
Ventilation is important for every greenhouse to increase airflow and to control the inside temperature.

Choose to add these low level opening side/rear windows. (we will confirm position of windows with you)

Choose painted option with a painted frame.

Ornate Door Handle
An attractive ornate black door handle is available to add to your order.

Extra Doors
For increased access extra double doors can be added to either or both of the 8ft gable ends, will match your boarded or dwarf wall choice.

Choose your doors position as if you are looking at the front porch.

Choose painted option with a painted frame.


These high quality 2 tier slatted benches are freestanding and can be placed where you wish, these are suitable for inside or outside use.

Available in 4ft or 6ft lengths.

Can be painted to match.


Sparrow & Wren Cold Frames
  Matching cold frames sturdily built with toughened glass hinged roofs.

Sparrow is 4'5 long by 2'1 wide
Wren is 4'5 long by 3'4 wide

Can be painted to match.
Aluminium Crestings & Finials
  Add a full length of black quality aluminium crestings and finials to your greenhouse running the full length of the ridge and porch.

Creating a stylish attractive look with the added benefit of deterring birds!
Similar Greenhouses

   Wooden Greenhouse       Greenhouse Reviews       Swallow Greenhouses       Swallow Swan Greenhouses

Customer Reviews

Be the first to Write a Review for this item!