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Urban Caves

The Darley 20 From $26,000 Installed

This is our best selling product. The Darley 20 backyard cabin takes advantage of generous NSW exempt development legislation that allows people to install a 20m2 garden shed without the need for council approval. Most people have a variety of uses for their garden sheds. Many things have been created and invented in sheds over the years. Commonly a private retreat away from people to think, to dream, to work on projects etc. You can have plumbing and electrical for reasonable uses inline with a garden shed. We also have the Darley 9 from $21,000 and the Darley 13 from $23,500.

Included as Standard

  • Free Delivery - within the Blue Mountains
  • Free Installation - beside or behind your house
  • Steel posts - concreted into the ground
  • Ant caps - KORDON termite barrier
  • Bearers & Joists - Smartframe LVL
  • Flooring - Structaflor Yellow Tongue
  • Framing - 90x45mm treated pine
  • Door - Sliding Double Glazed with Flyscreen
  • Window - Awning Double Glazed with Flyscreen
  • Internal lining - ply panelwood with V groove
  • Internal trim - pine DAR around all edges
  • Colorbond cladding - 22 colour options
  • Roofing blanket - insulates & reduces condensation
  • Roof Awning - colorbond on underside

Optional Extras

Earthwool Insulation $1,600

Brand: Earthwool

Product: External wall batts

R-Value (m²K/W): 2.5HD

  • Installed in floor, walls and ceiling

Cedar Feature Wall $1,600

Brand: Cedar Sales

Product: Shiplap Western Red Cedar

  • Includes application of Cutek CD50 oil with a walnut tint

Ekodeck Composite Decking $1,800

Brand: Ekologix

Product: Ekodeck Plus 137mm

  • Installed with Quickfix concealed fix kit
  • Finished with Ekodeck around front and sides

Additional Fixed Door Panel $1,000

Only available on the Darley 20

Dimensions: 900mm x 2.1m

Brand: Polar Eco-View

Product: Double glazed fixed panel

  • Installed beside sliding door
  • Lighting - allows in more natural light
  • Appearance - more generous proportions

Internal Wall & Barn Door $2,400

Internal Dimensions: 2600mm x 900mm

  • Framing timber - 90x45mm treated pine
  • Sliding door - hung externally as a barn door
  • Internal lining - 6mm villaboard and/or 9mm ply panelwood V groove
  • Coordination - we liaise with your plumber in the lead up to and during installation

Additional 1545x600 Window $800

Double glazed with a fly screen.

Additional 600x600 Window $600

Double glazed with a fly screen.

Options and Customisation

Walls | Cabin Dimensions

Walls | Cabin Dimensions

Walls | Cabin Dimensions

The Darley 20 is 3.6m x 5.4m which create an area of 19.44m2. You can change these dimensions if required. This is commonly done to fit between trees or to create a cabin with proportions that suit the garden. Here are some examples:


Darley 9 | From $21,000

Cabin Dimensions: 3.6m x 2.4m

Roof Dimensions: 5.4m x 2.4m 


Darley 13 | From $23,500

Cabin Dimensions: 3.6m x 3.6m

Roof Dimensions: 5.4m x 3.6m

Awning and Deck

Walls | Cabin Dimensions

Walls | Cabin Dimensions

The awning can be reduced from the usual 1.8m depth if required. The deck can be of any dimension and can be up to 25m2 without requiring council approval.

Doors and Windows

Walls | Cabin Dimensions

Doors and Windows

The door is always under the awning. It's usually centered on the wall but can be moved to one side if required. Usually the window faces into the property as facing a boundary fence could cause privacy issues with neighbours. Windows are also usually centered but can be moved to one side if required.