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Expandable granny flat solutions for rental yield and family living

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© 2026 GFK Homes — Granny Flat Kits AU. Backed by LINKUP AI PropTech Group.

GFK Homes

Premium Expandable Container Home Collection

GFK Homes Premium Expandable Cabin

The Ultimate Modular Living Solution

Experience the perfect blend of modern architecture and rapid deployment. GFK Homes delivers a fully-equipped, structurally robust expandable home that seamlessly adapts to your lifestyle, whether as a premium granny flat, a serene retreat, or a high-yield investment property.

Tailored to Your Specifications

At GFK Homes, we believe your space should reflect your exact needs. Our modular framework is inherently flexible, allowing for seamless structural and aesthetic customization without compromising our rigorously tested engineering standards.

  • Bespoke Floor Plans & Room Configurations
  • Premium Exterior Cladding Options
  • Flexible Window & Door Placements
Customization Options for Expandable Container House

20FT, 30FT & 40FT Standard Footprints & Technical Specs

Rigorous technical parameters ensuring structural integrity, thermal efficiency, and longevity across all models.

20FT 30FT 40FT Dimensional Specifications
Main StructureGalvanized Steel Frame (Q235/Q345), Anti-corrosion treated
Wall Panel50mm / 75mm EPS / Rockwool / PU color steel sandwich panel
Roof SystemGalvanized steel sheet + PU / EPS insulation + Integrated ceiling
Floor System18mm fiber cement board sub-floor + 2mm PVC / SPC waterproof flooring
WindowsUPVC / Aluminum alloy double-glazed sliding windows (fly screens optional)
DoorsHeavy-duty steel security main door, premium aluminum/MDF interior doors
Electrical IntegrationSAA/CE/UL certified concealed wiring, distribution box, LED lights, switches, and sockets
Plumbing & SanitaryPre-installed PPR/PVC pipes, Shower cubicle, WaterMark/CE toilet, vanity, and exhaust fan

Seamless 6-Step Deployment

From flat-pack delivery to a fully structural home in hours, minimizing on-site labor and disruption.

6-Step Installation Process

20FT Interior Finishes

Bright, spacious, and modern interiors designed for maximum space efficiency and comfort.

* Furniture and soft furnishings shown are for illustrative purposes only and are not included in the standard package.

20FT Kitchen and Dining Area
20FT Bedroom Interior
20FT Living Area Interior

20FT Floor Plans

Versatile 20FT layouts. Please specify the Option Code when placing your order.

Floor Plan Plan 20-A

Plan 20-A

1 Bedroom + En-suite

Floor Plan Plan 20-B

Plan 20-B

1 Bedroom Large Living

Floor Plan Plan 20-C

Plan 20-C

2 Bedroom Standard

Floor Plan Plan 20-D

Plan 20-D

3 Bedroom Open Plan

Floor Plan Plan 20-E

Plan 20-E

4 Bedroom Dormitory

Floor Plan Plan 20-F

Plan 20-F

4 Bedroom Symmetric

30FT Series Overview

Extended footprints providing significantly more living area while maintaining rapid deployment capabilities.

30FT Extended Container House Front

30FT Interior Finishes

Expansive open-plan living enabled by the extended 30FT chassis length.

* Furniture and soft furnishings shown are for illustrative purposes only and are not included in the standard package.

30FT Kitchen and Dining
30FT Interior Angle
30FT Bedroom View

30FT Floor Plans

High-capacity layouts designed for multi-generational living. Please specify the Option Code when placing your order.

Floor Plan Plan 30-A

Plan 30-A

2 Bedroom + Large Living

Floor Plan Plan 30-B

Plan 30-B

3 Bedroom Compact

Floor Plan Plan 30-C

Plan 30-C

3 Bedroom Standard

Floor Plan Plan 30-D

Plan 30-D

4 Bedroom Executive

The 40FT Flagship Series Overview

Our most expansive model, delivering up to 74 square meters of luxurious residential scale.

40FT Flagship Container House Front

40FT Interior Elegance

Residential-grade volumes providing uncompromised living standards.

* Furniture and soft furnishings shown are for illustrative purposes only and are not included in the standard package.

40FT Lounge Area
40FT Lounge Area Wide
40FT Bedroom Area

40FT Floor Plans

Expansive residential layouts. Please specify the Option Code when placing your order.

40FT Floor Plan 1

Plan 40-A

40FT Floor Plan 2

Plan 40-B

40FT Floor Plan 3

Plan 40-C

40FT Floor Plan 4

Plan 40-D

40FT Floor Plan 5

Plan 40-E

40FT Floor Plan 6

Plan 40-F

Assembly Quality Control

Glimpses into our rigorous pre-fabrication control and on-site deployments.

Assembly Quality 11_01
Assembly Quality 11_02
Assembly Quality 11_03
Assembly Quality 11_04
Assembly Quality 11_05
Assembly Quality 11_06
Assembly Quality 11_07
Assembly Quality 11_08

Component & Material Engineering

Select your preferred window systems, exterior and interior finishes, and electrical standards.

Premium Door Options

Steel

Steel

Titanium alloy door

Titanium alloy door

Bridge-cut aluminum/Grey

Bridge-cut aluminum/Grey

Window System Options

PVC

PVC

Aluminum alloy window

Aluminum alloy window

Broken bridge window

Broken bridge window

Floor Options

SPC floor

SPC floor

PVC floor leather

PVC floor leather

Bamboo plywood

Bamboo plywood

Wall and Roof Panel (50/75/100 mm)

EPS

EPS

PU

PU

Rockwool

Rockwool

International Electrical Standards

Australian Standard Sockets

Australian Standard

European Standard Sockets

European Standard

American Standard Sockets

American Standard

British Standard Sockets

British Standard

Italian Standard Sockets

Italian Standard

Indonesian Standard Sockets

Indonesian Standard

Kitchen & Bathroom Configurations

Premium cabinetry, countertops, and modular bathroom pods. Please select your preferred options.

Kitchen Layouts

Kitchen Design 13_01

KITCHEN-OPT-1

Kitchen Design 13_02

KITCHEN-OPT-2

Kitchen Design 13_03

KITCHEN-OPT-3

Kitchen Design 13_04

KITCHEN-OPT-4

Kitchen Design 13_05

KITCHEN-OPT-5

Kitchen Design 13_06

KITCHEN-OPT-6

Bathroom Modular Pods

Bathroom Design 14_01

BATH-OPT-1

Bathroom Design 14_02

BATH-OPT-2

Bathroom Design 14_03

BATH-OPT-3

Bathroom Design 14_04

BATH-OPT-4

Bathroom Design 14_05

BATH-OPT-5

Bathroom Design 14_06

BATH-OPT-6

Bathroom Design 14_07

BATH-OPT-7

Bathroom Design 14_08

BATH-OPT-8

Bathroom Design 14_09

BATH-OPT-9

Interior Finishes & Flooring

Personalize wet areas and structural aesthetics with our expansive customization catalog.

Shower System & Wall Panels

Shower Panel Option 15_01

SHOWER-PANEL-1

Shower Panel Option 15_02

SHOWER-PANEL-2

Flooring Options (PVC/SPC)

Flooring Finish Option 16_01

FLOOR-OPT-1

Flooring Finish Option 16_02

FLOOR-OPT-2

© 2026 GFK Homes. All rights reserved.

Product specifications subject to change without notice.