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Granny Flat

The Katherine
56.16m²

A two-bedroom granny flat the whole family can live in.

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The Katherine
Floor area
56.16m²
Bedrooms
2
Bathrooms
1
Footprint
8.4m × 7.2m
Overview

A two-bedroom granny flat the whole family can live in.

Step up to a true two-bedroom home. The Katherine's 56.16m² layout gives you a generous open living area, two bedrooms and a full bathroom — a complete, comfortable granny flat or rental that maximises your backyard's potential.

It still arrives as a pre-cut flat-pack kit with engineering and council documents included. Under NSW Complying Development rules, a two-bedroom granny flat like this can be approved in as little as ten days.

  • Two bedrooms plus a full bathroom
  • Generous square footprint with patio
  • Complying Development approval in ~10 days
  • Engineering & council package included
The Katherine floor planIdeal for family granny flat
Design gallery

Every angle of the The Katherine.

Specifications

Layout & schedule.

Overall footprint 8.4m × 7.2m. Final dimensions confirmed on your engineered plans.

Rooms & spaces
Living7.2m × 3.6m
Bedroom3.6m × 3.6m
Bathroom1.2m × 2.7m
Slimline patio3.6m × 1.2m
Window & door schedule
WindowAluminium sliding1200 × 1000
WindowAluminium sliding ×31200 × 1200
WindowAluminium sliding800 × 300
DoorAluminium sliding, 2-panel1800 × 2100
Ideal for
Family granny flatTwo-bed rentalMultigenerational livingBackyard investment

Every kit includes engineering ready for council. See full inclusions & the build process.

Gallery

Recent builds.

What's included

A complete, engineered kit.

Every The Katherine ships as a pre-cut, fully insulated flat-pack with all fixings and council-ready engineering.

Panelspan® insulated wall panels — external and internal
Insulspan® insulated roof panels in Colorbond® or Zincalume®
Aluminium windows and sliding doors in a range of coloured frames
Pre-hung internal timber doors and jambs
Colorbond® trims, cappings, flashing and rainwater products
Blue Core steel framing system
Fixing and fasteners to assemble your Quick Built home
Structural plans, engineering certification and construction manual
Full inclusions & process
Your space, made simple

Start with a floorplan — or build it in 1, 2, 3.

Haven't found what you're looking for? Simply fill in the downloadable floor plan designer below.

QuickBuilt floor plan designer sketch sheetDownload the floor plan designer

The easiest way forward is simple: send us a floorplan and we'll prepare a tailored quote for your dream space.

Prefer to build it step-by-step? Our modular SIPs system makes it as easy as 1, 2, 3.

1

Choose your wall height

Start with the wall height that suits your design. Select our standard 2.4m walls or upgrade to a spacious 2.7m, 3m or 3.6m wall height.

2.4m
2.4mStandard
2.7m
2.7mUpgrade
3.0m
3.0mUpgrade
2

Choose your building width & length

Your width is set using our 1200mm wide precision-engineered SIPs panels that can be cut to any size — extend your space to whatever you need. Our modular SIPs system makes it effortless to scale your design with accuracy and speed.

3

Make it yours

Once your layout is set, shape the look, feel and functionality of your QuickBuilt home with a wide range of add-ons and personalisation features — all designed to work seamlessly with our high-performance SIPs system.

Architectural add-ons
  • Covered outdoor areas, carports or breezeways
  • Feature gables or extended rooflines
  • Your choice of doors and windows
  • Styles, colours and placements that suit your lifestyle
  • A selection of exterior cladding finishes
  • Your preferred Colorbond® roof profile and colour
Exterior finishes
Cladding
James Hardie AxonJames Hardie Fine TextureJames Hardie Brushed ConcreteTimber Shadowclad Grooved
Roof profile
CorroMono
Colorbond® colours

Ready to bring your space to life?

With QuickBuilt, creating your dream space is refreshingly simple. Start with a floorplan or build it step-by-step — our high-performance SIPs system gives you the freedom to design, customise and complete a home that fits your lifestyle perfectly. From compact studios to fully personalised tiny homes, every detail comes together with speed, precision and ease.

Your vision. Our system. A space you'll love living in.

Keep exploring

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The Eyre03 · 14.4m²
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A compact backyard room you can build in a weekend.

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Brochures & specs

Download the The Katherine details.

Get full designs, inclusions and construction information in our downloadable brochures.

03Documents available · PDF
QBS Modular Homes & Cabins Brochure
Download
Brochure

QBS Modular Homes & Cabins Brochure

Overview of QuickBuilt Systems modular home and cabin packages — designs, specifications and inclusions.

PDF1.8 MB
QBS Home Construction Procedure Manual
Download
Technical guide

QBS Home Construction Procedure Manual

Detailed construction procedure manual for QuickBuilt Systems homes — site preparation, panel installation and lock-up sequence.

PDF6.3 MB
Quick Built Sub Floor Installation Guide
Download
Install guide

Quick Built Sub Floor Installation Guide

Step-by-step subfloor installation guide for QuickBuilt Systems — bearer and joist layout, fixing details and tolerances.

PDF644 KB

Ready to price the The Katherine?

Tell us about your site and we'll send floor plans, inclusions and pricing — no obligation.

Speak to our team1300 132 787

Mon–Fri · 7:30am – 4:30pm AEST

Get in touch today

What our customers say

Quick Built Systems did an amazing job building my patio! Their team was professional, efficient, and delivered exceptional quality. The design and construction exceeded my expectations, and the attention to detail was impressive. The patio has transformed my outdoor space into a beautiful relaxation area. I've received countless compliments from friends and family.

Kristen Gavanas
Google review
Take your next step

Ready when you are.

For more information on our designs, inclusions, options and prices, download our Design Price Guide.

Or get in touch — we can help answer your questions.

Design Price GuideGet in touch
Quick Built Designs & Price Guide

Frequently asked questions.

Because we use Structural Insulated Panel Systems (SIPS) sandwich-panel technology, there's no need to build a timber or steel frame and then clad it inside and out. The panels arrive pre-finished, so the system reaches lock-up stage in days. Any competent handyman can install a Quick Built home, as it comes as a complete flat-pack kit.

Structural Insulated Panel Systems (SIPS) are widely used throughout Europe and the US and are now available in Australia thanks to ever-increasing energy-efficiency requirements. Each panel is a sheet of fibre cement laminated to both sides of an insulation core. Our core is EPS-FR — polystyrene with a fire-retardant additive — which provides excellent insulation.

Yes. Because we use the pre-finished SIPS panel system, the modules are quick and easy to install. Any keen handyman or owner-builder can build a Quick Built home, as all required parts and instructions are supplied.

All of the panels come pre-cut and labelled, so there's no need for cutting equipment on site. You'll need a drill, screwdrivers, a rivet gun, a silicone applicator, and all necessary safety clothing and eyewear.

Permits may be required depending on the size of your home — you'll need to check requirements with your local council. Our homes are architecturally designed and engineered, so all engineering drawings are supplied with your kit. Under the NSW Complying Development regulations for granny flats, approval can be obtained in as little as ten (10) days where minimum conditions are met. Many backyard cabins under 20m² often need no approval at all.

Our Quick Built kits are engineered for any floor — whether timber, steel frame or a concrete slab. We also offer an optional pre-cut steel flooring system with piers.

You'll need to engage a fully licensed plumber and electrician to complete these works when installing your kit. Plumbing and electrical wiring, fittings and installation are not included in the kit.

Because there's no frame to build and no external cladding to add, the structural shell goes up fast. Most designs reach lock-up stage in a matter of days with a small team — far quicker than traditional construction.