Billy Blue College of Design
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Diploma of Interior Design and Decoration

Billy Blue College of Design

The Diploma of Interior Design and Decoration provides graduates with a theoretical and technical base of knowledge of general interior design and decoration principles and practice, along with an introduction to specialist areas within the interior design and decoration field, leading either to entry-level employment in the interior design and decoration sector or to further specialised design study at Bachelor level.

Careers in Diploma of Interior Design and Decoration

  • Self-employment as an interior decorator
  • Architectural sales representative for industry product
  • Interior stylist
  • In-house Interior Designer or Decorator for Design and Decoration consultancies
  • In-house Interior Designer or Decorator for furniture, furnishings and fabric suppliers
  • In-house Interior Designer or Decorator for furnishings departments of retail stores
  • Soft furnishings consultant
  • Visual merchandiser
  • Events and Installation designer
  • Real Estate home stager
  • In-house Interior Designer or Decorator for shop fitters

Quick Course Guide

Qualification Title Diploma of Interior Design and Decoration    

Study Options – Domestic Australian students

Full-time Blended*

Part-time Blended*

Full-time online

Part-time online

*Blended (face to face on campus plus facilitated online)

Study options – Overseas students

Full-time Blended*
* Blended - face to face on campus plus facilitated online (no more than a third of the course online)

Start Dates

February, June, September

For specific dates visit the website

Course Length

Full-time: 1 year

Part-time: 2 years maximum

Admission Criteria

Completed year 12 or equivalent. No minimum ATAR required.

Demonstrated ability to undertake study at the required level:

  • broadly relevant work experience (documented e.g. CV), demonstrating a reasonable prospect of success; OR
  • formal, informal or non-formal study, completed or partially completed, demonstrating a reasonable prospect of success; OR
  • written submission to demonstrate reasonable prospect of success; OR
  • written submission to demonstrate reasonable prospect of success; OR

View full course admission information

Payment Options - Domestic Australian students

Upfront payment

This means tuition fees will be invoiced each trimester and payment is required on or before the due date.


FEE-HELP is Australian Government’s loan scheme for higher education degree courses.

Further information within this Course Information Sheet

It can assist you in paying for all, or part of, your course fees. Repayments commence via the tax system once your income rises above a minimum threshold ($54,869 in 2016-17). Just like with any other debt, a FEE-HELP debt is a real debt that impacts your credit rating.


Upfront payment

This means tuition fees will be invoiced each trimester and payment is required on or before the due date.

Course study requirements

Each subject involves 10 hours of study per week, comprising 3 hours of facilitated study and 7 hours selfdirected study.


Practical assignments, research projects, presentations and reports


Sydney Campus

Brisbane Campus

Melbourne Campus

Delivered by

Billy Blue College of Design at Torrens University Australia


Torrens University Australia Ltd is registered as a self-accrediting Australian university by the Tertiary Education Quality and Standards Agency (TEQSA).

CRICOS Course Code

Provider obligations

Torrens University is responsible for all aspects of the student experience, including the quality of course delivery, in compliance with the Higher Education Standards 2015

Accrediting body

Torrens University Australia Ltd.

Course Fees

For details, please click here.

CRICOS Course Code


Course credits

If you have already completed a qualification you may be able to credit this against your degree with us, even if it’s from another institution. Find out more

Key Dates

2019 course dates for all Billy Blue classes held at our Sydney, Melbourne and Brisbane campuses.

Start Dates Census Dates Last Day Breaks
Mon 04 Nov 2019 25 Nov 9 Feb 23 Dec – 05 Jan 2020
Mon 17 Feb 2020 6 Mar 10 May 11 May – 1 Jun
Mon 1 Jun 2020 19 Jun 23 Aug 24 Aug – 14 Sep
Mon 14 Sep 2020 2 Oct 6 Dec 7 Dec – 15 Feb 2021

Billy Blue may offer mid-term intakes throughout the year which are subject to availability. For more information please speak with one of our course and career advisors on 1300 851 245

Course Structure

The course structure compromises of 12 core subjects over Levels 100 and 200, as follows:

Level 100 11 core subjects  
Level 200 1 core subject  

Course rules

The course structure is based on a standard duration of three study periods (each of 12 weeks duration – 12 teaching weeks).

Four subjects are undertaken in each study period (a total of 12 subjects). To qualify for Diploma of Interior Design and Decoration, students must complete a minimum of 80 credit points. All subjects are compulsory.

The inclusion of a Level 200 subject from Bachelor of Interior Design into the course architecture provides students with the opportunity to explore conceptual and physical design solutions and apply design discipline knowledge and skills within a professional design practice. The inclusion of this Level 200 subject ensures graduate employability outcomes can be met by this course.


The subject introduces the student to various aspects of the elements of design, e.g. materiality, form and shape, colour, positive and negative space etc. utilized in creative problem solving. Initially students are introduced to a design development process, from the tangible to the digital; through paper model making with its inherent skills development and risk taking, then on to further digital development using newly introduced software. Concurrent, weekly, individual homework tasks focus on understanding and appreciation of materials, their many varied uses, properties and the manufacturing processes related to them. Students will make incremental progress towards choosing a material in which their individual design can be realized. The submission will include a material and colour folio. The final submission will be a model executed in an appropriate material with its function/ usage contextualized with all relevant information gleaned throughout the trimester.

This subject is an introduction to the design process with an emphasis on bespoke decoration. The student learns about design principles and elements and their place in the creative design process and the role of reflection in design development throughout the design process. A focus on colour and the application in interior spaces is explored and applied. The student produces design concepts for an interior space through a series of exercises using creative thinking methods. The student explores and challenges a range of different ideas. Presentation techniques are explored. During this subject the student acquires a basic understanding of the opportunities for custom design and customising available products.

Drawing is a rudimentary and essential basis for any design career. This subject introduces the student to the methods and techniques of basic photo imaging and drawing and professional visualisation in the context of interior design. Students explore a range of techniques and materials and their application in order to communicate design concepts and assist students in understanding the principles of design and their specific application to drawing. Both manual and digital methods of visual communication are explored.

In this subject the student learns how to develop and refine a range of techniques to produce technical and concept drawings. The student explores the way design drawing, both technical and concept, can be applied to interior decoration and design contexts where visual representation is required. The student learns how to produce floor plans, elevations, sections, isometric, and axonometric drawings relevant to interior spaces and furniture. Both manual and digital methods and techniques are explored.

This subject introduces the student to research and specification of furniture, soft furnishings and accessories for interior spaces. The student learns how to interpret the decoration requirements from a project brief, research furniture and accessories and make the appropriate recommendations to the client. The student also learns how to assess soft furnishing requirements, research soft furnishing materials, window treatments, and soft floor coverings. The student is introduced to the application of Australian Standards, documentation and presentation of decorative recommendations.

In this subject, the student learns how to identify different types of joinery and associated finishes. The student will design and document a basic joinery package for a residential kitchen brief. Student will develop an understanding of joinery construction terminology and its application. Student will further develop knowledge of joinery finishes, fittings, and equipment.

The student develops their knowledge of applicable Australian Standards, regulations, and codes.

This subject introduces the student to industry standard CAD software and its application. The student will learn how to set up and draw a CAD documentation package, add annotations to drawings, and plot/print drawings.

In this subject, knowledge of basic building and structural components is developed. The student learns how to interpret technical drawings and cumentation for interior projects. The student is introduced to legislative regulations, codes and standards and their application.

In this subject the students will identify both the structural and non-structural elements of a chosen site. Students will identify the existing services, material features, and construction methods and analyse their suitability for a client. Students will identify relevant equipment, regulations, standards and procedures to prepare for a site visit. Students will research projects of a related nature to identify elements of spatial configuration and demonstrate how they apply to a client brief. Student will demonstrate through evidence of design process how to apply elements and principles to spatial design.

Students communicate design solutions through 2D and 3D visualisation techniques which satisfies the client’s needs.

This subject investigates the evolution of built environment design. It explores major art and architectural movements throughout history and the development of contemporary design by investigating significant turning points and historic milestones. This subject will focus on developing the students’ understanding of the complexities of designing an area within a spatial environment whilst identifying and activating an urban site, with consideration of the longevity and adaptability of the final design solution. Students will integrate their research and knowledge of environments, identifying design related and environmental imperatives in the realisation of design briefs.

This subject enables the student to learn how to analyse a project brief, conduct project research, generate design themes and concepts, select and specify internal finishes, furniture, furnishings, lighting and object d’art within the commercial context. For this subject the student will present a fully resolved interior design and decoration scheme.

This subject develops a student’s personal brand identity through exploring their place within the design industry. The student will further develop acquired technical and soft skills, evaluate their own work, and understand industry opportunities. The student applies industry knowledge to course work activities, and gains knowledge of ways to maintain currency in design industry.

Students can engage in this subject either through external placement or internal placement.

External Placement:

Offers students the opportunity to work within a professional design studio for a period of time. Student are exposed to professional work environments and are encouraged to fully immerse themselves in this through a collaborative design project.

Externally placed students will be matched to an appropriate mentor at the placement site and monitored by an academic in the discipline of study.

Internal Placement:

Students will engage with a similar range of professional experiences to those placed externally. Assignment to, and management of, WIL tasks may occur face to face or via a dedicated online platform.

Internally placed students will be directed by a project leader/academic.

In both cases:

  • Students may or may not see projects through to completion but may contribute to (and be assessed on) progress
  • Students may be involved in the initial pitch to clients and/or supervisors for the awarding of the project
  • Students may, or may not, be involved in presenting the project during its progress, or at completion

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