Learn essential interior design principles, from layouts to finishes. This diploma builds creative confidence and practical skills for designing stylish, functional residential and commercial spaces.
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This diploma in interior design introduces education interior design fundamentals, combining interior design and styling skills with creative planning. Learners explore design styles, principles and educational interior design concepts through structured online study.
The interior designing diploma course online covers space planning, colour theory, textiles, furniture and lighting design. Ideal for a one year diploma in interior designing, it builds practical skills for residential and commercial interiors.
Designed as a 1 year diploma in interior designing online, this certificate in interior design develops styling, staging, sustainable design and CAD for interior design, supporting progression into professional interior design practice.
Learners take a multiple-choice exam that is automatically marked. The exam evaluates their understanding of the course content, and learners must achieve at least 60% to pass. Successful learners receive a CPD-certified certificate.
After completing the diploma in interior designing course assessments, learners qualify for a CPD QS accredited certificate from One Education.
The certificate is available in two formats: a PDF version for £9 or a printed hard copy delivered by post for £15.
Quality Licence Scheme Endorsed Certificate
Learners also have the option to order a Quality Licence Scheme (QLS) Endorsed Certificate as additional proof of achievement. The QLS Endorsed Certificate can be delivered by post for £109, with an additional £10 postage charge for international students.
This course has been endorsed by the Quality Licence Scheme for its high-quality, non-regulated provision and training programmes. This course is not regulated by Ofqual and is not an accredited qualification. Your training provider will be able to advise you on any further recognition, for example progression routes into further and/or higher education. For further information please visit the Learner FAQs on the Quality Licence Scheme website.
Interior design continues to grow as homes, workplaces, and commercial spaces place greater value on functionality, aesthetics, and wellbeing. Skilled interior designers are increasingly sought after to create spaces that balance visual appeal with practical use, sustainability, and client needs.
Studying a Diploma in Interior Designing builds a strong foundation in design principles, space planning, colour theory, and styling techniques. It supports creative development, enhances design confidence, and strengthens portfolios for freelance or industry opportunities. CPD certification highlights commitment to professional development and adds recognised value to your CV across creative and design-focused careers.
The Diploma in Interior Designing is designed to be completed over 2 weeks and 2 days, offering a focused yet flexible learning experience. Learners can progress through the course at their own pace, allowing them to balance study with personal or professional commitments while completing the programme comfortably within the allocated timeframe.
The diploma in interior designing has simple and accessible entry requirements. Learners with an interest in design, creativity, and interior spaces are welcome to enrol. No formal qualifications are required to get started. The course is delivered fully online and can be accessed from any internet-enabled device, allowing learners to study flexibly from home and progress at a pace that suits their personal and professional commitments.
A Diploma in Interior Designing is a professional course that teaches space planning, colour theory, materials, furniture layout, and interior styling for residential and commercial spaces.
Yes. The diploma is ideal for beginners with no prior design background and starts from fundamental interior design concepts before progressing to practical design principles.
Yes. Many interior design diploma courses are fully online, allowing learners to study at their own pace with flexible access from any location.
Basic numeracy is helpful, but advanced maths or professional drawing skills are not required. Design concepts are taught step by step using simple, practical methods.
Learners develop skills in space planning, colour coordination, furniture selection, lighting design, materials knowledge, and interior styling techniques.
Most online interior design diplomas are CPD-accredited, meaning they support professional development and skill enhancement, though they are not formal academic qualifications.
| Module 01: Popular Interior Design Styles and How to Use Them | |||
| The 3 Types of Style That Influence Interior Design Choices | 00:01:00 | ||
| Art Deco Style | 00:03:00 | ||
| Victorian Style | 00:03:00 | ||
| Scandinavian Style | 00:02:00 | ||
| Modern Style | 00:02:00 | ||
| Contemporary Style | 00:03:00 | ||
| Eclectic Style | 00:06:00 | ||
| Italian Style | 00:04:00 | ||
| French Style | 00:05:00 | ||
| Industrial Style | 00:04:00 | ||
| Country Style: Architectural & Interiors | 00:04:00 | ||
| African Style | 00:05:00 | ||
| Conclusion | 00:06:00 | ||
| Assessment Module 01 | |||
| Module 01 Final Quiz Exam – Interior Design Diploma | 00:10:00 | ||
| Module 02: Design Principles and Elements in Interiors | |||
| Introduction to Design Principles & The Design Recipe | 00:03:00 | ||
| Design Element: Line | 00:05:00 | ||
| Design Element: Shape | 00:02:00 | ||
| Design Element: Form | 00:02:00 | ||
| Design Element: Colour | 00:02:00 | ||
| Design Element: Texture | 00:05:00 | ||
| Design Element: Space | 00:03:00 | ||
| Design Element: Value | 00:01:00 | ||
| Design Principle: Pattern | 00:03:00 | ||
| Design Principle: Contrast | 00:03:00 | ||
| Design Principle: Emphasis/Focal Point | 00:05:00 | ||
| Design Principle: Balance | 00:05:00 | ||
| Design Principle: Scale/Proportion | 00:03:00 | ||
| Design Principle: Rhythm/Movement | 00:03:00 | ||
| Design Principle: Unity/Harmony | 00:01:00 | ||
| Conclusion | 00:01:00 | ||
| Assessment Module 02 | |||
| Module 02 Final Quiz Exam – Interior Design Diploma | 00:10:00 | ||
| Module 03: Introduction to Colour in Interiors | |||
| The Impact of Fashion and Colour Trends | 00:04:00 | ||
| Colour Terminology | 00:04:00 | ||
| Colour Basics and Neutral Colours | 00:05:00 | ||
| Warm vs. Cool Colours | 00:03:00 | ||
| Colour Schemes | 00:11:00 | ||
| Colour Ratios and Applications | 00:05:00 | ||
| Using Colour To Trick The Eye | 00:04:00 | ||
| Conclusion | 00:01:00 | ||
| Assessment Module 03 | |||
| Module 03 Final Quiz Exam – Interior Design Diploma | 00:10:00 | ||
| Module 04: Introduction to Space Planning In Interiors | |||
| Understand why space planning is important to successful interiors | 00:01:00 | ||
| Efficient vs. Poorly Planned Spaces | 00:04:00 | ||
| Types of Building and Space Plans | 00:06:00 | ||
| Open and Closed Planned Spaces | 00:04:00 | ||
| Space Planning and The Design Principles | 00:09:00 | ||
| Tips and Tricks to Space Planning | 00:02:00 | ||
| Conclusion | 00:01:00 | ||
| Assessment Module 04 | |||
| Module 04 Final Quiz Exam – Interior Design Diploma | 00:10:00 | ||
| Module 05: Textiles and Fabrics for Interiors | |||
| Introduction To Textiles & Fabrics | 00:01:00 | ||
| Natural Fibers and Textiles | 00:08:00 | ||
| Synthetic Fibers and Textiles | 00:06:00 | ||
| Fabric Know Hows | 00:10:00 | ||
| End-Use of Textiles and Fabrics | 00:04:00 | ||
| Selecting and Recommending Textiles and Fabrics | 00:04:00 | ||
| Conclusion | 00:01:00 | ||
| Assessment Module 05 | |||
| Module 05 Final Quiz Exam – Interior Design Diploma | 00:10:00 | ||
| Module 06: Styling and Staging Interior Spaces | |||
| Introduction to Styling and Staging | 00:03:00 | ||
| Styling Coffee Tables | 00:12:00 | ||
| Styling Side Tables | 00:07:00 | ||
| Styling Servers and Consoles | 00:05:00 | ||
| Styling Dining Room Tables | 00:04:00 | ||
| Styling Book Cases and Display Cases | 00:12:00 | ||
| Styling with Scatter Cushions and Throw Pillows | 00:10:00 | ||
| Styling Seating and Sleeping Areas | 00:05:00 | ||
| Styling Walls with Art and Framing | 00:11:00 | ||
| Conclusion | 00:01:00 | ||
| Assessment Module 06 | |||
| Module 06 Final Quiz Exam – Interior Design Diploma | 00:10:00 | ||
| Recommended Materials | |||
| Recommended Readings – Interior Design Diploma | 3 days, 4 hours | ||
| Workbooks – Interior Design Diploma | 1 week, 2 days | ||
| Optional Assignment | |||
| Optional Assignment – Interior Design Diploma | 3 days, 4 hours | ||
| Trustpilot Review | |||
| Trustpilot Review | 00:00:00 | ||
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