At The Interior Design Institute, we don’t just teach design principles — we empower students to uncover their own unique style and nurture their natural creativity. You’ll gain the technical knowledge and practical skills needed to confidently bring your design ideas to life through 12 in-depth modules covering everything from design principles and history to spatial planning, lighting, and materials. Our fully online course combines engaging video content, interactive workshops, and assignments at your own pace, with personalised feedback from experienced tutors and access to an exclusive student community. While many students complete the course in around 24 weeks, you have up to 12 months to finish, giving you the flexibility to balance learning with other commitments. Whether you’re pursuing a new career or enhancing your passion for design, this course provides the foundation and support to help you succeed.Registration Code: 45423
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Is The Interior Design Institute legit?
The Interior Design Institute (theinteriordesigninstitute.com) has a 4.8 out of 5 rating on OK.one, based on 200 user reviews collected here. It is listed under Education & Training and its reputation is excellent. Praise is nearly unanimous, with 98% rating it 4 stars or higher; Reviews mostly discuss User experience, Product, Quality. Last updated 2026-08-12.
What reviewers say
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Reviewers overwhelmingly had a great experience with this company. Customers frequently praise the comprehensive modules, noting that the course materials are thoroughly organized and easy to follow. Many people also appreciate the flexible, self-paced nature of the program, which allows them to balance their studies effortlessly. Reviewers consistently highlight the supportive tutors who provide detailed, encouraging feedback on every assignment to build confidence.
However, some people mentioned that certain design software programs can feel a bit complex or clunky to use without prior experience. Reviewers suggested that introducing earlier support or extra guidance for these digital tools would be extremely beneficial for beginners.
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I have learnt so much during my time studying interior design with IDI. They have truly been amazing especially my tutur Marieke!
She has always been so helpful whenever I have a question and she is very inspiring.
I feel like I’ve gotten great value for money and I would 100% recommend this course
Reply from The Interior Design Institute2026-04-02
Thank you so much for your wonderful feedback, Kaylee! 😊
We’re absolutely delighted to hear how much you’ve enjoyed your interior design journey with us and that you feel you’ve gained such great value from the course. That’s exactly what we strive for!
It’s especially lovely to hear your kind words about Marieke—she’ll be thrilled to know she’s made such a positive impact on your experience. 🌟
Wishing you all the best as you continue to grow your skills and confidence in interior design, and thank you again for your 100% recommendation!
I would like to make a brief observation regarding the ability to differentiate between concepts. One detrimental aspect of the options is the lack of sufficient explanations, and in some parts, the explanations are inadequate, making it difficult to fully grasp certain concepts.
I hope this will be taken into consideration to improve the quality of educational content.
Reply from The Interior Design Institute2026-03-31
Hi Shahad,
Thank you for your thoughtful feedback—we really appreciate you taking the time to share this.
We’re sorry to hear that some explanations felt unclear. Our Student Support team has reached out so we can better understand your experience and help clarify any concepts you’ve found challenging.
Your feedback is very valuable to us, and we’ll certainly take it into consideration as we continue improving the course.
The Modules are really in depth & extensive, whether you have been in the industry already or completely new. The assignments are really good at using and applying knowledge learned - really well balanced. The course teaches you the information without pushing you in a certain design direction, allowing you to find your own feet.
Reply from The Interior Design Institute2026-03-31
Thank you so much for your thoughtful review! 😊
We’re really glad to hear that you found the modules in-depth and practical, and that the assignments helped you apply what you’ve learned in a meaningful way. It’s especially rewarding to know that you appreciated the balance of the course and the freedom to develop your own design style—this is something we truly aim to encourage.
Wishing you all the best as you continue to grow and find your unique voice in the industry! ✨
Step by step guidance through interior design from the start. Helped me visualize my ideas and apply to the project. Takes you through different styles and identifies my unique styl. Gets you work ready with tools to present a professional proposal to the client.
Reply from The Interior Design Institute2026-03-30
Hi Eileen,
Thank you for your lovely feedback! We’re so glad the course helped you develop your style and feel confident creating professional client proposals.
Wishing you all the best on your design journey! ✨
I’ve learned so much by taking courses through the Interior Design Institute. I feel more confident because it has helped me to refine my skills and taught me new ones along the way. The ability to work at my own pace has been very helpful. I’m very pleased with my experience and would highly recommend the course.
Reply from The Interior Design Institute2026-03-26
Hi Nikki,
Thank you so much for your wonderful feedback 😊 We’re delighted to hear how much you’ve learned and that the course has helped you build confidence while refining and developing new skills. It’s great to know the self-paced structure has worked well for you, and we truly appreciate your recommendation. Wishing you continued success on your design journey—we’re so glad to be part of it!
Absolutely sterling course. To see the growth & progression from one module to another. Would highly recommend this course.
Reply from The Interior Design Institute2026-03-26
We're happy to hear that you found the course so valuable and could see your progress through the modules, Katleho! Thank you for recommending our course!
Increased my confidence, competence and appreciation
I appreciated the material in this course. I am self taught, read a lot and worked with other fellow designers and gained a lot of experience in these ways. However, taking this course has given me a lot more confidence, skills, tools and resources that I did not gain on my own. I discovered a lot more through the course. It makes me feel more prepared for the real world. In my opinion, self-control and self-motivation is vital to start and finish this course, a lot of reading is involved. It’s definitely within the reach of the average person to accomplish. Because of time and management I had to purchase another 12 months to finish it. My tutor has been great and responsive. I continue to recommend this course to people
Reply from The Interior Design Institute2026-03-31
Hi Azalia,
Thank you so much for sharing your experience! 🌟 We’re thrilled to hear that the course has boosted your confidence, skills, and appreciation for interior design. It’s wonderful that you were able to build on your self-taught experience and gain new tools and resources through the program.
We completely agree—self-motivation and time management are key, and it’s fantastic that you persevered and even extended your access to complete the course. We’re also glad to hear that your tutor has been so supportive along the way.
Thank you for recommending the course to others—it means a lot to us! Wishing you continued success as you apply your new skills in the real world!
This course is GREAT! It is a very practical hands on course with assignments that help you to prepare and hone your skills as you move through the course. It has space for creativity and self expression in design which is great as you figure out your own personal design style. The tutors are very helpful and there is access to a lot of extra workshops and Advanced Modules to help you gain more insight into different aspects of Interior Design.
Reply from The Interior Design Institute2026-03-26
Hi Shana,
Thank you so much for your wonderful feedback 😊 We’re thrilled to hear you’re enjoying the practical, hands-on approach and finding the assignments helpful in building your skills as you progress. It’s great to know you value the creative freedom to develop your own design style, along with the support from our tutors and the additional workshops and Advanced Modules available. Wishing you continued inspiration and success on your interior design journey—we’re so glad to be part of it!
I love this course! It's just starting to get really exciting😁just a few things were a little unclear but the tutors are really helpful.
Reply from The Interior Design Institute2026-03-26
Hi Safara,
Thank you so much for your lovely feedback 😊 We’re so glad to hear you’re enjoying the course and that it’s starting to feel really exciting! It’s also great to know our tutors have been helpful whenever things felt a little unclear—that’s exactly what they’re there for. Wishing you lots of continued enjoyment as you progress, we’re excited to be part of your journey!
The Interior Design Institute has always been on point whilst I have been doing the course. Whether it is in responding and helping me with my queries and studies, or with the overall layout of the website and modules. I have had no problems at all, and thoroughly enjoy studying through the Interior Design Institute.
Reply from The Interior Design Institute2026-03-26
Hi Amber,
Thank you so much for your wonderful feedback 😊 We’re delighted to hear that your experience has been so positive and that you’ve found both the support from our team and the layout of the course easy to navigate. It’s fantastic to know you’ve had no issues and are thoroughly enjoying your studies with us. Wishing you continued success as you progress—we’re so glad to be part of your journey!
I’ve had a really positive experience with the Interior Design Institute. One of the biggest advantages is how affordable the course is compared to other options, which makes it accessible without compromising on quality.
Before enrolling, I actually signed up with another interior design course that was much more expensive and, unfortunately, very outdated. The materials felt old and didn’t reflect current trends or practices, which was really disappointing.
In contrast, the Interior Design Institute is up-to-date, with modern images, fresh concepts, and relevant content that reflects today’s design world. The course itself is easy to follow and well-structured, even for beginners. The lessons are clear and engaging, and I’ve genuinely learned a lot about interior design—from basic principles to more detailed concepts.
One thing I especially love is how much my confidence has grown using SketchUp—I genuinely feel like a bit of a whizz on it now, which is something I never expected before starting the course!
Another highlight is the support from the tutors. They are helpful, responsive, and provide constructive feedback that really helps you improve and stay motivated throughout the course.
Overall, I would definitely recommend the Interior Design Institute to anyone looking to get started in interior design in a flexible, supportive, and budget-friendly way.
Reply from The Interior Design Institute2026-03-23
Thank you so much, Nicole, for sharing such a detailed and thoughtful review! 😊 We’re absolutely delighted to hear that you’ve had such a positive experience with The Interior Design Institute.
It’s especially rewarding to know that you found the course both affordable and up-to-date, without compromising on quality—that’s something we truly strive for. We’re also glad that the structure and content have been easy to follow and engaging, helping you build a strong foundation in interior design.
Hearing how much your confidence has grown, particularly with SketchUp, is fantastic—that’s such a valuable skill to develop! 🙌 And of course, we’ll be sure to pass along your kind words to our tutors, who will be so pleased to know their support has made a difference.
Wishing you continued success as you keep building your skills and confidence—we’re excited to see where your design journey takes you! ✨
It was great experience with The Interior Design Institute. I am impressed with your modules and methods which is different from other schools.
Reply from The Interior Design Institute2026-03-23
Thank you, Elizabeth, for your lovely feedback! 😊 We’re so pleased to hear that you had a great experience and that our modules and teaching methods stood out to you. It means a lot to know you found our approach different and engaging. Wishing you all the best on your continued design journey! ✨
Being self paced is ideal for me. When I reach out to my instructors they respond promptly and are always helpful and encouraging. I look forward to investing in advanced courses.
Reply from The Interior Design Institute2026-03-23
Thank you so much, Shanna, for your kind feedback! We’re delighted to hear that the self-paced structure suits your lifestyle and that our tutors have been responsive, supportive, and encouraging throughout your journey. It’s wonderful to know you’re looking forward to continuing with our advanced courses—we can’t wait to support you further! ✨
Great program, especially for the cost! I wasn't sure what to expect at the onset but what I've learned so far has been a great value. I'm not sure if I'll be able to parlay this into a career, per say, but I've learned so much that will help me in our own home projects. And the online learning support has been wonderful. I'd add that joining the FB group has also been really helpful & gets you more in touch with other students that may be struggling at the same point you are. Additionally, the modules definitely get more challenging (and time-consuming!!) as you progress, but after each one I've completed, my sense of satisfaction is huge.
I'm taking the Advanced SketchUp module next- can't wait to see how much better this will make my renderings!
Reply from The Interior Design Institute2026-03-20
Hi Sharon,
Thank you so much for your lovely feedback! 😊 We’re so glad to hear you’ve found the course great value and that it’s been helpful for your home projects.
It’s also wonderful that you’re enjoying the student support and Facebook group—such a great way to stay connected! And you’re absolutely right, the modules do get more challenging, but that sense of achievement makes it all worthwhile.
Best of luck with the Advanced SketchUp module—we’re excited for you!
I’m currently a student at the Interior Design Institute and just finished Module 10 of 12—and I have to say, I am absolutely loving it! I can’t stress enough how thorough and well-structured the course is. Every module is packed with valuable insights, practical exercises, and clear guidance.
One of the best parts is being able to learn at my own pace. It makes it so much easier to really absorb the material and revisit concepts whenever I need to. This flexibility, combined with the depth of content, makes the learning experience truly enjoyable.
I couldn’t recommend the Interior Design Institute more for anyone looking to seriously level up their interior design skills!
Reply from The Interior Design Institute2026-03-20
Hi Meg,
Thank you so much for your wonderful feedback—this was such a joy to read! 😊
We’re absolutely delighted to hear how much you’re enjoying the course and that the structure, content, and practical exercises are helping you get the most out of your learning. Reaching Module 10 is a fantastic milestone, and it’s great to know the flexibility of studying at your own pace has made the experience even more rewarding for you.
It’s especially meaningful to hear that you’d recommend the course to others—thank you for your kind words and support!
Wishing you all the best as you complete your final modules—we’re excited for what’s ahead for you in your interior design journey ✨
The institution is affordable, helpful support team, amazing lecture who is attentive and supportive.
Reply from The Interior Design Institute2026-03-20
Thank you so much, Thabo! 😊
We’re really glad you’ve found the course affordable and felt supported by both our team and your tutor. Wishing you all the best with your studies!
The courses are structured in a way that makes sense and progresses both your knowledge and skill set. The work work is easy to understand and thorough
Reply from The Interior Design Institute2026-03-20
Thank you for your kind feedback, Brent! 😊
We’re so pleased to hear you’re enjoying the course structure and finding the content clear and easy to follow. Wishing you continued success with your studies! ✨
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