Intheory Design ✓ ACRA Verified
About Intheory Design
A Design focused Award Winning Interior Design Studio based in Singapore.
Homeowners contacting Intheory Design typically ask about Interior Design. The team positions itself as a working home services outfit rather than a generalist, so you can expect questions about scope, access, and timing before a quote is confirmed.
Intheory Design covers all of Singapore, which is useful if you live in a less-central estate or need a provider that can follow a recurring job to different addresses. The business is KakiList-verified, meaning a real person has confirmed the operating details and contact channel. Google reviewers currently give Intheory Design a strong average of 4.8/5 across 41 reviews, which is a reasonable signal of consistency for a home services provider.
If you want to gauge whether Intheory Design is the right fit for your job, the fastest path is a WhatsApp message with photos of the issue, your postal code, and a rough preferred slot. Most providers on KakiList respond within a few hours during business hours and can quote before scheduling a visit.
Services Offered
Is Intheory Design legit?
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Verified by KakiListWe cross-check listed businesses against Singapore's official ACRA registry before marking them as verified.
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4.8/5 from 41 Google reviewsGoogle reviews are harder to fake than testimonials on a provider's own website because each reviewer has an auditable Google account.
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Operating islandwideA provider listing specific coverage zones is more credible than a vague "all of Singapore" claim, because it implies real scheduling and logistics.
Google Reviews ⭐ 4.8 (41 reviews)
Jingwen
★★★★★
We had the pleasure of working with Nisa for our home, and it turned out to be one of the best decisions we made. We truly love how our home came together. With Nisa’s leadership throughout the process, we felt well supported by her creativity and empathy. She took the time to place herself in our shoes, thoughtfully envisioning and tailoring the design to our needs and lifestyle. She also navigated seamlessly with multiple contractors to implement changes along the way, ensuring everything came together smoothly. Nisa was always timely with her updates, transparent about any potential issues, and consistently reliable. We had complete trust in her to execute our home project from start to finish. We couldn’t have asked for more. We’d highly recommend Nisa to anyone looking to bring creativity into their home, with thoughtful attention to detail throughout.
Fairuz Razak
★★★★★
We met with nine other IDs before deciding to go with Nisa, as she really stood out from the rest. She immediately understood the look and feel we wanted, with a great eye for aesthetics while keeping everything practical and functional. The entire project was well managed with no delays, and any issues that came up was handled quickly and professionally. Nisa also kept us well-informed with timely updates throughout the process, which made everything smooth and stress-free. Her problem-solving skills and attention to detail really showed in the final result. We’re so happy with how everything turned out and would definitely recommend Nisa to anyone looking for a designer who’s creative, organized, and easy to work with.
Alicia T.
★★★★★
Working with Joanna was an absolute breath of fresh air. From our very first meeting, I was struck by her calm demeanor and genuine ability to listen. I never felt rushed or 'sold' on a vision that wasn't mine. Instead, she took the time to truly understand how my family lives and what we value. The design process can be stressful, but Joanna has a way of keeping everything grounded and manageable. They translated my vision into a cohesive, beautiful reality that feels exactly like 'home.' If you’re looking for a designer who values your input as much as their own expertise, you will be in good hands with Joanna
Madeline Goh
★★★★★
An amazing experience working on our first home renovation. The design turned out even better than we imagined and we’ve received countless compliments from family and friends. Thank you Rico for creating our first home we truly love.
Septini Ng
★★★★★
I recently completed a home renovation with the help of designer Yongkun, and I’m very happy with the results. Yongkun was professional, creative, and easy to work with throughout the entire process. He offered great design ideas, kept everything on track, and made sure the quality of the work was top-notch. Most importantly, he kept me updated and always responded promptly. The space looks amazing and feels completely refreshed. The whole experience was smooth and stress-free. I highly recommend Yongkun if you're planning any kind of home renovation.
Intheory Design vs other providers in Singapore
Side-by-side with the next three highest-rated interior design providers on KakiList, so you can see how Intheory Design stacks up at a glance.
| Provider | Google Rating | Reviews | Years | Verified |
|---|---|---|---|---|
| Intheory Design (this page) | ⭐ 4.8 | 41 | — | ✓ |
| The Alchemists Design | ⭐ 5.0 | 656 | — | ✓ |
| Vitas Design SG | ⭐ 5.0 | 183 | — | ✓ |
| Comfort Home Interior | ⭐ 5.0 | 182 | — | ✓ |
Frequently Asked Questions
How do I contact Intheory Design?›
The fastest way to reach Intheory Design is via WhatsApp — tap the WhatsApp button on this page to message them directly. If a phone number is listed you can also call. Most enquiries get a reply within a few hours during business days.
Which areas in Singapore does Intheory Design serve?›
Intheory Design provides islandwide coverage, which means they accept jobs across all regions of Singapore — HDB, condo, and landed properties included. Always confirm travel charges upfront if your location is far from their usual base.
How much does Intheory Design charge?›
Pricing depends on the scope of the job, property type, and urgency. Intheory Design will quote after understanding what's needed — usually via a short WhatsApp or phone conversation. Always ask whether the quote includes materials, transport, and GST so you can compare providers on equal terms.
Is Intheory Design a verified business?›
Yes — Intheory Design is verified by KakiList. We check each listed business against public Singapore business records before it appears as verified on the site.
How quickly can Intheory Design start a job?›
Most providers listed on KakiList reply within a few hours on business days. For urgent jobs (burst pipe, lockout, aircon failure), mention that in your first WhatsApp message so Intheory Design can prioritise the slot. Non-urgent bookings typically start within 2–5 days depending on current schedule.