A Singapore interior design studio.
Aiden T is an award-winning design firm founded in 2005 by principal Arjan Nijen Twilhaar, whose initials form the company’s anagrammatic name. Specializing in both residential and commercial spaces, Aiden T offers comprehensive design services, leveraging Arjan’s extensive experience across a wide range of projects, including landed properties, condominiums, flats, spas, restaurants, hotels, retail outlets, and offices. This diverse background enables the firm to deliver designs meticulously tailored to individual needs, with a strong emphasis on comfort and client care.
The firm’s exceptional designs have garnered significant recognition, being featured on prominent media platforms such as HGTV, Channel 5, and CNA, alongside print publications including Home and Décor, Lookbox Living, Square Rooms, The Straits Times, Harpers Bazaar, Elle Magazine, IS Magazine, and Female. Aiden T’s work has also been showcased on digital platforms like Yahoo! News, Houzz, Qanvast, Renopedia, and Design Authority.
Aiden T’s commitment to excellence is further underscored by its accolades. The company was honored with the Best Residential Interior Designer, Singapore award in 2024, and its Pasir Ris home office project secured the 2022 Best Residential Interior Design award. Arjan Nijen Twilhaar’s individual achievements include the Best Retail Concept award in 2004, the Innovators in Design award in 2017, and being voted Best Residential Interior Designer, Singapore by LUX life Magazine in 2018.



Project 01
Aiden T - Country Park-1 Aiden T - Country Park-2 Aiden T - Country Park-3 Aiden T - Country Park-4 Aiden T - Country Park-5 Aiden T - Country Park-6 Aiden T - Country Park-7 Aiden T - Country Park-8 Aiden T - Country Park-9 Aiden T - Country Park-10 Aiden T - Country Park-11 Aid
Interior Design


Project 02
In the heart of Country Park, a three-bedroom apartment—once well-worn and deeply loved—has been reawakened through a bold and deliberate act of design by Arjan Nijen Twilhaar, Principal Interior Designer of Aiden T.
Interior Design


Project 03
After over two decades in the same home, the owners stood at a fork in the road: relocate or redefine. With its enviable location and the soaring cost of moving, they chose instead to rewrite the narrative of their space—to honour its past while carving out a future that reflects
Interior Design


Project 04
The layout was the first to fall away. In its place: a flipped floor plan that liberates the primary suite, gifts the bathroom a sense of ease and volume, and encloses the kitchen in a tailored, purposeful gesture. Flow was not sacrificed—it was refined. Storage expanded, sightli
Interior DesignProject 05
Materiality takes centre stage in this home. With beloved pets in the picture, every surface is chosen with intent. Rugs are minimal, and floor finishes were reimagined as part of a choreographed tension: a dark wood tile, laid boldly across the hallway and nudging into the livin
Interior DesignProject 06
The palette is intentionally quiet—sandy neutrals whisper beside grounding chocolate browns, while furniture and curated accents layer on warmth and personality. Warm terracotta stone panels nod subtly to the earth, anchoring the emotional temperature of the space.
Interior Design