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Our Team.

A team of multi-disciplinary individuals with a combined of decades of professional and academic experience, having trained and practised both locally and abroad. Our consuming passion is to elevate our work beyond the ordinary, beyond basic problem solving, beyond basic functionality to derive pleasure for ourselves as well as our spectators. We personally liaise and direct each project of the firm, thereby ensuring quality in design and implementation.


Hseng Iu Lim

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 Managing Partner

Registered Architect, BOA, M. SIA Associate Mediator(SMC, SIMI), Fellow .SIARB Arbitrator,  ASEAN ARCH, APEC ARCH

A former book-prize winner, Hseng Iu  graduated from the National University of Singapore in 1994 with an Honours Degree, and passed the Board of Architects professional examinations 3 years later in 1997. After 5 years of working on residential, commercial, institutional and industrial projects in Singapore, as well as commercial and industrial projects in Vietnam, he set up his practice HIL Architects in 1999, and later HILADT Architects LLP, with Raymond Sim in 2005. He has also served as the architectural and project management consultant for several developers.


Hseng Iu was also an external Design Tutor at the National University of Singapore School of Architecture where he helmed a design studio for more than 10 years, well as an External Examiner at several design schools. He has also been active in various other organizations, such as Singapore Swimming Club, where he served as Chairman of its Development Committee, and spear- headed the Strategic and Facilities Committees. He was the Chairman of Opera Estate NC, ExecutiveMember of Siglap CCC, and Co-Chairmanof the EUP Committee. He was also the Chairman of MCST 589’s Council.


He is an Singapore Institute of Architects Arbitrator and Fellow of the Singapore Institute of Arbitrators as well as an Associate Mediator at the Singapore Mediation Centre and an accredited Singapore International Mediation Institute Mediator.


Raymond Sim


Registered Architect, BOA Green Mark manager, ASEAN ARCH, APEC ARCH

Born in Sarawak, East Malaysia, Raymond Sim came to Singapore in 1988 to study architecture at the National University of Singapore, where he was the faculty’s top student in 1990, won a book-prize in 1991 and was selected for the Students’ Exchange Programme with  University of Newcastle-Upon-Tyne in 1991-1992. He graduated in 1994 with an Honours Degree, and passed the Board of Architects professional examinations 3 years later in 1997. He worked at Raymond Woo & Associates Architects soon after graduating, gaining experience in various project types, from residential (landed and high-rise), commercial, hospitality, institutional and industrial projects in Singapore, to projects in Vietnam and designed projects in Malaysia, Sri Lanka, Bhutan, China and Indonesia. In 2005, he set up HILADT Architects LLP with partner Hseng Iu Lim.


Since 2006, he has also served as an external Design Tutor at the National University of Singapore School of Architecture.


Raymond Sim’s motto in life can be defined as ‘Carpe Diem’ or ‘Seize the Day’. He relishes every opportunity to create and have new experiences. His view of architecture is one functionality, constructability and sustainability. He is an architect who has combined his passion for life with cool pragmatism and professionalism.


Hsiang Iu Lim

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Registered Architect, BOAM.S.ARCH UD (COLUMBIA), M.SIA  

HSIANG IU has worked in both the private sector as well as the public sector.  After obtaining his professional degree in 1990, he joined the Urban Redevelopment Authority (URA) as an Architect and in 1992 he was awarded the prestigious URA Overseas Post Graduate Scholarship.  After completing a Masters Degree at Columbia University in 1995, he returned to assume a leadership role in his Division where he headed all architecture and urban design projects for his division.  His involvement in urban design projects included conceptualizing the Master Plans of the Civic District, Singapore River, Punggol, Changi Point, and the Kampong Glam & Little India Conservation Districts. He established broad concepts for  the Lighting Master Plan of the Civic District and the Aesthetic Treatment of Waterbodies in Singapore which are currently implemented by LTA and NParks. 


He left for private practice in 1999 where he designed and managed a variety of projects such as the United Parcel Service Asia Pacific HQ and World Wide Logistic Centre.  After ten years, he sought to widen his experience in other fields of management and spent the two years working with Capitaland, one of Singapore’s largest property developers. His primary responsibility was the product development of its residential products to fulfill the marketing goals of the company.  This was not limited to the actual product but included tasks linked to the effective marketing of the product, such as the setting up and furnishing of show flats. The scope of his purview included projects like the Shelford Condominium, Levelz Condominium, Palm Haven & Sun Haven Condominium; and Chrysanthemum Park I & II in Shanghai.  In 2000, Hsiang Iu established HSI Architects as a sole proprietor. In a period spanning 23 years, he has built over three hundred residential houses for private owner and property developers. In addition, he has also undertaken small and medium scale commercial and industrial projects; like purpose-built childcare centres and food and pharmaceutical storage facilities.


In 2023, HSI Architects was merged with HILADT Architects to consolidate and upgrade management resources.

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Chung Chia Ling


Registered Architect, BOA 

Chartered Member, RIBA


Elaine Ramirez

Senior Associate

B.S Architecture Phils. REG ARCH



Executive Assistant

Jen is an organised individual with good communication and interpersonal skills, and has over 30 years of experience in C&S and architectural field as an administrator; co-ordinating, administering and managing authorities submissions.  She enjoys working independently as well as in a team and believes in her ability to keep everyone organized and on schedule to achieve our goals and objectives.


Positive thinking always!


Gary Mok

Technical Manager

Diploma in Architectural Technology, Singapore Polytechnic


Gary has 28 years of experience, and has a great passion in architectural drafting and detailing. He is always eager to learn more, constantly setting higher standard for himself as he strives for higher level of competency.

Being a family man, Gary enjoys spending time with his family as well as playing football and badminton.

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Moh Moh Hlaing 

Architectural Associate

B. Arch, Licensed Architect (Myanmar)

Prior to joining HILADT Architects LLP in 2023, Moh Moh had worked at DNH Architects in Myanmar for over 10 years where she rose to the position of Senior Architect. She is a Licensed Architect registered by the Association of Myanmar Architects. 


Moh Moh is an enthusiastic team player who never hesitates to share her knowledge and experiences with others and also ever willing to learn from others. She endeavors to always carry out her duties responsibly and with due diligence and efficiency.


A shy person by nature, Moh Moh loves travelling and trekking, sewing, photographing nature and watching nice, happy movies, especially with her special friend, her cat.


Hnin Wai

Architectural Associate

B. Arch, Licensed Architect (Myanmar)

Hnin Wai graduated from the Technological University of Hmawbi in Yangon with a Bachelor of Architecture degree and has over 10 years of professional experience. She is passionate about architectural design and detailing, always eager to update her knowledge with new and modern ideas and innovations.


In her free time, Hnin Wai enjoys cooking, reading, watching movies and gardening. She is also always eager and willing to broaden her experiences and to discover and learn new skills.


Indah Saat

Architectural Assistant

BCA I-Build Scholar

Indah is a BCA I-Build Scholar and received her architectural diploma in 2022. At HILADT Architects, she is part of a tea, that focuses on residential, commercial, and institutional projects.

Indah always maintains a positive mind-set and views all commands as criticism as a learning opportunity. She believes that as she progresses, all these learning opportunities will make her grow and develop into more competent and knowledgeable part of the team.

Indah has a motorcycle which she loves. She enjoys night-time rides with her friends to enjoy the wind caressing her cheeks. Oh, and she loves her cats!


Mandy Lew

Architectural Intern

NUS B.Arch, NUS M.Arch,

BCA I-Build Scholar


Sharlene Sow 

Architectural Intern 


+65 6779 8018


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