About OneAsiaConsult

"A Better Place for Work, Live and Play."

OneAsiaConsult Pte Ltd was established in 2011 by a team of qualified professionals with vast experience in Mechanical and Electrical (M&E) building design.

Our professionals have delivered consultancy services across Singapore, Vietnam, Myanmar, Malaysia, India, Sri Lanka, Brunei and Cambodia — spanning healthcare, education, commercial, industrial, residential, and mixed-use developments.

We approach every project with a dual focus on active and passive design: balancing methodology, material choices, and engineering solutions to achieve optimal energy performance without compromising cost or aesthetics.

Company Profile

Founded

2011

HQ

Singapore

Operations

7 Countries

Disciplines

M&E Engineering

Staff

Senior Engineers + Associates

Founded

PEB · ASHRAE · IES · Greenmark · IMechE

Our Vision

TO BE A LEADER IN ENERGY EFFICIENT AND SUSTAINABLE BUILDING DESIGN

Our Mission

TO PARTNER, DESIGN AND IMPLEMENT PROJECT EXCELLENCE FOR OUR VALUED CLIENTS

Our Values

Precision

Engineering accuracy in every system

Sustainability

Green-first design philosophy

Partnership

Collaborative from brief to handover

Innovation

Smart technology integration

OUR STRUCTURE

Built for Delivery.

V. Devaraja

Director

Praful J. Desai

Associate/PE

Chan Heng Lim

Associate/PE

Darren HK Tok

Associate

D. Subathra

Project Manager

Yap Choon Siong

Associate/PE

Anthony Yen

Associate

OUR PEOPLE

The Engineers Behind Every System.

Director 45+ Years

V. Devaraja

BSc Mechanical (Distinction), John Moores University Liverpool UK, 1979 · MBS, Monash University, Australia, 2003

Chartered Mechanical Engineer with 45+ years in M&E design across Singapore, Myanmar, India, Malaysia, Sri Lanka, Brunei and Vietnam. Key hospital projects include NUH, NBS, TTSH, KTPH (Singapore) and Sir Kothawela Defence Teaching Hospital (Sri Lanka). Also, The Bridge, Peak & Palm in Phnom Penh, Cambodia.

Since 1979

ASHRAE (USA)

Institution of Mechanical Engineers (UK)

Associate / PE 50+ Years

Er Praful J. Desai

Professional Engineer (Singapore)

PE with 50+ years in M&E for data centers, warehouses, industrial, water treatment. Notable: Bukit Barun WTP (Brunei), Bedok WRP, Changi WRP, Abbot Data Center.

Since 1973

Memberships: PE (PEB Singapore)

Chartered Engineer (UK)

Senior Member IES Singapore

Associate / PE 30+ Years

Er Chan Heng Lim

BEng Electrical & Electronics, University of Aberdeen, UK

PE with 30+ years in electrical engineering across Singapore, Myanmar, Vietnam. Specializes in healthcare, hospitality, infrastructure. Led Woodlands Health Campus, TTSH, NUH, NTU, Waste-To-Energy Plant, Solaries @ One North.

Since 1985

PE (PEB Singapore)

Licensed Electrical Engineer (EMA)

Chartered Engineer (UK)

ASEAN Chartered Professional Engineer

Associate 20+ Years

Darren HK Tok

BCM (Hons), RMIT Australia, 2008 · Diploma Building Services Engineering, Ngee Ann Polytechnic, 2001

Electrical Engineer specializing in ELV systems, project management, commissioning. Notable: UIC Shenton Way, Sentosa Cove Condo, Givaudan Pioneer Turn, NTUC Joo Koon, The Bridge / Peak / Palm Cambodia.

Since 2004

Project Manager 14+ Years

D. Subathra

BEng Mechanical (Hons), National University of Singapore, 2011 · Certifications: CSWA · AutoCAD

Engineering-trained project coordinator with LTA experience. Circle Line expansion (Kim Chuan Depot), Northeast Line expansion (Sengkang Depot). Skilled in tender documentation and deliverables management.

Since 2011

Associate 50+ Years

Anthony Yen

BCM (Hons), RMIT Australia, 2008 · Diploma Building Services Engineering, Ngee Ann Polytechnic, 2001

50+ years in mechanical engineering. Former MD and Technical & Commercial Director Asia Pacific (Kruger Asia). Tunnel ventilation specialist — MRT Singapore, cable/road/MRT tunnels, India metro feasibility.

Since 1972

ASHRAE (USA)

World Road Association

Certified Safety Supervisor (BCA)

ISO 9000

Associate / PE 18+ Years

Er. Yap Choon Siong

Professional Engineer (Singapore)

PE in M&E systems. Healthcare, mixed development, infrastructure projects. Key: NUH Medical Center (NUHMC), Changi General Hospital (CGHMC + CGHIB), South Beach, Sentosa Boardwalk, MRT Circle Line stage 4&5, JT Tower Cambodia.

Since 2007

PE (PEB Singapore)

Singapore Certified Energy Manager

Greenmark Accredited Professional

PROFESSIONAL MEMBERSHIPS

ASHRAE

PEB Singapore

IES

IMechE UK

ASEAN CPE

EMA Singapore

BCA

ISO 9000