Our Team

Should you have any enquiries or need to contact our team, please contact us at +65 6764 2012 or +65 6764 0563, whatsapp us at +65 8028 8304 or email us at nexus@guanleeheng.com.sg.

Management:

Sim Lye Huat (Mr) Managing Director

Debbie Sim Kim Gui (Ms) Director (Ext: 13)

Administration:

Mdm Tan Administrator (Ext: 11)
Grace Kong (Mdm) Administrator (Ext: 12)

Design:

Tan Vie Khuen (Mr) Landscape Architect / Designer (Ext: 14)

Operations:

Win Naing Soe (Mr) Senior Project Coordinator (Ext: 14)

Credentials:

Debbie Sim Kim Gui (Ms)   

Director

(Ext: 13)

Debbie specializes in site-specific planting design, implementation, maintenance, tree health & risk assessments, mitigation strategies for urban trees, project coordination and nursery management since 2015. She has designed, implemented, maintained spaces and performed tree assessments for local governmental, commercial and residential projects. Her Master's thesis was one of the selected 20 works exhibited at the ASA International Design Competition DENSITY | DENSE CITY Architect 2015. She was also one of the top 4 achievers to attain a 98% score in the Certified Practising Horticulturist (CPH) report, achieved a Merit award for the Design and Build Category organized by the Landscape Industry Association of Singapore (LIAS) and participated as a competition judge for the Green Thumbs 2016 competition. She believes that ethical landscape design, planning and management is vital in mitigating climate change and restoring our well-being especially with the phenomenon of increasing urbanisation. 

Her design approach includes:

- Site-specific, people-centric, reinventive / rehabilitative / restorative & responsive design

- Low to minimal use of resources & maintenance

- Resilient plant selection that bring ecological benefits

- Restore & rehabilitate greenery and natural habitats within the urbansphere

- Curating aesthetically intriguing & meaningful experiences

- Facilitate abilities to establish on its own, co-exist and thrive.

Her qualifications include:

Master of Landscape Architecture (University of Melbourne) (2012-2015)

Bachelor of Science in Business (Honours) (University of London) (2007-2010)

ISA Certified Arborist (SG-0666A) (International Society of Arboriculture) (2015-2024)

ISA Tree Risk Assessment Qualified (TRAQ) (International Society of Arboriculture) (2019-2024)

Certified Practising Horticulturist (CPH-SG-18/0241) (Centre for Urban Greenery & Ecology, Australian Institute of Horticulture, Inc.) (2018-2024)

Certified Pesticide Operator - Singapore Food Agency (SFA) (2016-2025)

Certificate in Hydraulic Excavator Operation - Building and Construction Authority (BCA) (2022)

Advanced Certificate in Workplace Safety and Health - NTUC LearningHub Pte Ltd (2017)

Certificate in Managing Work-At-Heights course - NTUC LearningHub Pte Ltd (2016)

Certificate in Occupational First Aid CPR+AED course - Singapore First Aid Training Centre (2016-2025)

WSQ Certificate: Develop a Risk Management Implementation Plan (2016) - Team-6 Safety Training & Consultancy (S) Pte Ltd

WSQ Advanced Certificate: Implement a tree planting, removal and/or transplanting plan (2016) - Centre for Urban Greenery and Ecology

WSQ Certificate: Treat Plant Health disorders (2019) - Centre for Urban Greenery and Ecology

WSQ Certificate: Install Irrigation Systems (2020) - Centre for Urban Greenery and Ecology

WSQ Certificate: Maintain Irrigation Systems (2020) - Centre for Urban Greenery and Ecology

WSQ Certificate: Aerial Camera Operations (2021) - Music Factory Academy Pte Ltd

WSQ Certificate: Customer Management (2022) - NTUC LearningHub Pte Ltd

WSQ Certificate: Effectiveness Management (2022) - NTUC LearningHub Pte Ltd

WSQ Certificate: Workplace Safety and Health Performance Management (2022) - NTUC LearningHub Pte Ltd

Certificate of Completion: LIAS Professional Membership Initiative, Arboriculture Report Writing for Submission (2022) - Landscape Industry Association (Singapore)

Working Experience: 2012 until present.

Expertise: Landscape design, tree inspections, VTA assessments.

Tan Vie Khuen (Mr)   

Landscape Architect / Designer

(Ext: 14)

Vie Khuen graduated with a Bachelor of Landscape Architecture (Honours) from the Univesity Malaysia Kelantan Campus Bachok in 2021 and was awarded the Dean List Award Semester 8 with a CPA of 3.75. He worked as a Junior Landscape Architect in a design firm in Malaysia and has experience in several large-scale projects such as Lake Side City, Puchong, PT26 Sime Darby, Kota Bahru Trade Centre and Tropicana 172 Plot 2. He is highly-skilled in AutoCAD, Adobe Photoshop, Illustrator, Indesign, Sketchup and Lumion and has participated in the AYDA - Asia Young Designer Award - Nippon Paint design competition. His hobbies include cycling, reading, hiking, music, travelling and watching movies.

His qualifications include:

Bachelor of Landscape Architecture (Honours) (Univesity Malaysia Kelantan Campus Bachok) (2017-2021)

Working experience: 2021 until present.

Expertise: Landscape design and project coordination.

Win Naing Soe (Mr)   

Senior Project Coordinator

(Ext: 14)

                                                                  

Win has over 15 years of working experience within the landscape industry and is a well-versed project coordinator, landscape specialist and technician. He has overseen extensive landscaping projects in Singapore and has strong project coordination and management expertise. He is also able to operate various lorries and landscaping equipment easily.

His qualifications include:

Bachelor of Arts in Geography (University of Distance Education, Yangon)

Certified Landscape Technician - National Parks Board (2010)

Certificate in Workplace Safety and Health Supervisory - NTUC LearningHub Pte Ltd (2010)

Certificate in Hydraulic Excavator Operation (2012) - Building and Construction Authority (BCA)

Certificate in John Deere Skid Steer Loader (2014) - John Deere Asia (Singapore) Pte Ltd

Certificate in Forklift Operation

WSQ Certificate: Workplace Safety and Health Practices Implementation (2022) - NTUC LearningHub Pte Ltd

WSQ Certificate: Horizontal Surface Maintenance (2022) - NTUC LearningHub Pte Ltd

Working Experience: 2008 until present.

Expertise: Landscape operations and project coordination.

Tan Choon Guan (Mr)   

Senior Landscape Supervisor 

Mr Tan has over 22 years of landscaping experience and is one of our most knowledgeable supervisors and technicians. His expertise includes landscape and horticultural implementation and maintenance projects and has wide and extensive knowledge about plant care and maintenance. 

His qualifications include:

Trade Certificate in Horticultural Practices – National Parks Board (2004)

Risk Management Course Certificate – NTUC LearningHub (2007)

Course on Basic Concept in Construction Productivity Enhancement (BCCPE) – Building and Construction Authority (2013)

WSQ Certificate: Maintain Amenity Turf and Open Grassed Spaces – National Parks Board (2016)

WSQ Certificate: Plant, Maintain and Mulch Planted Areas – National Parks Board (2016)

WSQ Certificate: Prune Plants (Not Exceeding 3 Metres in Height) – National Parks Board (2016)

Certified Occupational First Aider – Singapore First Aid Training Centre

WSQ Certificate: Recognise Plants and their Growth Requirements – National Parks Board (2017)

WSQ Certificate: Maintain Workplace Safety and Health Policies and Procedures – National Parks Board (2017)

WSQ Certificate: Implement Environmental Management Practices in the Workplace – National Parks Board (2017)

WSQ Certificate: Select Chemicals and Biological Agents to Manage Plant Health – National Parks Board (2017)

WSQ Certificate: Classify Plants – National Parks Board (2017)

WSQ Certificate: Control risk and safety hazards of sector specific practices – National Parks Board (2017)

WSQ Certificate: Identify symptoms and infestations of pest and diseases in horticultural situations – National Parks Board (2017)

WSQ Certificate: Implement soil / water / plant health management programme – National Parks Board (2017)

WSQ Certificate: Safe Use and Handling of Non-Hazardous Chemicals under Supervision – National Parks Board (2018)

Working Experience: 2000 until present.

Expertise: Horticultural operations, landscape implementation and maintenance.

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