Building owners and facility management teams often ask: “Can a building that has been in operation for many years achieve an internationally recognized green building certification such as LEED without requiring a substantial capital expenditure (CapEx) budget for renovations?”
The technical approach under the USGBC framework: Under the LEED v4.1 O+M (Operations and Maintenance) rating system, assessment focuses on actual operational performance rather than design simulations, and major infrastructure replacement is not a universal requirement. LEED O+M evaluates real-world building performance based on operational data collected over a continuous 12-month period.
Therefore, existing buildings—even those that have been in operation for more than 10 years—can potentially achieve LEED Gold or Platinum certification by fine-tuning existing building systems, analyzing and evaluating operational performance data, implementing efficiency optimization measures, and standardizing management procedures in accordance with international standards.
Unlike rating systems for new construction, LEED O+M places a strong emphasis on actual operational performance.
Below are the five key categories of operational data that building owners and facility management teams should prioritize:
- Energy Performance: Review and assess energy consumption data collected over a continuous 12-month period, alongside an evaluation of the actual operational efficiency of the building’s mechanical, electrical, and plumbing (MEP) systems.
- Indoor Environmental Quality (IEQ): Conduct on-site indoor air quality measurements and implement green operational policies.
- Water Efficiency: Standardize the measurement and recording of actual domestic and process water consumption over a 12-month period.
- Resource and Waste Management: Periodically measure and record actual waste generation, and implement waste segregation at source to increase recycling rates.
- Sustainable Transportation and Purchasing: Survey the transportation modes used by building or factory occupants and establish policies that prioritize sustainable purchasing.
AgriS’s sugar and by-product manufacturing plant in Tay Ninh achieved LEED v4 O+M: GOLD certification in July 2026. It is the first and only sugar manufacturing facility in Vietnam to achieve LEED Gold certification.
A Cost-Optimized Implementation Roadmap for Building Owners
To help existing operational buildings pursue LEED O+M certification without disrupting day-to-day operations, VILANDCO works alongside building owners through a specialized implementation roadmap that includes:
- Project Feasibility Assessment (FS): Conduct an on-site assessment of existing infrastructure and review baseline operational data to determine a realistic target score and identify gaps against USGBC requirements.
- Low-Cost/No-Cost Optimization Strategy: Recommend solutions tailored to actual operating conditions, with priority given to measures that eliminate or minimize capital expenditure on new equipment.
- Process Standardization and 12-Month Data Tracking: Advise on the development and implementation of sustainable operating policies, while establishing systems for storing, monitoring, and tracking data in accordance with applicable USGBC/GBCI requirements.
- On-Site Measurements and Verification: Conduct on-site measurements and performance assessments, finalize supporting documentation and policies, and work closely with building owners throughout the implementation and review process conducted by GBCI/USGBC.
VILANDCO – Your Partner in Sustainable Building Operations
Drawing on hands-on consultancy experience across a wide range of long-operating facilities, VILANDCO has worked with large-scale Grade A and Grade B office buildings, including Landmark 72 (Keangnam Landmark Hanoi), Saigon Tower, Centec Tower, A&B Tower, Cornerstone Building, and Halo Building, as well as industrial manufacturing facilities such as Quan Dat Factory, TTCS Factory, TTT Corporation Factory, and Huy Hoang Lock Factory. Each facility presents its own unique operational characteristics and challenges.
The most effective solution does not lie in applying a one-size-fits-all formula, but in the ability to conduct in-depth technical analysis and develop a tailored roadmap for data measurement, monitoring, and operational expenditure (OpEx) optimization for each project.
The VILANDCO expert team is committed to identifying the most appropriate technical solutions for each facility’s existing conditions, helping building owners pursue certification through an efficient, transparent, and cost-effective process.
If your company or facility management team would like to arrange a feasibility assessment for an existing operational building or factory, please contact VILANDCO:
🏢 VILANDCO – Comprehensive Solutions for Green Buildings
🌐 Website: vilandco.vn
✉️ Email: contact@vilandco.vn
📞 Hotline: (+84) 332 624 117 | (+84) 83 405 8666
📍 Offices: Hanoi and Ho Chi Minh City