THE MISSING 40%: WHY REAL ESTATE IS CRITICAL TO SCOPE 3 EMISSION REDUCTION SUCCESS

As regulatory expectations and stakeholder scrutiny continue to rise in line with global temperatures, companies are under increasing pressure to measure, mitigate and be able to show progress in reducing Scope 3 emissions, defined as indirect emissions spread across an organization’s entire value chain. Yet, a significant portion of these emissions remain ‘under the radar’ because the impact of workplace-related activities is often underestimated and not fully captured. With organizations increasingly rethinking their sustainability strategies to cut emissions further, these overlooked emissions are becoming harder to ignore.

2026 Reality: Full Scope 3 Visibility Is Non-Negotiable

Regulatory initiatives such as the European Union's Corporate Sustainability Reporting Directive (CSRD) and International Sustainability Standards Board (ISSB) are pushing companies towards full disclosure of Scope 3 emissions. While the pace of adoption differs from region to region, the overall trend looks clear. The CSRD has a far-reaching impact, including not only EU-based companies, but for any business with significant operations or revenue there. When coupled with global standards like ISSB and rising investor expectations, what earlier used to be a voluntary exercise is gradually becoming standard practice in leading markets.

Scope 3 emissions constitute the largest chunk of the total carbon footprint of most organizations, often accounting for 80-90% of their overall emissions. In most instances, they are over 11 times higher1 than combined Scope 1 and Scope 2 emissions. However, measuring these emissions is a real challenge due to their indirect nature and reliance on fragmented data sources.

With growing expectations, businesses can’t just rely on partial visibility or superficial estimates. Accurate Scope 3 calculations are important for both meeting compliance requirements and developing credible, defensible sustainability strategies.

The Blind Spot: Real Estate & Workplace Emissions

Many organizations tend to zero in on supply chain emissions, focusing on areas like raw materials, IT equipment, transportation, logistics, and capital goods such as machinery. Although important, this often neglects one of the largest and least represented contributors to emissions: real estate. The energy needed to keep leased office spaces, facilities, and workplaces operational is significant, with buildings accounting for around about 40% of global CO₂ emissions2.

This skewed perception results in significant underestimation of Scope 3 emissions. Real estate isn’t just another operational expense but also a material contributor to an organization’s carbon footprint, making it a key lever for emissions reduction.

Expanding the Scope of Workplace Emissions

To capture Scope 3 fully and accurately, organizations need to broaden their definition of workplace emissions. This should encompass:

• Leased assets: Office spaces and coworking areas
• Facilities management (FM) services: Cleaning, maintenance, and vendor operations
• Employee commuting: Various modes of transportation used to travel to the local office
• Business travel: Emissions generated from longer work-related trips, including taxi rides, flights, and hotel stays
• Work-from-home energy use: Electricity, internet, heating, and cooling

These categories are all interconnected through workplace strategy. Any shift in strategy can directly impact commuting patterns and energy consumption in work-from-home setup, so it is essential to evaluate these elements holistically.

Hybrid Work Is Shifting, Not Reducing, Overall Emissions

The rise of hybrid work has transformed the way emissions are spread in the workplace, but that doesn’t necessarily mean they are reduced.

Many companies are still reporting office usage levels that are well below pre-pandemic levels, often hovering around 30-40%. However, energy consumption within these spaces does not always reduce proportionately due to fixed building operations such as HVAC systems, lighting, and maintenance.

On the flip side, energy consumption has increased in employees’ homes. Usually, residential buildings aren’t as energy efficient as commercial buildings, which may result in higher emissions per unit of energy consumed.

As a result, hybrid work creates intricate trade-offs when it comes to energy consumption across real estate, commuting, and work-from-home scenario. It’s crucial to consider these interconnected sources of emissions and how they interact to enable more accurate measurements and support smart, cost-effective decisions for reducing carbon footprints.

Why Workplace Emissions Remain Underreported

Despite their growing importance, workplace emissions continue to be underreported in Scope 3 frameworks. Some of the key challenges include:

• Fragmented data: Spread across HR, travel, procurement, and real estate systems
• Lack of ownership: No single function accountable end-to-end
• Reliance on estimates: Spend-based models don’t accurately reflect actual usage patterns
• Incomplete scope: Areas like work-from-home and commuting are often excluded

Also read: How Companies Can Baseline Their Scope 3 Emissions

Even among large organizations, only about half of them report some form of Scope 3 emissions, even though these emissions make up majority of overall footprint. These challenges reduce reporting accuracy and make it difficult to pinpoint emission hotspots or effectively prioritize reduction initiatives.

Turning Scope 3 Visibility into Action

The real challenge today isn’t just recognizing the importance of Scope 3 emissions but properly quantifying them.

Therefore, going forward it’s necessary that organizations adopt structured and data-driven approaches that reflect operational realities beyond mere high-level estimates. This will enable stronger reporting as well as better decision-making, all while optimizing both carbon impact and cost.

In the next part of this blog series, we'll dive deep into practical strategies that organizations can implement to reduce workplace-related Scope 3 emissions and transform insights into tangible carbon reductions.

Sources:

1 CDP, Scope 3: Implementing Primary Data and Supplier Engagement Strategies, 2022

2 Global Status Report for Buildings and Construction | UNEP - UN Environment Programme

Author: Sudhanshu Chandra