UNEP’s Global Status Report for Buildings and Construction 2025-2026 delivers an uncomfortable verdict: the buildings and construction sector, driving 37% of global CO₂ emissions and nearly half of all material extraction, is building faster than it is decarbonising. For India, urbanising at unprecedented scale, this challenge is existential.

The Scale of the Challenge

• Globally, floor space grew 20% over the past decade while building emissions rose 6.5%, a partial success.
• The gap to meet the Paris Agreement goals is widening, not shrinking.
• Construction is outpacing clean energy transitions, and fossil fuel dependence in heating and cooking persists.
• No country's NDC 3.0 included an extensive buildings and construction strategy.

Scenario in India

• The report explicitly flags India as a case requiring urgent intervention to avoid locking in carbon-intensive infrastructure.
• Positively, India has expanded rooftop solar through targeted incentives, and Tamil Nadu is already mainstreaming low-carbon procurement in public construction; nascent but meaningful signals.

The Policy Imperative

Affordable housing and climate action are inseparable. Passive design, zero-emission building codes, and renewable integration must be embedded structurally into India's urban planning frameworks, not treated as aspirational add-ons. The building stock being constructed today will define India's 2050 emissions baseline. The window to get this right is narrow, and narrowing still.