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Explainer 5 min read· 2 April 2026

What 'Grade A Office Space' Actually Means

Grade-A is the most-used and least-defined term in Indian commercial real estate. Here is a working definition and why it matters for investors.

You will see 'Grade-A' on every fractional deal page. It is a marketing word that also has a technical meaning. Knowing the difference saves money.

The working definition

Grade-A refers to buildings that meet a combination of attributes: prime location, institutional developer, large floor plates (>40,000 sqft typically), professional property management, modern mechanical and electrical systems, and tenancy by top-tier corporates.

Physical specifications

  • Floor plate ≥ 40,000 sqft, preferably column-free or with minimal columns.
  • Floor-to-floor height ≥ 3.6m.
  • 100% power backup with DG redundancy.
  • HVAC with VRV/VRF systems, BMS-controlled.
  • LEED or IGBC green-building certification (Gold or Platinum for premium Grade-A).
  • Dedicated fire, life-safety and evacuation systems meeting NBC norms.

Tenancy and management

Grade-A buildings are typically leased to listed companies, global MNCs, Big Four firms, top-tier IT services, GCCs, and institutional financial services. Management is by international firms — JLL, CBRE, Colliers, Cushman & Wakefield.

Grade-A+ vs Grade-A vs Grade-B

Grade-A+ is the top of the stack: trophy assets in primary corridors (BKC, Nariman Point, UB City, Cyber City). Grade-A is the mainstream institutional stock. Grade-B is older, smaller, or in secondary locations — still leasable, but with higher vacancy volatility and tougher exits.

Why the grade matters

Grade defines rent defensibility (top tenants won't downgrade in a downturn), exit liquidity (institutions buy Grade-A; they don't buy Grade-B), and capex risk (Grade-B properties need more maintenance to hold position).

How to verify the claim

  • Ask for the green-building certification document.
  • Check the property-management firm — a name you don't recognise is a signal.
  • Look up the tenant mix and compare against the claim.
  • Visit the building or ask for a dated video walk-through.

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