Future-proofing Bangkok: The New Quality Standards Reshaping Bangkok’s Office Landscape

Value in Bangkok’s office market is concentrating in assets that are mixed-use, ESG-certified and run around people who use them, and rents already reflect it. For investors and owners, future-proofing is now a capital allocation decision: rent premiums and protected occupancy on one side, structural obsolescence on the other.

Tenants are moving up, and the market is splitting as a result. Between 2021 and 2025, nearly 193,000 sqm of Bangkok's Central Business Areas (CBA) tenants moved from Grade B/C into Grade A/A+ buildings, compared with 65,000 sqm before the pandemic, with much of the movement centred on the Rama IV corridor. Return-to-office reached 90% in 2025, yet tenants are taking less space, so demand now follows building quality rather than attendance.

Rents reflect the divide. Grade A rents are forecast to grow by less than 1% a year through 2030, below inflation of 1.7–1.8%. Modern Grade A+ rents are expected to hold steady, while buildings completed before 2015 face downward pressure. With 68% of CBA stock more than 20 years old, that pressure reaches much of the market, even as CBA prime vacancy is forecast to ease from 31% in 2026 to around 26% by 2030.

For investors, the question is which side of that divide an asset sits on. This paper examines five APAC precincts and identifies three standards that separate the leaders:

1. District synergies – Offices in mixed-use developments rent at 29–34% above standalone buildings, though the premium is narrower in the CBA. Azabudai Hills and Barangaroo South were almost fully pre-leased, Suntec City held occupancy above 99%, and Taikoo Place commands a 15% rent premium. Around 80% of Bangkok's future pipeline is expected to be mixed-use.

2. ESG-certified assets – Certified buildings rent 15% above the market average, and certified prime buildings in the CBA 40% above it, with the gap widening since the pandemic. The benchmark is moving towards "triple platinum": LEED, WELL and WiredScore.

3. People-centric operational excellence – Under the "3-30-300" rule of thumb, occupiers spend about US$3 per sq ft a year on utilities and US$30 on rent, but US$300 on payroll. Buildings that keep people healthy, productive and on site, including through floods and other disruption, protect a tenant's largest cost and the owner's income. Reinvestment also creates value: Suntec City, modernised since 2011, held occupancy above 99% at year-end 2025, while ageing Bangkok stock with no repositioning plan faces obsolescence that leasing incentives alone cannot reverse.

   
   
   

The analysis draws on JLL's office database, one of the most comprehensive office and occupier datasets in the market, with records going back to 1990. It is supported by insights and best practice from specialists across JLL's business lines.