Bangkok CBD: Condo, Office, and the Mixed-Use Pivot

Questions this report answers

How big is Bangkok's office market and how stressed is it? Per Cushman and Wakefield: total Bangkok office space reached 6.31M🔒 sqm in 2024 (+4%🔒 YoY), but occupied space grew only 2.2%🔒 — sustained tenant's-market dynamic. Q3 2025 Grade A vacancy was 26.0%🔒; Q4 2025 fell to 23.8%🔒 as new completions slowed and tenant flight-to-quality consolidated. Average Grade A gross rent Q4 2025 was THB 943🔒 per sqm per month (up from THB 937🔒 Q3). The structural narrative is bifurcated: top-tier Grade A+ in Wireless-Sathorn commands 98%🔒 occupancy at THB 900-1,100🔒 psm; commodity Grade B and older Grade A struggle.^{[1, 2]}

What's the CBD condo picture? Per Asia Lifestyle Magazine and CondoDee: CBD Sukhumvit and Sathorn condo rental vacancy is 18-22%🔒 vs 8-10%🔒 healthy benchmark — sustained oversupply pressure. The luxury segment (>200K🔒 THB per sqm) shows resilience among high-net-worth Thais and returning expats; super-luxury pre-sales exceed 85%🔒 in prime Sukhumvit and Silom-Sathorn corridors. Inventory in prime corridors sits below 12 months. The structural read: oversupply is concentrated in mid-tier and commodity condo; luxury and super-luxury are tight.^{[4, 5]}

What's the mixed-use pipeline? Frasers Property's One Bangkok flagship (1.83M🔒 sqm GFA across office, retail, hotel, residential) anchors the 2026-2028 CBD supply pipeline. Magnolia Quality Development's IconSiam-2 expansion and The Forestias mega-project add scale. Central Pattana's mixed-use playbook (Central Embassy, Central Westgate) continues across the metro. The structural implication: prime mixed-use developers benefit from flight-to-quality; standalone-office and standalone-condo developers face sustained pressure.^{[3, 8]}

What's the tenant and buyer playbook? Per AdAsia and Bangkok Residential coverage: tenants can exploit the high-vacancy window in 2026-2027 with longer rent-free periods, fit-out contributions, and break-clause flexibility. For condo buyers, the luxury and super-luxury tiers are tight — pre-sales >85%🔒 reduces resale availability — while mid-tier offers buyer leverage. For institutional investors: prime Grade A+ office holds; mid-tier office is structurally challenged; super-luxury condo retains value; mid-tier condo faces capital-value compression.^{[7, 9]}

Executive summary

Bangkok's CBD real-estate market is structurally bifurcated heading into 2026. Office: Grade A vacancy 23.8%🔒 Q4 2025 (down from 26.0%🔒 Q3) per Cushman and Wakefield. Total office space 6.31M🔒 sqm 2024; +4%🔒 YoY supply growth against 2.2%🔒 occupied-space growth — tenant's-market dynamics persist. Average Grade A gross rent THB 943🔒 per sqm per month Q4 2025. The flight-to-quality is real: new Grade A+ Wireless-Sathorn buildings command 98%🔒 occupancy at THB 900-1,100🔒 psm while commodity Grade B and older Grade A struggle.^{[2, 1]}

Condo: CBD Sukhumvit and Sathorn rental vacancy 18-22%🔒 vs 8-10%🔒 healthy benchmark per Asia Lifestyle Magazine. The luxury segment (>200K🔒 THB per sqm) shows resilience; super-luxury pre-sales exceed 85%🔒 in prime corridors per CondoDee with inventory below 12 months. The bifurcated picture: oversupply concentrated in mid-tier and commodity; luxury and super-luxury tight. For Thai-listed developers, this favours those with strong luxury portfolio (Sansiri 98 Wireless and Khun by Yoo brands) over commodity-focused names.^{[4, 5]}

Mixed-use is the structural pivot. One Bangkok (Frasers Property), IconSiam-2 (Magnolia), Park Silom, and Central Pattana's metro pipeline anchor 2026-2028 supply. Prime mixed-use commands flight-to-quality benefits; standalone-office and standalone-condo developers face sustained pressure. For tenants, 2026-2027 is the exploit-the-window tenant's-market opportunity per AdAsia. For institutional investors, position in prime mixed-use and super-luxury condo; avoid commodity-tier exposure.^{[3, 7, 8]}

Office and condo market metrics at a glance