Home Construction Costs Up 2.1% in Q3, Expected to Rise
The Real Estate Information Center (REIC) said Thailand's standard home construction cost index rose 2.1% year-on-year in Q3 2026, driven by a 6.2% jump in structural work and a 13% rise in concrete prices. While overall costs are increasing, developers face limited ability to pass higher expenses onto buyers due to weak purchasing power. REIC warns costs may climb further in Q4 from energy, materials and wages.
The Real Estate Information Center (REIC) reported that the standard home construction cost index (HCCI) for Bangkok in Q3 2026 increased 1.5% quarter-on-quarter and 2.1% year-on-year. The rise was mainly driven by higher costs for structural work and concrete products. Overall construction costs continue to trend upward, although the pressure is not uniform across all material and work categories. This trend matters for housing developers because construction costs are a major part of project expenses, especially for low‑rise housing where structural work and concrete make up a large share. Higher costs could affect sale prices, profit margins and decisions to launch new projects.
Breaking down the index by work type, structural engineering showed the strongest gain, rising 3.6% QoQ and 6.2% YoY. Architectural work increased 0.8% QoQ and 0.6% YoY. Sanitary system work was flat quarter‑on‑quarter but up 1.5% YoY, while electrical and communication systems rose 0.4% QoQ but fell 0.4% YoY.
At the material level, concrete product prices surged 13.2% QoQ and 13.0% YoY, the largest increase in three quarters. Other building materials rose 5.3% QoQ and 7.6% YoY. Electrical and plumbing equipment edged up 0.3% QoQ and 1.0% YoY. Steel and steel products fell 4.1% QoQ but were still up 1.5% YoY. Tiles dropped 3.1% QoQ and 8.5% YoY, and sanitary ware fell 0.6% QoQ and 1.4% YoY. Wood and wood products remained stable.
Overall, construction costs are moving unevenly, with some categories rising and others falling, but structural work and concrete remain the main pressure points this quarter. Despite the cost increases, property developers may not be able to pass all of them onto buyers because purchasing power is weak and access to credit is limited for already‑priced projects. As a result, developers must balance preserving profit margins with keeping homes affordable for consumers.
