Estimate an indicative THB per square metre and total construction/fit-out cost range for office, retail, industrial, hospitality and medical buildings in Thailand — by finish level and region. Free, unbiased, benchmarked against BAANLYY's construction cost research.
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Pick the closest building type and the fit-out standard you’re planning — these drive the THB/sqm range more than anything else.
Set the gross floor area (GFA) and where in Thailand the project sits.
Indicative estimate only — excludes land, professional/design fees, FF&E, financing costs, VAT and site-specific items such as piled foundations. Based on Bangkok standard fit-out benchmarks for office construction — see Construction Cost Benchmarks in Thailand for the underlying THB/sqm ranges and what moves them. Not a quote, appraisal, or engineering, legal or tax advice; always confirm with a licensed quantity surveyor or contractor before budgeting a real project.
This estimator turns a building type, size and finish level into an indicative THB-per-square-metre range and a matching total construction/fit-out cost range, drawn from BAANLYY's Thailand construction-cost benchmarks in Construction Cost Benchmarks in Thailand. It's designed for early feasibility — sanity-checking a headline number before you brief a quantity surveyor or contractor — not for pricing a specific set of drawings.
Office, retail and industrial ranges come directly from published benchmark data; hospitality and medical are extrapolated from adjacent high-spec asset classes and should be read as more indicative. Within any building type, finish level matters just as much as the base rate: the gap between shell-and-core and premium fit-out is typically 40-80% of the base construction cost, which this tool models as roughly a 0.55x–1.6x multiplier around the standard baseline.
Secondary cities and upcountry provinces typically run 10-25% below Bangkok for equivalent specification, mainly on cheaper local labor and shorter material-haulage distances — that's what the "Upcountry" region setting models here. Resort provinces such as Phuket, Koh Samui and Krabi are the notable exception: costs there often match or exceed Bangkok because imported finishes, specialist trades and heavy equipment frequently have to be shipped or trucked in, and much of the private-villa and hotel-grade stock is built to a higher specification. If you're budgeting in a resort province, the Bangkok setting is the closer proxy.
It doesn't price land, professional and design fees, FF&E, financing costs during construction, VAT, or site-specific items like piled foundations on soft ground — all of which can materially change a real budget. It also can't account for your specific procurement route or how close you are to a contractor's tender cycle; steel, cement and skilled-labor pricing move over the course of a year, so a number that's accurate today may drift before you break ground. Use the development feasibility calculator to layer land cost, financing and exit strategy on top of a construction estimate.
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Educational estimating tool only — not a construction quote, appraisal, or engineering, legal or tax advice. Results depend entirely on the assumptions and benchmark ranges used and are not a substitute for pricing from a licensed quantity surveyor or contractor. BAANLYY and One Life Ventures Co., Ltd. never take paid placement in editorial content.