Official source library
Thailand official land & property appraisal price
Thailand's Treasury Department (กรมธนารักษ์) publishes the official appraisal price used under the Land and Building Tax Act (B.E. 2562) as open datasets. Here they are indexed in an AI- and search-readable, citable form: each dataset carries its official source, coverage, format and update date, and links directly to the official file. We only index and link — we do not alter or resell official data.
Published by: Treasury Department of Thailand (กรมธนารักษ์)
Official appraisal datasets
Land appraisal price (ราคาประเมินที่ดิน)
Official land appraisal price for all 77 provinces — one CSV per province, listing appraised value per parcel keyed by cadastral map sheet (ระวาง) and parcel number. Statutory basis for land and building tax.
This is the full per-parcel dataset (Phuket alone ≈ 216,000 rows) and needs a cadastral map-sheet number to locate a specific parcel. To check one parcel, use the official lookup below.
Coverage: 77 provinces · one CSV each · Format: CSV · Official update: 2026-05-13 · License: Open Data Common
Condominium appraisal price (ราคาประเมินอาคารชุด)
Official appraisal price for condominium units that hold a title deed under the Condominium Act.
Coverage: Nationwide · single CSV · Format: CSV · Official update: 2024-08-15 · License: Open Data Common
Building / structure appraisal price (ราคาประเมินสิ่งปลูกสร้าง)
Official appraisal price standard for houses, buildings and other structures.
Coverage: Nationwide · single CSV · Format: CSV · Official update: 2024-08-14 · License: Open Data Common
Other land-type appraisal price (ราคาประเมินทุนทรัพย์ที่ดินประเภทอื่น)
Official appraisal price for land types beyond the standard categories above.
Coverage: Nationwide · single CSV · Format: CSV · Official update: 2024-08-05 · License: Open Data Common
Look up a single parcel / unit
The datasets above are full per-parcel files. To check the official appraisal of one plot or one condo unit, use the Treasury Department's official lookup.
What the official appraisal price is, and how to use it
- The official appraisal price (ราคาประเมิน) is set periodically by the Treasury Department and is the statutory basis for land & building tax and transfer fees.
- It is a statutory reference and is usually lower than the market transaction price; check real listings and sales for market value.
- Land is priced per parcel by cadastral map sheet (ระวาง) and parcel number; condominiums and buildings have their own separate standards.
This page is compiled by Tafei AI from Thai government open datasets. It is for reference only and is not investment, tax or legal advice; the official file prevails. Data is updated as the government publishes it. Official update: 2026-09-10