About the document
- Country:
- Thailand
- Category:
- Land and property
- How to fill:
- Chat in any language → original form → PDF
- Price:
- from 15 credits
- Last updated:
What this document is
Form T.D. 21 (ท.ด.21) is the standard power of attorney of the Department of Lands of Thailand (กรมที่ดิน). This version has the subject “buy land” (ซื้อที่ดิน) printed: the grantor — the buyer — authorises an attorney to buy the land plot described at the top of the form from the named seller at the stated price and to make statements to the land officer until the transaction is completed.
The form is one page in Thai. It identifies the plot by its title deed (โฉนดที่ดิน): map sheet, land number, survey page, deed number and location.
Who fills it in and where it is used
- the grantor (ผู้มอบอำนาจ) — the buyer who cannot attend the Land Office in person;
- the attorney (ผู้รับมอบอำนาจ) — the person who will register the purchase on the buyer's behalf;
- the form is handed in at the Land Office (สำนักงานที่ดิน) responsible for the plot;
- if the attorney is the seller or acts for the seller, the form requires an extra consent sentence (see the remark box on the form).
- Thai law generally restricts land ownership by foreign nationals; check eligibility with the Land Office before relying on this form.
What the form asks for
- title deed details of the plot and its sub-district, district and province;
- place and date (year in the Buddhist Era, พ.ศ.);
- for the grantor and the attorney: name, Thai ID number, age, ethnicity, nationality, parents' first names, address and phone;
- buildings included in the purchase (house, building or shophouse, floors, number, house number), the seller's name and the price in figures and in words;
- handwritten signatures of the grantor and two witnesses.
Documents usually attached
- copies of the identity documents and house registration of the grantor and the attorney;
- documents of the plot and of the transaction requested by the Land Office.
The form itself does not list attachments, fees or taxes — check them with the Land Office handling the plot.
How to fill it in with FoxDocs
- Answer the chat questions about the plot, the grantor, the attorney, the seller and the price.
- The assistant writes the values in Thai script, splits the ID number into the boxes, marks the titles and converts the year to พ.ศ.
- Download the PDF, check it, print it and sign it in front of two witnesses.
Source
Official file of the Department of Lands (http://www.dol.go.th/DocLib2/ซื้อ.pdf), archived copy: https://web.archive.org/web/20180619190222id_/http://www.dol.go.th:80/DocLib2/%E0%B8%8B%E0%B8%B7%E0%B9%89%E0%B8%AD.pdf (checked 2026-10-08).