About the document
- Country:
- Thailand
- Category:
- Land and property
- How to fill:
- Chat in any language → original form → PDF
- Price:
- form free · chat ฿149 per document
- Last updated:
What this document is
หนังสือมอบอำนาจ (ท.ด. 21) is the standard power of attorney form of Thailand’s Department of Lands (กรมที่ดิน). This version has the subject “ขายที่ดิน” — sale of land — printed on it. With it the landowner (principal) authorises another person (agent) to sell the plot at the Land Office on his or her behalf: file the application, give statements to the officer and sign until the transaction is completed.
The form records the land as shown on the title deed (โฉนด): map sheet, land number, survey page, deed number, sub-district, district and province. The powers text names the building on the land (if sold with it), the buyer and the price. The form is filled in in Thai.
Who makes it
- the principal — the landowner named on the title deed (ผู้มอบอำนาจ);
- the agent — the person who goes to the Land Office (ผู้รับมอบอำนาจ);
- two witnesses who certify the principal’s signature or fingerprint.
If the agent is the buyer or represents the buyer, the note on the form requires adding consent that the agent acts both in his or her own name and on behalf of the other party.
What the form asks for
- place and date (year in the Buddhist Era, พ.ศ.);
- land details from the โฉนด title deed;
- name, Thai ID number, age, race, nationality, parents’ names, address and phone of the principal and of the agent;
- the building on the land (house, building or shophouse, storeys, house number) — if sold together with the land;
- the buyer, the price in figures and in words;
- signatures of the principal and two witnesses — by hand.
Documents usually attached
- the original title deed (โฉนดที่ดิน);
- copies of the principal’s ID card and house registration, signed by the principal;
- the agent’s ID card or passport;
- where relevant — marital status documents or the spouse’s consent.
The exact list, fees, taxes and processing time are not stated on the form — check with the Land Office (สำนักงานที่ดิน) where the land is registered. Under Thai law a foreigner generally cannot acquire land, so check this in advance.
How to fill it in with FoxDocs
- Open the chat on this page and describe the deal in any language: who sells, who will act as agent, which plot and for how much.
- Send photos of the title deed and ID cards or answer the questions — the assistant writes the data in Thai script and converts the year to พ.ศ.
- Check the fields and download the PDF.
- Print it, sign it before two witnesses and hand it to the agent with the title deed and copies of documents.
Source
Thai Department of Lands form “หนังสือมอบอำนาจ (ท.ด. 21) — ขาย”: dol.go.th — ขาย.pdf (Wayback archive copy); Department of Lands: dol.go.th. Checked on 2026-10-08. This is not legal advice.