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
This is the power of attorney form (หนังสือมอบอำนาจ, form T.D. 21) of the Thai Department of Lands (กรมที่ดิน) with the printed subject “ขอแก้คำนำหน้านาม และสกุล ตามสามี” — correction of title and surname to the husband’s. With it the principal authorises another person (agent) to file this application at the Land Office and to give statements to the officer.
The printed powers state that the principal has married, refer to the attached marriage certificate and change the name from “น.ส. …” (Miss, former name) to “นาง …” (Mrs, name with the husband’s surname). The header of the form describes a plot with a โฉนด title deed.
Who fills it in and where it is filed
- principal — the woman registered in the land records under her name before marriage;
- agent — the person who attends the Land Office instead of the principal;
- the power of attorney is filed at the Land Office (สำนักงานที่ดิน) where the land is located;
- it is signed by the principal and two witnesses.
What the form asks for
- land details from the title deed: map sheet (ระวาง), parcel number, survey page, title deed number, sub-district, district, province;
- place and date of signing, year in the Buddhist Era (B.E.);
- principal and agent: name in Thai script, age, ethnicity, nationality, parents’ names, address per house registration, telephone;
- the former name (after “น.ส.”) and the new name with the husband’s surname (after “นาง”);
- the Thai ID number is written by hand in the boxes; signatures by hand.
What is usually attached
- the marriage certificate — the form itself refers to it as attached;
- the original title deed (โฉนดที่ดิน), if requested by the office;
- signed copies of the Thai ID card and house registration of the principal and the agent.
The form does not list all attachments, fees or processing times — check with the Land Office where the land is located.
How to fill it in with FoxDocs
- Answer the chat questions about the land, the principal, her former and new name and the agent.
- The assistant writes the values in Thai script and converts the year to B.E.; the titles “น.ส.” and “นาง” are already printed.
- Download the PDF, check it, write the ID numbers by hand and sign with two witnesses.
Source
Official file of the Thai Department of Lands: https://www.dol.go.th/DocLib2/%E0%B8%82%E0%B8%AD%E0%B9%81%E0%B8%81%E0%B9%89%E0%B8%84%E0%B8%B3%E0%B8%99%E0%B8%B3%E0%B8%AB%E0%B8%99%E0%B9%89%E0%B8%B2%E0%B8%99%E0%B8%B2%E0%B8%A1%E0%B9%81%E0%B8%A5%E0%B8%B0%E0%B8%AA%E0%B8%81%E0%B8%B8%E0%B8%A5%E0%B8%95%E0%B8%B2%E0%B8%A1%E0%B8%AA%E0%B8%B2%E0%B8%A1%E0%B8%B5.pdf (download page: https://www.dol.go.th/form-download/power-of-attorney-form-sample/form-821748365833420800/). Checked 2026-10-08.
