Building and Construction Permit in Thailand

Step-by-Step Guide: Getting a Building and Construction Permit with Siamconsult

With SiamConsult, your construction project is in the hands of experts. We help you every step of the way—making Thailand’s rules clear, the process smooth, and your peace of mind our top priority.

Step 1: Consultation & Location Assessment

• We help you by listening to your vision and reviewing your land or project site, whether you’re building a new villa, resort, or commercial space.
• Step-by-Step Guide to Getting a Building and Construction Permit in Thailand. Full support, compliance, and permit management for your project.
• For more on our service areas, see our pages for Krabi, Ao Nang, Koh Lanta, Phi Phi, Phang Nga, and Phuket.
• Our expert team checks local municipal and zoning rules in your chosen location.
• We help you by clarifying exactly what is allowed in your area and flagging any local restrictions before you invest further.

Step 2: Architectural & Engineering Plans

• We help you by connecting you with qualified Thai architects and engineers to create detailed plans that meet Thai law.
  

  Thai law requires:

  • A licensed architect for design compliance

  • A licensed civil engineer for structural safety and calculations

  We use professionals who are registered with the Council of Engineers (COE) or the Association of Siamese Architects (AS

• We review and fine-tune your designs to ensure compliance with local building codes, zoning regulations, and safety standards.

• For more information on Thai building codes, please visit the Ministry of Interior’s Department of Public Works.

• We explain all technical and legal requirements so you can make decisions with confidence.

Step 3: Document Collection, Due Diligence & Application Preparation

Before applying, we gather:

• Land title deed (Chanote or Nor Sor 3 Gor)

• House registration book (Tabien Baan, if existing)

• ID or passport of landowner(s)

• Power of Attorney (if using a representative)

• Construction plans signed by a licensed Thai engineer or architect

• Structural calculations and soil test results (for larger buildings)

• Environmental Impact Assessment (EIA) if required

• We help you gather all required documents: land titles, company papers, blueprints, engineering reports, and other supporting evidence, with full Due Diligence of the land.
• We complete every form, translate and verify details, and double-check everything to avoid delays at submission time.
  For more about title and lease registration, visit Land Ownership and Lease Registration Guide.
• If any documents are missing, we help you track down alternatives and ensure your files are submission-ready.

Step 4: Submission & Municipal Review

• We submit your application package to the correct local authority, ensuring it reaches the designated office at the Local Municipality (or Or Bor Tor) the first time.
• We handle all communication with municipal or district officials, answer follow-up questions, and resolve any concerns quickly. To understand related legalities, see our Legal Contract Services.
• Need to understand the official process? Review the Thai Embassy Building Lease agreement or contact us directly.

Step 5: Site Inspection

• Review time: 30–45 working days for standard houses; up to 120 days for complex/commercial projects

• The office may request corrections or adjustments

• Construction cannot begin until the permit is officially issued.

• We help you by coordinating site inspections and preparing your location so it passes on the first attempt.
• If the authorities request changes or further details, we’re there to assist, explaining, negotiating, and fixing issues efficiently.

Step 6: Approval & Permit Collection

• We track your application status, keep you updated, and collect your official permit as soon as it’s issued.
• Your permit is delivered directly to you—no queues, no guesswork, just fast results.
• We guide you on how to display and use your permit so your build remains fully legal and insured.
• If you plan to operate a business on your property, explore our Business Licenses Overview to find out what licenses are necessary. We help with all applications and your accounting services, like tax and VAT.

Step 7: Ongoing Support & Legal Updates

• We help you by monitoring any new building regulations or changes to local law that could affect your project.
• We’re always available to assist with further inspections, occupancy certificates, or any new documents you may need—even after construction is done.

  We are full-service providers for all the administrative needs it takes to run the project.

• For general guidance on property and land, see our resource on land ownership and lease registration.

Want your construction project and permit processes handled by local experts?

Contact SiamConsult today and enjoy a stress-free, fully compliant building experience from start to finish.