How To Buy Off-Plan in Thailand in 2026

Buying off-plan in Thailand is a smart way to secure a brand-new property at today’s price.

You pay in stages during construction, often get early-bird discounts, and can choose the best unit before it’s available to the public.

For investors, it can mean strong returns by the time the building is completed.

For lifestyle buyers, it’s a chance to customize details and move into a brand-new home in one of Asia’s most exciting destinations.

In this guide, we’ll walk you through the process, from choosing the right project in Thailand and understanding the legal side to avoiding common mistakes and preparing for handover.

This guide focuses on off-plan projects in Bangkok, though the process applies across Thailand.

Can Foreigners Buy Off-Plan in Thailand?

Yes, foreigners can fully own an off-plan condo in Thailand.

The key rule: foreign buyers can own up to 49% of the total sellable area in any condominium project.

When you buy off-plan, you reserve your unit, pay in stages during construction, and get full ownership (freehold) when it’s completed, with your name on the title deed.

This rule applies only to condos, not land.

Read our full guide here: Can foreigners buy property in Thailand?

Why Buy Off-Plan in Thailand?

Buying off-plan offers several advantages over completed or resale units:

Lower prices. Early bird deals can be 10 to 25% cheaper than after completion.

Flexible payments. Pay in stages over 2 to 4 years during construction.

Value growth. Prices often rise before the project is finished.

Best choice. Pick your preferred layout, floor, and view before others.

Modern living. Brand new buildings offer premium facilities and designs that attract higher paying tenants.

If you choose the right project, buying off-plan can give you more value, more choice, and a better return on your investment.

Step-by-Step Guide To Buy Off-Plan in Thailand

• Step 1: Define Your Goals, Budget, and Property Type

Decide if the purchase is for investment, personal use, or both.

Set your budget, including the unit price, transfer fees, furnishing, and taxes.

Know what’s included, most off-plan units in Thailand are fully fitted but may not come furnished.

• Step 2: Choose the Right Unit

The unit you pick will impact future rental returns, resale value, and how much you enjoy living there.

Avoid:

• Units next to lifts or garbage rooms (noise and smell).
• Units directly under swimming pools (possible leaks).
• Low floors facing empty lots that could become construction sites.

Prioritize:

• Higher floors with clear views.
• Layouts with smart use of space and good natural light.
• Rare layouts or corner units, which tend to resell faster and at better prices.

Of course, a trusted agent can help you avoid mistakes and choose a unit that holds its value over time.

• Step 3: Choose a Reputable Developer

The developer you buy from will determine the quality, delivery time, and after-sales support you receive.

Look for:

• A history of completing projects on time and as promised.
• Clear contracts and good customer service after purchase.
• Solid financial stability.

Well-known developers in Thailand include Sansiri, SC Asset, Raimon Land, Ananda, Origin Property, AP Thailand, and MQDC.

Your agent should help you check the developer’s track record before you commit.

• Step 4: Reserve the Unit

Once you’ve chosen your unit, you’ll pay a booking fee (usually between 50,000 to 200,000 THB) to take it off the market.

Before booking, confirm there’s still space available in the foreign ownership quota if you’re buying as a foreigner.

• Step 5: Sign the Sale and Purchase Agreement (SPA)

Within about 14 to 30 days after booking, you’ll sign the SPA.

At this stage, you pay 10 to 30% of the unit price as your first big installment.

Before signing, review the contract with your agent or lawyer to confirm:

• Payment schedule

• Completion date

• What’s included in the price

• Step 6: Follow the Payment Plan

Off-plan projects usually have a simple payment plan.

For example, a 3-year build might look like this:

Booking fee SPA deposit milestone payments during construction final payment at handover.

If you’re a foreign buyer, all payments must be sent from overseas in foreign currency so you can get a Foreign Exchange Transaction (FET) Form.

This document is required to register the property in your name.

• Step 7: Pre-Handover Inspection

Before you make the final payment, check the property for any defects or poor construction work.

If you can’t be there in person, hire a snagging service (a professional team that inspects every detail of your property (walls, floors, fittings, plumbing, electrical)) and gives you a report so the developer can fix issues before you move in.

• Step 8: Ownership Transfer

When the building is completed, you’ll:

• Pay the final balance
• Pay the common area fee (annual, based on square meters). Covers cleaning, security, pool, and other shared facilities
• Pay the sinking fund (one-time). A reserve for major repairs like lift replacements

Once all fees are paid, the property is registered in your name at the Land Office, and you receive your Chanote title deed.

How to Add Furnishing to Maximize ROI

Developers deliver off-plan units in 4 common ways:

• Empty shell: no finishes or fittings.
• Fully fitted: kitchen, bathroom, and flooring included (most common).
• Semi-furnished: fitted plus some built-in furniture.
• Fully furnished: ready to move in.

This is also where Maison Siam’s work begins. Furnishing and interior design for the rental market is one of our services: a well-designed unit attracts quality tenants faster, holds higher occupancy, and commands better rates than a standard developer package.

Once the unit is furnished it still has to be run — listed, priced, and managed day to day. Maison Siam operates Bangkok rentals as an asset, so an off-plan purchase can move straight from handover into income.

Final Thoughts

Buying off-plan in Thailand can be a sound investment if you choose the right location, developer, and unit — and if you plan for what happens after handover, when the unit needs furnishing, a rental strategy, and day-to-day management before it starts earning. That operating stage is where Maison Siam works. Maison Siam does not sell, broker, or source property — it manages Bangkok units as rental assets once they are owned.

For the purchase itself, Maison Siam’s group company Khorna guides foreign investors through sourcing and acquisition.

Explore buying with Khorna

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Maison Siam runs Bangkok rental properties as an operating partner — in-house team, Superhost performance, transparent monthly reporting. Already own a unit? Estimate its rental income or speak to our team. Looking to buy? Our group company Khorna guides foreign investors through sourcing and acquisition.