Buyer guide

Online Tools for Buying Property in Thailand

Buying a property involves more than finding the right listing. A number of online tools can help you estimate transaction costs, research land and property records, investigate developers, check nearby development, and even understand how sunlight or flooding may affect a property.

Thailand has a surprising number of official online property tools, although expectations should be realistic. Many are available mainly or entirely in Thai, some have dated or difficult interfaces, and the amount and completeness of information can vary considerably.

They are best treated as additional research tools rather than substitutes for proper due diligence. Used selectively, however, they can still provide useful information before buying.

Costs & transfer

Thailand Property Transfer Tax Calculator

Before agreeing on a purchase, it is useful to understand the costs that may be payable when the property is transferred at the Land Office.

Our Thailand Property Transfer Tax Calculator estimates the main taxes and fees involved in a Thai property sale and provides a breakdown of the likely costs for the buyer and seller.

It can be particularly useful when comparing purchase prices or negotiating how transfer expenses will be divided between the parties.

Useful for: Estimating the total transaction costs before making an offer or agreeing on a sale price.

Calculate transfer costs

The final taxes and fees are determined by the Land Office. The calculator should therefore be treated as an estimate rather than a final statement of costs.

Official Department of Lands service

e-QLands Plus

e-QLands Plus is one of the Department of Lands' digital services and includes tools related to Land Office transactions.

Among its functions are preliminary calculations for fees and taxes associated with certain registrations, as well as appointment services for participating Land Offices.

For buyers, the government's own fee calculator can provide another reference when estimating the costs of a transaction.

As with many Department of Lands services, the interface is primarily intended for Thai users and may not be particularly convenient for foreign buyers.

Useful for: Preliminary Land Office fee calculations and accessing certain Department of Lands services online.

Open e-QLands Plus (opens in a new tab)

Land & property information

Official Department of Lands service

LandsMaps

LandsMaps is one of the more useful Department of Lands tools for researching land in Thailand.

It can help locate land parcels and display geographic and cadastral information associated with them. Depending on the area and available records, additional information may also be accessible.

For someone buying a house or land, this can help establish where a parcel is located and understand the surrounding plots.

It can also occasionally be useful for condominium buyers. For example, if there is a large undeveloped parcel directly in front of a sea-view condominium, investigating the surrounding land may provide more information than simply assuming today’s view will remain unchanged.

Coverage and available information vary, and the service is not especially friendly to non-Thai speakers.

Useful for: Locating land parcels and researching the land surrounding a property.

Open LandsMaps (opens in a new tab)

Official Department of Lands service

CondoMaps

The Department of Lands also provides condominium-related mapping and information services through CondoMaps.

Depending on the building and available records, it may provide information relating to condominium buildings, units, title information or official property data.

In practice, coverage and usability can be inconsistent, so we would treat CondoMaps as a supplementary source rather than something to rely on when making a purchase decision.

If useful information is available for the condominium you are researching, however, it can provide another official source to compare against other documents and databases.

Useful for: Supplementary research into condominium buildings and units.

Open CondoMaps (opens in a new tab)

Official Department of Lands application

SmartLands

SmartLands is the Department of Lands' mobile application and acts as a gateway to several of its digital services.

Rather than being a single property database, it brings together access to tools and information relating to land, valuations, Land Offices and other Department of Lands services.

It is actively promoted by the Department of Lands — including inside Land Offices — and is worth knowing about if you regularly deal with Thai property.

For many foreign buyers, however, some of the individual services available through it may be more useful than the application itself.

Useful for: Accessing several Department of Lands services from one place.

Open SmartLands (opens in a new tab)

Official property valuations

Official Thai government service

Treasury Department Property Valuation

Thailand's Treasury Department publishes official appraised values for land, buildings and condominium units.

One important distinction should be understood:

Government appraised value is not the same as market value.

A condominium selling for ฿5 million may have a considerably different official appraised value. The government valuation is nevertheless important because official values can be relevant when calculating taxes and fees at the Land Office.

The search tools are primarily designed for Thai users and the information required to find a particular property is not always obvious to someone unfamiliar with Thai property documents.

When the relevant property can be found, however, it provides a useful official reference point.

Useful for: Checking the government's official appraised value of land, buildings or condominium units.

Check official property valuations (opens in a new tab)

Researching a developer or property company

Official Department of Business Development service

DBD DataWarehouse+

A developer's website or sales gallery tells you how the company wants to present itself. The Department of Business Development database gives you a different type of information.

DBD DataWarehouse+ allows users to search Thai registered companies and access corporate information that may include:

  • Company registration status
  • Registered capital
  • Registered address
  • Directors and corporate information
  • Company history
  • Filed financial information

This can be particularly useful when considering an off-plan property or buying from a developer you are unfamiliar with.

The information should still be interpreted carefully. A registered company with significant registered capital is not automatically a good developer, and raw financial filings do not tell the whole story.

It is nevertheless one of the more useful official databases for performing basic background research on the company behind a development.

Useful for: Checking the company behind a developer, project or property business.

Search DBD DataWarehouse+ (opens in a new tab)

Nearby development & environmental approvals

Official Thai environmental database

Smart EIA Plus

Smart EIA Plus can be particularly interesting for condominium buyers.

Thailand requires Environmental Impact Assessments for many types of larger developments. Smart EIA Plus allows users to search environmental assessment records by criteria such as project name, developer, location and project type.

This can sometimes provide useful information about developments that already exist — or projects that may eventually be built nearby.

For example, imagine you are considering paying a premium for a sea-view condominium in Pattaya and there is a large empty plot nearby.

A search of Smart EIA Plus may reveal that a major condominium, hotel or other development on that land has already entered the environmental approval process.

It can also be useful for researching the environmental approval history of the development you are considering buying in.

There are important limitations. The absence of a project from Smart EIA Plus does not mean that nothing will ever be built on a particular piece of land, and the database should never be interpreted as a guarantee that a view is protected.

The interface can also take some patience to use, particularly if you do not read Thai.

Despite those limitations, this is one of the Thai government databases that can occasionally reveal genuinely valuable information to a property buyer.

Useful for: Researching environmental approvals and looking for significant developments planned around a property.

Search Smart EIA Plus (opens in a new tab)

Sunlight, heat & shadows

Shadowmap

The direction a condominium faces can make a significant difference in Thailand.

A west-facing unit may receive strong afternoon sun. Another tower may shade the balcony for part of the day. A swimming pool that looks sunny during a morning viewing may spend much of the afternoon in shadow.

Shadowmap allows you to simulate sunlight and shadows in a 3D environment and change the date and time to see how conditions vary throughout the day and across different seasons.

For condominium buyers, this can help answer questions such as:

  • Will this balcony receive strong afternoon sun?
  • Does another tower shade this side of the building?
  • How much direct sunlight reaches the swimming pool?
  • How will the situation differ between December and April?
  • Is one orientation likely to be noticeably hotter than another?
  • Is paying more for a particular orientation actually worthwhile?

This can be especially useful when comparing several units in the same development.

A computer simulation is not a replacement for visiting the property yourself, and the quality of the result depends on the 3D building data available for the location. But visiting every unit at several different hours and seasons is rarely practical.

Shadowmap therefore provides an interesting additional way to understand a property before making a decision.

Useful for: Comparing condominium orientations and understanding sunlight and shadow throughout the year.

Open Shadowmap (opens in a new tab)

Historical flooding

Official Thai government service

GISTDA Flood Risk Assessment Mapping (FRAM)

For houses, land and low-rise property, flood history can be worth checking before buying.

Thailand's Geo-Informatics and Space Technology Development Agency — GISTDA — provides flood mapping tools based partly on historical satellite data.

Its Flood Risk Assessment Mapping platform, or FRAM, includes information that can help identify areas that have experienced flooding repeatedly over previous years.

This can be useful when considering property in an area where the flood risk might not be obvious during a viewing in the dry season.

It is particularly relevant for:

  • Houses
  • Development land
  • Low-rise projects
  • Property in areas with known drainage problems

Historical flooding does not predict exactly what will happen in the future. Drainage infrastructure changes, development alters water flow, and weather conditions vary considerably from year to year.

But if an area has flooded repeatedly in the past, that is information a buyer should probably know before purchasing there.

Useful for: Investigating the historical flood exposure of houses, land and low-rise developments.

Open GISTDA FRAM (opens in a new tab)

Using these tools together

No single website can tell you whether a property is a good purchase.

These tools become much more useful when several are used together.

Example: checking a sea-view condo in Pattaya

Suppose you are considering purchasing a sea-view condominium. You could:

  1. Use our Thailand Property Transfer Tax Calculator to estimate the transaction costs.
  2. Check available Department of Lands resources for information relating to the property and surrounding land.
  3. Search Smart EIA Plus for significant developments that may be planned nearby.
  4. Use Shadowmap to understand sunlight, afternoon heat and shadows from neighbouring buildings.
  5. Search DBD DataWarehouse+ if you want to investigate the company behind the development.

None of those steps proves that the property is a good investment.

Together, however, they can help you understand the property better and — just as importantly — identify questions worth asking before committing to the purchase.

Example: checking a house or land

For a house or land purchase, the process might instead include:

  1. Estimating the transaction costs.
  2. Locating and investigating the parcel using LandsMaps.
  3. Checking the government's official property valuation.
  4. Looking at GISTDA flood-history data for the surrounding area.
  5. Researching the seller, developer or relevant company where appropriate.

Online tools are most valuable when they help you discover something that deserves further investigation.

A note about Thai government property websites

Thailand has gradually made more land and property information available online, but the experience is very different from using a commercial property website.

Some services are only available in Thai. Some work better on particular browsers or devices. Search functions can be unintuitive, and the information available for one property may be much more complete than for another.

Government databases can also contain information that is delayed, incomplete or difficult to interpret without the underlying Thai documents.

We therefore recommend treating these services as additional sources of information, rather than assuming that an unsuccessful search means that no record exists.

When an important issue is identified, it should be verified through the appropriate documents, authorities or professional advisers.

Need help researching a property in Pattaya?

Online tools are useful, but knowing what to look for — and what the information actually means — is just as important.

If you are considering a condominium, house or investment property in Pattaya, Blue Horizon Condos can help you research the property, compare alternatives and arrange a viewing.

Contact Blue Horizon Condos

Disclaimer: The online services listed on this page are provided as additional research resources. Their availability, interfaces and data may change, and information may be incomplete or outdated. They should not replace verification of title deeds, contracts, Land Office records or professional legal due diligence where appropriate.