Off-plan properties
A home for year-round living in Thailand has to work in every month. A holiday flat only needs to look good in the dry season. A full-time home also meets the monsoon, the hot season, smoke in the north and quiet months when tourists leave.
This guide treats the choice as a twelve-month test. It shows which seasons matter in each region, what to check in the building and the unit, and how ownership rules and the right to stay fit together. It also shows how problems unfold in the first year and what you can settle for free before signing.
Most buyers view property in the high season. The sea is calm, the air is clear and the building is full. A viewing in the best month shows the best version of the property. A resident also lives through rain, heat, low occupancy and power cuts. Each of these shows up in the unit, the building or the street.
The test therefore covers three levels. The region sets the climate pattern. The building sets the quality of services. The unit sets comfort inside the walls.
Each region has its own difficult months. A home that suits one region's hard season may fail in another region. The table shows the main seasonal factors and what to check in a property.
| Factor | When it matters | What to check in the property |
|---|---|---|
| Andaman monsoon (Phuket, Krabi) | Roughly May to October | Drainage, roof, access road, sea-facing windows |
| Gulf rains (Koh Samui) | Roughly October to December | Slopes, road access, damp walls |
| Hot season | Roughly March to May | Orientation, insulation, cooling costs |
| Burning season in the north | January to April | Window seals, air filtration, sealed rooms |
| Flood peak in Bangkok | September and October | Ground level, street drainage, parking |
| Low tourist season | Varies by resort | Building occupancy, services, nearby shops |
Phuket and the Andaman coast get most rain from about May to October. Koh Samui on the Gulf side has its wettest period later, around October to December. Bangkok is a large city with steady services, heavy traffic and a flood peak in early autumn. Chiang Mai has cooler months and a strong burning season from January to April.
For a full-time home, the region's hardest months matter more than its best ones. Some residents choose a region whose difficult season suits them. Others plan a few weeks of travel during that period.
The most useful viewing takes place in the region's difficult months. Rain shows how water moves around the building. Heat shows how the unit holds temperature. Low season shows which neighbours actually live there. A second viewing in the hard season is the cheapest check a buyer can make. When a trip is impossible, an agent can film the street and the building after heavy rain.
Air conditioning runs most of the year in a full-time home. The orientation of the unit decides how much heat it takes in. Large west-facing windows heat rooms in the afternoon. Shade, roof insulation and cross ventilation reduce the load. A cooler unit saves money every month for as long as you live there. Ask the seller for recent electricity bills from the hot season.
Humidity stays high for much of the year, and it rises during the rains. Closed rooms, wardrobes and bathrooms without windows collect damp. Ground-floor units and houses near rice fields or rivers face more of it. Dark marks on ceilings and the smell of damp tell more than fresh paint. A dehumidifier helps, but ventilation built into the layout works better over years.
Chiang Mai and other northern provinces face smoke from field and forest fires every dry season. In 2026 the smog was severe, and on 4 April the authorities declared Chiang Mai, Lamphun and Phayao emergency disaster zones. In the north, a home should have rooms that can be sealed and filtered. Good window seals, air purifiers and a plan for a few weeks away make the season easier.
Two types of flooding affect homes. Drainage floods after heavy rain last hours and are common. River and basin floods last longer and are rare. The level of the plot against the street matters more than a flood map. Sandbags stored by the gates of neighbouring houses are a clear warning sign. The flood season in Bangkok and coastal areas peaks in September and October, which makes those months the most honest time to view.
Short power cuts happen in storms, especially on islands and in rural areas. A condo with a backup generator keeps lifts, pumps and security running. A house may need its own backup for the fridge and the internet router. Many condo buildings rebill electricity and water at their own rates. Electricity, water and internet bills in Thai condos depend on those rates and on the meter type, so ask for real bills before signing.
In resort areas some buildings fill with short-term guests in high season and stand half empty later. Shops and cafes nearby may close for months. Service fees then fall short, and maintenance slows. A building with many full-time owners keeps its services steady across the year. Ask the management office what share of units are owner-occupied and which months are quiet.
A condo gives security, shared maintenance and a backup generator in most larger buildings. A house gives space, a garden and privacy, with full responsibility for repairs. For a first year in Thailand, a condo usually means fewer daily tasks. Families and owners of pets often move to a house later. Comparing a condo and a villa in Thailand helps to weigh space against upkeep.
A foreigner can own a condo unit in freehold. Foreign owners together may hold up to 49% of the saleable area of a building. Land usually stays in Thai hands, so a house is often held through a registered lease of up to 30 years. As of mid-2026, proposals for 99-year leases and a higher condo quota have not become law. Contract options to renew a lease are promises between the parties. Buyers should ask for written confirmation of the free foreign quota before paying.
Owning property in Thailand does not grant a visa by itself. Year-round residents use separate routes, such as a retirement visa, a long-term resident visa, a membership-based programme or a visa linked to work. The visa plan and the purchase should be set up together, since one does not follow from the other. Some long-stay visas require proof of address, which a registered home makes easier.
In a condo, a registered juristic person manages common areas through an appointed manager and an elected committee. The owner answers for the inside of the unit and pays the common fee. A developer answers for defects in the period set by the contract. Unpaid common fees stay with the unit and block its sale. Condo rules in Thailand and who sets them also decide pets, renovation hours and short-term rentals. In a house, almost every repair falls to the owner.
Problems in a full-time home rarely come alone. They tend to follow the calendar in a predictable order:
Each step on this list can be checked before purchase. Bills, seals, occupancy, backup power and rules are all visible to a careful buyer.
A holiday home sits near the beach. A full-time home needs a hospital, a supermarket, a pharmacy and stable internet. Families also need a school within a reasonable drive. Travel time to a good hospital matters more for full-time residents than distance to the sea. Check the drive at rush hour and in heavy rain.
Different residents put weight on different factors. The main profiles look like this:
A home chosen for a specific daily routine works better than a home chosen for its view. It also keeps a wider pool of future buyers who share that routine.
Several checks cost nothing and save money later. These steps fit into the period before a reservation:
Answers to these questions are free before signing and costly after it. A seller or developer with a good property usually provides them quickly.
Which region of Thailand is best for year-round living?
It depends on which hard season suits you. Bangkok offers steady services, Phuket and Samui offer sea and island life, and Chiang Mai offers cooler months with a smoky dry season.
Can a foreigner own a house in Thailand?
A foreigner can usually own the building but not the land. The land is often held through a registered lease of up to 30 years.
Does buying property give me a visa?
No. A visa is a separate process, such as a retirement or long-term resident visa. The purchase can support some applications with proof of address.
When is the best time to view a home for full-time living?
During the region's difficult months. Rain, heat and low occupancy show how the property performs in daily life.
Is a condo or a house better for the first year?
A condo usually means fewer daily tasks, shared maintenance and backup power. A house suits buyers who need space and accept full responsibility for upkeep.
DDA Real Estate selects condos and houses in Thailand for full-time living. We collect real utility bills, check the building rules and the share of resident owners, and confirm the foreign quota or lease terms in writing before the buyer pays a reservation.
Explore our properties in Thailand and leave a request: we will shortlist homes that suit your daily routine, arrange viewings, including in the rainy months, and help coordinate the purchase with your visa plan.