What kind of knock-down house can ฿100,000 buy?
Contents
In short
- A ฿100,000 budget has to cover the house, delivery, supports and water and power connections. If those stay at the low end, about ฿60,000–65,000 is left for the house itself.
- Advertised prices for 3×6 m houses differ several times over, because each one includes different things.
- This budget fits a smaller room or a used unit. A 3×6 m open room usually goes over the total, unless the seller includes delivery and supports.
- Before comparing prices, get what is and is not included in writing.
Prices you will see on the market
"From" in a listing usually means the most basic version. That is why the examples below vary so much, even at the same size.
| Example | Advertised price | What to ask |
|---|---|---|
| 3×6 m self-build kit | About ฿49,000 | What is in the kit, and who assembles it? |
| 3×4 m open room | From ฿50,000 | No bathroom. How much electrical work is included? |
| 3×6 m open room | From ฿95,000 | What are the walls, floor and insulation made of? |
| 3×6 m, 1 bedroom, 1 bathroom | From ฿110,000 | Does the price include a septic tank? |
| 3×6 m from a large building-supply chain | About ฿317,000 | How does the specification differ from a basic model? |
| 3×6 m with bathroom, another seller | About ฿445,000 | Which finishes are included? |
Source: prices published on Thai sellers' websites, checked in November 2026. These are a sample of the market. Lower and higher prices exist, and prices can change. We did not request real quotes from these sellers.
How to split ฿100,000
The safe method is to start with the work outside the house, then see what is left for the house itself. The figures below are assumptions that show the method, using the low end for the outside work. With a ฿10,000 reserve, ฿60,000 is left for the house; with ฿5,000, ฿65,000.
| Item | Example budget | Note |
|---|---|---|
| House | ฿60,000–65,000 | What is left after the other items |
| Delivery and lifting | ฿10,000 | Some sellers include it over short distances |
| Supports | ฿15,000 | Depends on the soil and house size |
| Water and power | ฿5,000 | Depends on the distance to the connection |
| Reserve | ฿5,000–10,000 | For extra work found on site |
One seller estimates the outside work like this: footings ฿15,000–45,000, water and power meters ฿5,000–15,000, and a septic or water tank ฿8,000–20,000. Crane-truck companies advertise day rates from about ฿3,500–10,000, depending on the truck (checked November 2026). If your supports or connections cost toward the top of these ranges, less is left for the house than the table shows. Real prices depend on your site. Read more in Preparing your site: ground, supports and truck access.
What this budget can buy
Route 1: a smaller room
If you want something new and need the total to stay on budget, a 3×4 or 3×5 m room leaves more money for supports and connections. In the examples above, a 3×4 m open room starts at ฿50,000. It suits one person, a home office or a serious storage room.
Route 2: a 3×6 m open room, if the budget can stretch
This suits an extra room on land that already has a house, because you can keep using the existing bathroom. But in the examples above, a 3×6 m open room starts at ฿95,000. Add delivery, supports and wiring, and the total goes over ฿100,000 unless the seller includes that work. A self-assembly kit at about ฿49,000 may fit, but ask what the kit contains and who puts it together. Whatever you choose, check what the price leaves out, such as wiring, ceiling, insulation or flooring. If you have to pay for those later, a low price may not be low at all. For layout ideas, see A 3×6 m knock-down house.
Route 3: a used unit
The same money may buy a larger unit, but you have to inspect it and count the cost of moving it. See Buying a used knock-down house: what to check.
Costs people often forget
- 7% VAT: ask whether the price already includes it.
- Delivery beyond the included distance: sellers often set a limit and charge beyond it.
- Lifting: ask whether it is charged per trip or per day, and what happens if the site is not ready.
- Earthwork: filling, levelling and making a route for the truck.
- Waste water: a septic tank and pipes, if the house has a bathroom.
- Paperwork: drawings and fees where a permit is needed. See Do you need a permit to place a knock-down house on your land?
- Moving in: air conditioning, a water heater, curtains and furniture.
Comparing quotes properly
Ask every seller the same list and put the answers side by side. This shows more than comparing the totals.
- The real inside size and ceiling height
- What the walls, roof, insulation and floor are made of, and how thick they are
- How many doors, windows, sockets and lights are included
- Delivery to your actual land, and the cost of lifting
- What you must do yourself, and by when
- The warranty terms and the deposit
Frequently asked questions
Can I compare price per square metre?
As a rough guide, yes, but only if both prices include the same things. Bathrooms and services raise the price per square metre, and small rooms usually cost more per square metre than large ones.
How much should I keep in reserve?
We suggest at least 5–10% of the total budget, because problems with the ground and truck access often only show up on site.
Is delivery usually included?
It depends on the seller. Some include it within a set distance and some charge separately. Give the location of your land and ask for a figure.
Can I buy a basic model and add things later?
Work inside the walls or under the floor, such as wiring and pipes, is harder to add later, so decide on it before ordering. Furniture and a porch are easier to add afterwards.