New year, New staff, New project

Hello everyone, it’s been a year since I posted an article last time, apologies! Fortunately, we have been very busy with lots of projects, opening a restaurant and also welcomed new members in our team!!! Please check our profiles in ‘About’ section.

We are excited to introduce you all our new project.

New build family home for Mr. Y in Yokosuka

–  Building a post and beam house using traditional Japanese construction methods –

Part 1: Ground survey


For any new build, the ground survey is a vital for creating a building that will last the test of time. So what is a ground survey? Well, as the name suggest, a ground survey is the practice of investigating the qualities of the land on which the house will stand. By assessing the topography, soil, history of the ground we can then design and build suitable foundations.

So why is this important? Put simply, building a house is essentially the same as placing something extremely heavy on the ground. If the ground is soft then naturally, the building will sink and inevitably begin to lean. By conducting a ground survey we can determine how soft the ground is and accordingly, what needs to be done in order to strengthen the ground so that it may give stability to a building that can weigh in excess of 70 tons.

Luckily, the ground on which Mr Y’s house is to be built is very strong. If it wasn’t, we’d have to make many improvements and this is never a cheap exercise. This is why it is so important to choose wisely when purchasing the land for your new home.

Two things that you should consider when choosing land are height and history. In Japan high ground is generally the most stable. The Japanese people have known this for countless generations and therefore, it is common to see the remnants of old foundations on vacant land situated on high ground. As the years go by this ground becomes stronger and stronger.

Gravity dictates that water will pool at the lowest point of a given topography and so low ground is generally soft and muddy. In Japan, low ground that is close to rivers and swamps has traditionally been given over to agriculture.


Having said that, it isn’t always true that high ground is strong ground and this is where history is important. Even high ground, when recently excavated is far weaker than ground that has been continually built upon for thousands of years.

To those of you thinking about building a house, my advice is this: while layout and fittings are important, in the first instance, it’s a good idea to give serious consideration to the ground on which the house will be built.

It’s only started, stay tuned on the progress 🙂





Part1 地盤調査