5人家族に適した住宅の広さとは？
国土交通省「住生活基本計画」では、居住人数に応じた住宅面積の水準が示されています。 First, let's take a look at the specific numbers for the size of a house suitable for a family of five.
The minimum required area is 18 tsubo
According to the Basic Housing Plan, the minimum living area required for a healthy and cultured life is as follows. is shown.
Minimum residential area level
Since 1 tsubo is about 3.3 square meters, the minimum required area for 5 people is about 18 tsubo when converted to tsubo.
The amount of space required to live a rich life is 35 to 45 tsubo
In addition, the following guidelines are given as criteria for a more affluent life.
Induced residential area standard (urban type)
Induction living area level (general type)
Induced living area standards are divided into “urban type” and “general type” depending on the area of residence, and in urban areas where land prices are high and housing area is small, a lower level is set than the general type.
In any case, in order to create a comfortable home for a family of five, it is necessary to have an area of 35 tsubo (115 square meters) in urban areas and 45 tsubo (150 square meters) in other areas. There is.
Average guideline for tsubo
Next, let's look at the suitable area based on the guideline for the average size of a house.
Nationwide average housing area is 30-38 tsubo
According to a survey of Flat 35 applicants conducted by the Japan Housing Finance Agency, the national average housing area for custom-built homes is 126.8. square meter. This is equivalent to about 38 tsubo in terms of square footage. Also, the average area of ready-built houses is 100.8 square meters, which is about 30 tsubo.
In other words, if it is an average-sized house, it can be said that it can meet the minimum required area standards for a family of five and also secure a certain amount of spacious living space.
In addition, if the area is 30 to 40 tsubo, the structure is mainly a two-story building, and the floor plan is generally about 4LDK.
Find a custom-built house Consult with an advisor for freeLet's devise a floor plan
Even if you are a family of five, the number of rooms you need will differ depending on the family composition. Here, let's look at the floor plan suitable for living, assuming "a couple and three children".
Estimated floor plan
If you want to have three children each with their own room, 4LDK is a strong candidate for the floor plan. Each child can have a private room, and it is also possible to set up a bedroom for the couple, making it easier to secure an independent living space.
On the other hand, there are cases where 3LDK is suitable for cases such as "I want to secure the size of each room" and "Children are different ages".
In a 3LDK, although it is difficult to give each child their own room, it is possible to use a private room from a child who has reached puberty, and after the child grows up and leaves the nest, the next child can be given a private room. , ensure a spacious living space per room and maintain a comfortable living space.
In the case of 4LDK, the problem is that there will be empty rooms when the children become independent, but with 3LDK, it can be said that it is easier to respond to changes in family composition.
Ingenuity points for a comfortable life
Since a house suitable for a family of five requires a certain amount of space and a certain number of rooms, it is necessary to pay attention to the daily activity line in order to live comfortably. It is important to distribute
As well as the placement of each room, let's consider the location of the water and storage while imagining how you actually live.
In particular, the distance between the washing machine and the veranda, and the route to the kitchen and dining room, are important factors that affect the comfort of your home.
It is important to discuss things with your family and plan a placement that will reduce the burden of housework as much as possible.
Three stories are also an option
Also, if you can't secure enough land, three stories are also an option.
For 3-story buildings, it is necessary to devise the layout more than 2-story buildings, so consult with experts such as architects to find the optimal floor plan.
Market price for building a house suitable for a family of 5
How much does it cost to build a house with a size of 35 to 45 tsubo, which is suitable for a family of 5? It is also important to hold down the
Here, I will introduce the approximate construction cost from several patterns.
Basic concept of construction cost
The construction cost of a detached house is roughly divided into three items: "main construction cost", "incidental (separate) construction cost", and "overhead expenses". increase.
The main construction cost is literally the construction cost for building the main body of the house, and it accounts for about 75% of the total construction cost.
Ancillary construction costs are costs for construction work such as external structures and piping. Overhead expenses are the costs of on-site management, taxes, and procedures required for construction work. When the incidental construction costs and overheads are combined, they account for about 25% of the total construction cost.
If it is simply written as unit price per tsubo, it may not include incidental construction costs and miscellaneous expenses, so be careful.
Construction costs for 35 tsubo to 45 tsubo
Based on the above ideas, let's take a look at the approximate total construction costs for each tsubo unit price.
In general, the price range of 300,000 to 500,000 yen per tsubo is called low-cost housing, and it is characterized by being able to keep the budget down by eliminating waste as much as possible and making it simple.
A house with a unit price of 400,000 to 600,000 yen per tsubo of the main construction cost can be said to be at an average price level, and it is possible to realize the desired floor plan and installation of equipment to some extent.
And when the unit price per tsubo exceeds 800,000 yen, it becomes possible to build high-performance, high-quality housing, and it is a price range that can be requested from a house builder with a wide range of after-sales services.
For a house of 35 tsubo to 45 tsubo, the total construction cost is calculated as follows with the unit price of each main construction cost per tsubo.
¥400,000 per tsubo | 600,000 yen per tsubo | 800,000 yen per tsubo | |
|---|---|---|---|
Main body construction cost | 14-18 million yen | 21-27 million yen | 28-36 million yen |
Ancillary construction costs, miscellaneous expenses | 4.67 to 6 million yen | 7-9 million yen | 9.33 million to 12 million yen |
Total construction cost | 18.67 million to 24 million yen | 28-36 million yen | 37.33 million to 48 million yen |
However, the definition of unit price per tsubo differs from company to company, and there are also differences in the ratio of incidental construction costs and miscellaneous expenses.
For this reason, it is important to consider the data as a reference price only, and ask multiple companies to provide estimates and compare them.
Search for a custom-built houseConsult with an advisor for free So, it is important to decide how to live that suits you.In addition to discussing with family members, it is also an effective means to get advice from experts as needed.
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In addition to how to proceed with building a house and points to be aware of, you can also receive advice on things you want to be careful about with a mortgage and how to choose a construction company, so please use it as a reliable partner for building a house.
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