Semi-detached house: what it is and what are the advantages and disadvantages

Even if you don’t know what a terraced house is, like many other people, you have probably seen some along the way. This is because semi-detached house designs in the Blue world city are quite popular, since it is an economical project.

Today, we will talk about the semi-detached house, explain how it works, what are the characteristics of the project, its advantages and disadvantages.

What is a semi-detached house?

Some people confuse the term “twinned” with “sprouted”. But, knowing the difference between the two terms, you will see that “germinated” has nothing to do with “twinned”. The word “germinated” comes from the verb germinate and means to sprout, to grow, to develop. In contrast, “twinned” has to do with the idea of ​​twins, and refers to something that is duplicated, side by side and is identical to another.

In this way, we are able to better understand what a semi-detached house represents. The semi-detached house, which can also be called conjugate, is the construction of two or more houses connected to each other. Such constructions proportionally divide the same lot, in a division that occurs according to the number of constructions.

The semi-detached house receives this nomenclature due to its structure, in which we perceive that two or more buildings are symmetrical and share the structure, masonry, roof and wall. In addition, they can have the same model of divisions inside – an internal arrangement inverted to each other – although this is not a rule.

In general, these buildings are inside and form the same condominium. One of the biggest advantages of the semi-detached house is precisely the fact that it is a property that manages to be much more affordable, both in terms of construction and sale. This is because the properties are built in series, allowing the builder to spend a much lower value on the property than he would spend on other types.


The plans of semi-detached houses vary in several ways. It can be a floor plan for a townhouse, a modern, single storey, simple, sophisticated, larger or smaller, etc.

In order to prepare the plans of semi-detached houses, it is necessary to think about the lifestyle of the residents, because, as he defines his needs, he will also define the style and characteristics of the houses. In addition, the plans of the semi-detached houses also need to take into account the size and type of land on which the houses will be built.

Remembering that the plans of semi-detached houses must be developed by engineers and architects. In this case, it is interesting if there is a possibility for the future resident to follow the project, as it will be possible to try to solve or mitigate some disadvantages that this model of house presents.

And, speaking of disadvantages, now that you already know and know well what a semi-detached house is, it’s time to know what advantages and disadvantages this model has.

Advantages and disadvantages of the semi-detached house

When it comes to a semi-detached house, generally, the first advantage and the first disadvantage that come to people’s minds is: cheaper price and less privacy. But, in addition to these two points, there are many others that must be analyzed and taken into account by those who wish to acquire this type of construction.

Currently, the semi-detached house has conquered its space in the real estate market, mainly in condominiums. Large landowners have taken the opportunity to build semi-detached houses and, thus, reduce and optimize the design and construction costs.

Therefore, who is looking for a property to buy, semi-detached houses can be a good choice, since, in general, they have a more affordable price.

However, anyone thinking of buying a semi-detached house should remember that some of its features can be challenging, such as the fact that a semi-detached house shares its space with another.

But do not worry. In this text you will get to know the main advantages and disadvantages of a semi-detached house, to know what should be considered before deciding to make the purchase.

Advantages of the semi-detached house

Most affordable price

Let’s start with what is considered by many to be the main advantage of the semi-detached house: the lower price compared to other buildings. It is common for a semi-detached house to come out at a cheaper price without meaning that its quality or location is impaired. It is possible, for example, to find a property that meets the characteristics you are looking for as a semi-detached house.

The price of a semi-detached house is lower because it shares the same lot with one or more houses. This sharing of space and the duplication of the same project is what generates savings for the builder and, as a consequence, for the final buyer.

Construction economics

Another advantage of the semi-detached house, which is related to the first, is about the value of the construction. As the semi-detached houses share the same electrical network, water and sewage pipes, etc., the construction costs of the houses are reduced.


As stated above, the fact that the semi-detached houses share the same structure, such as the roof and the wall, makes it possible to build more than one house on the same site. This way, you can make better use of the terrain space.


Since the semi-detached houses have the same structure, the maintenance will also be the same. This will cause the costs of possible maintenance to be divided equally between the residents of the houses.

Support between neighbors

Coexistence with the residents of the house next door ends up being inevitable. Although this represents some disadvantages, which will be seen later, this coexistence can end up being positive in certain aspects. One is the possibility of developing friendship between neighbors, in addition to a support network. For example: if the residents of one house are traveling, the residents of the other house can keep an eye on the residence next door. They can even help care for pets – if any. In addition, always having someone around is a good and important safety measure.

Disadvantages of the semi-detached house

Solar lighting

Since the walls of the semi-detached house are stuck together, it may be that – in fact, it is quite common – that one of the houses ends up not getting sun and, consequently, it gets colder. In addition, the lack of sun in a certain part of the house can end up subjecting it to problems with infiltrations.


Just as the problem of lighting can occur, so does the issue of ventilation in the semi-detached house. There is a possibility that one of the houses ends up having less air circulation than the other, thanks to the fact that one side of the house does not have space for bars on the windows.


Unless the project for the semi-detached house has pretensions of acoustic insulation, something that is usually very difficult, the wall that divides the houses side by side ends up “escaping” a lot of noise from the neighboring house.

Common areas

Even though each house has its own individual entrance, there are some common areas that are generally shared, such as a garden, laundry area and leisure areas.

In this case, it is necessary to create some rules of coexistence to avoid conflicts between neighbors. The rules will serve as a kind of constitution that will need to be followed. Thus, the common areas will have their use regulated that will serve for a peaceful coexistence.


Privacy is one of the main issues to be considered when someone chooses to buy a semi-detached house. Precisely because of sharing structures, such as some walls, it is natural that the acoustics do not collaborate, as stated above. In many cases, it will be possible to hear what is going on in the house next door. If a neighbor decides to have a party, for example, the noise can be even more annoying. Also, remember the difficulties in sharing common areas.


As stated in the advantages section, the maintenance of the sprouted house will cost less, since it will be shared. However, the fact that parts of the germinated house’s infrastructure will be shared can create some inconvenience. In the event of a problem, the issue needs to be resolved among the neighbors.

Maintenance in semi-detached houses requires even more care. Imagine, for example, that it is necessary to make a work on a wall that has infiltration. If that wall is shared, the work will not only be on your wall, it will also be that of the neighbor. To avoid any wear and tear, it is important to establish from the beginning how the work will be and whether the costs will be divided or not.

This, in addition to preventing any type of maintenance from causing problems in the house next door or between residents, will also prevent problems in the case of renovations. If a resident decides to carry out any type of change – on the facade, for example – this must be in agreement between the neighbors.

Care with regularization

If you were convinced by the advantages and the attractive price and decided to buy a semi-detached house, do not forget to take care of the regularization of the property. At the time of regularizing the real estate registry, it will be necessary to register as a “mini” condominium, allowing the coexistence of two or more houses, or to divide the lot and transform it into more than one registration.

This issue is extremely important to avoid possible problems. It is necessary to clearly define which part is a common area and which part is a private area. Only with this separation will it be possible to define which part belongs to whom. Each buyer needs to have a property that is his alone, to settle and answer for the property, even if he decides to rent, sell or mortgage.