Building a prefabricated house with a granny flat with a living area of 159 to 215 m²
Plan your prefabricated house with a granny flat, i.e. with a second living unit, and benefit from many advantages! With its many possible uses – whether as living space for grandparents, for your own children, for working or for renting out – a granny flat creates a lot of flexibility in your new home and can also make a valuable contribution to the house financing. At Hanse Haus, we show you the possibilities for integrating a granny annexe into the house planning with different house designs.
Discover our designs for prefabricated houses with granny flat
Configure your prefabricated house with granny flat or simply an alternative type of house
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Your advantages with a prefabricated house with granny flat
Advantages
A small, additional living unit in your prefabricated house that has big plus points: Benefit from financial advantages and remain flexible by using the available living space in a way that suits your life at the moment.
Additional living space …
- … for your parents, grandparents or adult children.
- … to benefit from the rental.
- … to create a barrier-free flat in your own home.
- … to accommodate a carer close to you.
- … to combine living and working under one roof.
- … to take advantage of the KFN subsidy per residential unit.
Be inspired by house floor plans with granny flat
It's not so easy to find the perfect floor plan for your own house with a granny flat. As inspiration for you, our architects have designed a variety of concepts, which we have summarised here.
Discover house floor plans with granny flat
Your flexibly designed prefabricated house with granny flat
Our suggestions for prefabricated houses with granny flats do not yet fit your wishes properly? Would you like a solution individually tailored to your property?
No problem at Hanse Haus. You won't get an off-the-peg prefabricated house from us: Our experienced architects will plan your dream house with granny flat based on our proposals, entirely according to your ideas.
Integrate the granny flat into your prefabricated house
An example of a prefabricated house with a granny flat in the house is Variant 25-166 - with two planning proposals.
In our variant 1, the residents of the granny flat in the basement share a common entrance with the residents of the main flat on the ground floor and attic.
In variant 2, on the other hand, the granny flat is separated from the main flat by a separate entrance. The option of planning the terraces on different sides of the house also entails a clear separation of the two units.
A good variant for more privacy
A granny flat directly in your house is not quite your cup of tea?
A granny flat does not mean that it has to be integrated into the house: it can also be planned as a single-storey extension. In our Variant 25-150 house design with granny flat, we simply added the additional flat to the house as a cube – compact, at ground level and barrier-free.
Our builder lives with his spouse in the 138 m² main flat and has rented out the 73 m² granny flat to friends.
„I particularly like the fact that both living units are located right next to each other and that you can visit each other through the shared utility room without having to step outside.“
Building a prefabricated house with a granny flat – is it worth it?
Are you thinking about adding a granny flat to your new home? In the video, we summarise everything you need to know about this topic. We present ways to use the additional living space and you will learn more about the financial advantages of building a house with a granny flat.
Important information about our prefabricated houses with granny flat
If a granny flat is added to a single-family house, this increases the construction costs. The specific additional costs for the owners depend, among other things, on how the granny flat is equipped and how it is to be integrated into the prefabricated house.
However, since savings on the purchase of land, rental income, joint financing of the house by both parties or possible subsidies and tax benefits can partially offset the higher investment, the costs for a prefabricated house with a granny flat are very individual depending on the building project.
The additional living space can be used in many ways. You can rent out the flat and benefit from the income. But there are also practical options for private use. For example, if the children get older and retreat options become more important, a prefabricated house with a granny flat offers an optimal solution. And even if parents or grandparents want to move into the house, they are sure to feel completely at home in a barrier-free granny flat - many people have a strong desire to live close to their family in old age, but still within their own four walls.
And with an appropriately planned granny flat, you too are well equipped for the future: You can flexibly move in yourself to live barrier-free on one level or accommodate a carer close by.
If you want to combine living and working under one roof, the additional available space is ideal for setting up a practice, studio or office.
A granny flat makes a valuable contribution to house financing because it offers financial and tax advantages. If you rent out your flat, then of course you also benefit from the rental income - surely no one objects to a monthly amount of X. The rental income is taxable, but in return you can deduct costs for financing, maintaining or modernising the flat. Even the production costs for the rented part of your house can be written off against tax.
Whether higher costs are incurred for the construction of a single-family house with granny flat or a two-family house cannot be said in general terms, as too many factors distinguish the individual construction projects.
The boundaries between these two types of house are also fluid, so that they cannot always be clearly distinguished from each other: While in a single-family house with a granny flat the second living unit is planned to be more compact than the main flat, the living units in a two-family house can be both the same size and different sizes.