ᐅ Expanding a Two-Family House into a Three-Family Home – Looking for Ideas
Created on: 12 May 2022 10:10
B
Baubiene321
Hello everyone,
we are facing the following “problem”:
We have an old house (foundation 9 x 10 meters (30 x 33 feet)). On the ground floor lives my mother (65 years old), on the first floor my grandmother (almost 90 years). The attic is currently used as an office. There is one main entrance with a shared staircase. The house has an unfinished basement. It was built in 1951.
We are a family of four and are looking for ideas on how to renovate/extend the house so that we can all live in it together. So far, we don’t have any perfect solution or clear ideas. For the roof, we would prefer a single-pitched roof. Maybe an extension in the form of a cube or a terraced house on three levels with (roof) terraces, or an additional floor (although we prefer not to increase the height of the house too much). We would rather extend the house in length and width than in height.
For our apartment, we imagine a large kitchen-living area, an open living room, a small guest bathroom (not mandatory), two children’s bedrooms, a bathroom with shower and bathtub, a bedroom, and possibly a storage room. Lots of glazing/window fronts. Ideally, our apartment would have its own separate entrance.
The great-grandmother’s apartment could be rented out at some point.
We would like to renovate and rebuild the house as energy-efficiently as possible (passive house standard, if possible). The plot is about 800 square meters (8,600 square feet).
Has anyone done a similar project or have ideas for the planning?
We appreciate every tip or suggestion!
Thank you 🙂
we are facing the following “problem”:
We have an old house (foundation 9 x 10 meters (30 x 33 feet)). On the ground floor lives my mother (65 years old), on the first floor my grandmother (almost 90 years). The attic is currently used as an office. There is one main entrance with a shared staircase. The house has an unfinished basement. It was built in 1951.
We are a family of four and are looking for ideas on how to renovate/extend the house so that we can all live in it together. So far, we don’t have any perfect solution or clear ideas. For the roof, we would prefer a single-pitched roof. Maybe an extension in the form of a cube or a terraced house on three levels with (roof) terraces, or an additional floor (although we prefer not to increase the height of the house too much). We would rather extend the house in length and width than in height.
For our apartment, we imagine a large kitchen-living area, an open living room, a small guest bathroom (not mandatory), two children’s bedrooms, a bathroom with shower and bathtub, a bedroom, and possibly a storage room. Lots of glazing/window fronts. Ideally, our apartment would have its own separate entrance.
The great-grandmother’s apartment could be rented out at some point.
We would like to renovate and rebuild the house as energy-efficiently as possible (passive house standard, if possible). The plot is about 800 square meters (8,600 square feet).
Has anyone done a similar project or have ideas for the planning?
We appreciate every tip or suggestion!
Thank you 🙂
For a building constructed in 1951 — yes.
The post-war period required and resulted in the most improvisations with building materials and methods. Even when renovating to a standard level, there can be surprising issues that really catch you off guard.
If in doubt, you should go through the structure with a qualified energy consultant or, better yet, a certified expert to assess how challenging a renovation to meet the Building Energy Act (KFW 70) or at most KFW 55 standard would be.
The post-war period required and resulted in the most improvisations with building materials and methods. Even when renovating to a standard level, there can be surprising issues that really catch you off guard.
If in doubt, you should go through the structure with a qualified energy consultant or, better yet, a certified expert to assess how challenging a renovation to meet the Building Energy Act (KFW 70) or at most KFW 55 standard would be.
B
Benutzer20012 May 2022 14:19Baubiene321 schrieb:
Would you generally prefer new construction over renovating to a passive house standard?Definitely for such an old building. You have to strip the house down completely – which means relocating the current occupants during that time – and essentially rebuild it from the inside out. In the end, though, you’re left with a house that still has 1950s design constraints: ceiling heights, floor plans, and so on.I know what I’m talking about because I’m upgrading an older building to KfW 55 standard.
At least you are participating much more in your own discussion this time compared to the two threads on the same topic from four years ago and one year ago, but since then nothing seems to have progressed.
apparently nothing yet; which could well be related to the fact that so far you have not shown the house or the plot you are referring to here, there, or even in
https://www.hausbau-forum.de/threads/neubau-energetisches-efh-mit-einliegerwohnung.37931/
at least once. This won't work :-(
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Baubiene321 schrieb:
My parents own a nearly 900 sqm (9687 sq ft) plot near Regensburg, where there is currently a house from the 1950s (only a wood stove, no heating system, typical for that time). My parents live on the ground floor, and my grandmother lives on the first floor (the attic is partially converted, but without plumbing). Together with an architect, we have already developed plans for a complete attic conversion,
apparently nothing yet; which could well be related to the fact that so far you have not shown the house or the plot you are referring to here, there, or even in
https://www.hausbau-forum.de/threads/neubau-energetisches-efh-mit-einliegerwohnung.37931/
at least once. This won't work :-(
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
P
Pinkiponk12 May 2022 14:44Would you like to provide a site plan, photos, etc. to accompany your question? I think something great could be designed if more details are known. Many members here often have brilliant ideas.
Perhaps a compromise would be to leave the existing house as it is and design your extension separately to Passive House standards, or only create a connection to the other house in the attic, if at all. Something like a semi-detached house.
Perhaps a compromise would be to leave the existing house as it is and design your extension separately to Passive House standards, or only create a connection to the other house in the attic, if at all. Something like a semi-detached house.
Baubiene321 schrieb:
Would you generally prefer building a new house rather than renovating to a passive house standard?For the year it was built, yes... I live in a house from 1930, and I would never tear it down. We have high ceilings, wide doors (>110cm (43 inches)), large window areas, thick solid walls, etc.
All of this was understandably not built with the highest priority after the war.
B
Baubiene32112 May 2022 18:57An alternative would be to build a new house with a granny flat (for grandma) in the garden and demolish the old building once great-grandma is no longer around. However, this would mean the current building plot could no longer be used, and many trees would have to be removed…