ᐅ Adding a knee wall and raising the roof on a solid single-family house from 1960
Created on: 24 Jul 2021 13:27
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SchallingerS
Schallinger24 Jul 2021 13:27(initial thanks to 11ant)
We have the opportunity to buy a single-family house from 1960 at a low price, with a living area of 106 sqm (1,141 sq ft). It has a purlin roof with a knee wall in the first floor (1F). The construction is solid/masonry.
"Issues":
- Bathroom on the 1F is too small, only has a bathtub, no shower. (This is important to us and could be added if the knee wall is removed or the house is extended upward.)
- The 1F has "only" 2 (large!) bedrooms, which could be divided into 3 smaller rooms by adding partitions. (With an extension upward, a slight increase in living space.)
- Poor or no insulation of the roof in the knee wall area (--> the 1F living spaces get very warm in summer and lose heat in winter.)
--> Therefore, the roof should be removed anyway and newly insulated and reroofed, possibly combined with a living space expansion by adding another floor.
Has anyone done something like this? Removing the roofing, dismantling the roof structure (removing the knee wall), building up the exterior walls by about 1 meter (3 ft 3 in), and constructing a new roof with proper insulation? Is this reasonable for a 60-year-old house if the overall condition is solid? What structural issues might arise due to the knee wall or the new exterior wall? What challenges could occur during the process? What are typical cost ranges? (Yes, I know it varies widely across Germany, but is it more likely around 80,000 or 150,000 euros?)
Attached is a side view (sketches not to scale but roughly approximate to illustrate my question; red = current “knee wall,” green = extended masonry wall and new roof). Thank you very much and have a nice Saturday.
We have the opportunity to buy a single-family house from 1960 at a low price, with a living area of 106 sqm (1,141 sq ft). It has a purlin roof with a knee wall in the first floor (1F). The construction is solid/masonry.
"Issues":
- Bathroom on the 1F is too small, only has a bathtub, no shower. (This is important to us and could be added if the knee wall is removed or the house is extended upward.)
- The 1F has "only" 2 (large!) bedrooms, which could be divided into 3 smaller rooms by adding partitions. (With an extension upward, a slight increase in living space.)
- Poor or no insulation of the roof in the knee wall area (--> the 1F living spaces get very warm in summer and lose heat in winter.)
--> Therefore, the roof should be removed anyway and newly insulated and reroofed, possibly combined with a living space expansion by adding another floor.
Has anyone done something like this? Removing the roofing, dismantling the roof structure (removing the knee wall), building up the exterior walls by about 1 meter (3 ft 3 in), and constructing a new roof with proper insulation? Is this reasonable for a 60-year-old house if the overall condition is solid? What structural issues might arise due to the knee wall or the new exterior wall? What challenges could occur during the process? What are typical cost ranges? (Yes, I know it varies widely across Germany, but is it more likely around 80,000 or 150,000 euros?)
Attached is a side view (sketches not to scale but roughly approximate to illustrate my question; red = current “knee wall,” green = extended masonry wall and new roof). Thank you very much and have a nice Saturday.
I hoped you would be smart enough to upload more drawings from the building file here right away. As I mentioned earlier, I fear the delays indicate that the operation is more complicated than you imagine.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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Schallinger24 Jul 2021 16:25I only have a floor plan of the first floor.
That quickly brings you to two stories. Is that still allowed according to the building plan or zoning regulations (building permit / planning permission)?
Otherwise, many things are possible. I would suggest consulting an architect who is experienced with renovations and conversions.
Otherwise, many things are possible. I would suggest consulting an architect who is experienced with renovations and conversions.
ypg schrieb:
That quickly leads you to a two-story design. I don't really see it that way here. My concerns are more about the economically "reasonable" feasibility.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
H
hanghaus200025 Jul 2021 08:27What does the roof structure look like?
What about the roof covering?
Is the ceiling above the ground floor made of concrete?
In my opinion, the exterior walls should be able to support it well if they are masonry.
What have you planned for the extension?
What does the building authority say about it?
What about the roof covering?
Is the ceiling above the ground floor made of concrete?
In my opinion, the exterior walls should be able to support it well if they are masonry.
What have you planned for the extension?
What does the building authority say about it?
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