ᐅ 100-110 m² Bungalow: How much living space is possible in the attic? What are the costs?

Created on: 1 Jul 2016 16:02
E
Enterich
Hello everyone

We are considering building for a second time if we secure a plot of land.

Even though we are both only 30 years old, we really like the idea of a bungalow designed as much as possible to be age-appropriate right from the start (1-meter (3.3 ft) doors, walk-in shower, etc.).

Now the idea came up to build a bungalow of about 100-110 m² (1,076-1,184 sq ft) and then, during the year after moving in, to finish the entire upper floor ourselves and create partition walls using a lightweight construction system.

So, first of all, a general question: How much living space can you typically expect in such an attic floor (“standard” building regulations, maximum ridge height of 9.5 m (31 ft)) on top of a 100-110 m² (1,076-1,184 sq ft) ground floor?

What do you think would be the price difference for a roof, compared to the lightweight construction option? The plan is to install screed including underfloor heating on the upper floor right from the start.
Can someone roughly estimate the cost of a solidly built bungalow with brick cladding, a maximum roof pitch, and screed on the upper floor, including all additional costs?
According to my calculations, it would be around €170,000, excluding the kitchen, garden, and land/fees/transfer tax. The plot will cost about €80,000 including notary fees and transfer tax. Another €30,000 is planned for kitchen and garden.

Thank you very much for any advice!
E
Enterich
2 Jul 2016 10:54
Then, of course, a "standard" single-family house with a pitched roof. Somehow, I assumed that with a bungalow having 100m² (1076 sq ft) on the ground floor and about 70m² (753 sq ft) in the attic as a "future expansion area," it would be cheaper—especially if you do the finishing yourself—than a classic pitched-roof single-family house with 170m² (1830 sq ft). Theoretically, it’s almost the same, except for the height of the masonry wall, I think?

If it turns out to be cheaper, it will definitely be a "standard" single-family house with 140m² (1507 sq ft). Maybe you could get an extra room on the ground floor that could be used as a bedroom later in life. A steep roof pitch and a space-saving staircase in the bedroom would probably make the extra room unnecessary anyway.
E
Enterich
2 Jul 2016 11:11
Unfortunately, I can no longer edit the post.

Do you think the budget might be sufficient? 280,000€ (of which approximately 80,000–95,000€ will be spent on the plot including additional costs). We actually planned to have a bit of a buffer at the end rather than underestimate.

- Single-family house, 140m² (1507 sq ft)
- Fully brick-clad, engobed or glazed roof tiles
- Underfloor heating on ground floor and upper floor
- Steep roof pitch (maximum building height 9.50m (31 ft))
- Distance from street to utility connections maximum 8 meters (26 ft)
- Standard good-quality fittings (branded heating system, sanitary fixtures, more economical Grohe standard etc.)
- No hot water system, ventilation system, and so on

- We would carry out tiling, electrical work, painting, landscaping including paths/driveway, and attic conversion ourselves if the builder offers a fair discount.

Thank you very much

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