Massive house costs KFW 70 - Prefabricated house

So I would have no problem building like that.

I was a plumber myself for years and also installed such sheets.
We never heard from a client that he had any problems with it.

ok good, then I hope I also get positive feedback from the district administrator and that they also allow building the gable like that.

regarding the price: Simply standard equipment nothing special but also not all cheap

- Heat pump with ventilation and heat recovery / underfloor heating in the granny flat, ground floor, attic
- Bathroom tiles only on the floor, shower, around the bathtub
- Granny flat self-construction, but connections must be planned
- Ground floor tiled with slate, (we will do the carpet in the attic ourselves)
- Painting and wallpapering will be done by us
- House exterior dimensions 8.5m x 11m
- 2 skylights, hallway attic and bathroom attic
- Staircase if possible made of concrete and also tiled with slate, otherwise a wooden staircase
- Extra entrance downstairs for the granny flat should be level with the street at the front.

- Self-built granny flat, but connections must be planned - Ground floor tiled with slate, (we will do the carpet in the attic ourselves) - Painting and wallpapering will be done by us

At first glance, I really like the house! A plot with a slope always has something special anyway.

Be careful with DIY work. I just had three painters spend a total of 50 hours on filling and painting fleece in the living room and hallway. If I take twice as long myself (and I tend to expect more), that's 100 hours of work. Together, we might manage 32 hours on weekends. That's at least three full weekends just for the preparatory work. Nothing is painted yet then. During that time, we can't do anything else (like housework) and are exhausted. You also pay twice as much for the material.

Let me know how satisfied you are with the slate. We initially considered it as well.

Let me hear how satisfied you are with the slate. We also flirted with it at first.

Slate was/is also being discussed with us...

Although at the moment, dark wood-look tiles are more popular...

It does look nice, but is supposed to be quite maintenance-intensive compared to "normal" tiles...

I really like the house at first glance! A sloping plot always has something special anyway.

Be careful with DIY work. I just had three painters spend a total of 50 hours on filling and painting fleece in the living room and hallway. If I need twice as long myself (and I expect even more), that's 100 hours of work. Together, we might manage 32 hours on the weekend. That's at least three full weekends just for the preparation work. Nothing has been painted yet. In that time, we don't get anything else done (household, for example) and are exhausted. You also pay double for the materials.

Let me know how satisfied you are with the slate. We also flirted with that idea at first.

Yes, that's exactly why we only want to paint and wallpaper... not fill :-)

We still have to take a close look at the slate, that was our idea.

What did you pay for your house? Will we come close with 200,000 EUR + basement...?

Hello,

Besides, I would be interested to know how high you estimate the costs for the construction? What is generally cheaper? Solid house or prefabricated house?

According to all experience, a solidly built house – important: with comparable quality – is always more cost-effective.

Basement with granny flat (self-construction) 45,000 Eur

Are you building the basement completely yourself or are you “only” doing the interior finishing of the granny flat on your own?

Additional construction costs 30,000 Eur

Yep, between TEUR 35-40; in the case of a hillside location, however, several thousand euros would probably be added.

I would be very grateful for your opinions before I always have long conversations with architects and then don’t get an offer again because some point is still open.

That only works rudimentarily, because the hillside location must be inspected on site, the property measured, and thereafter a soil report prepared. Don’t deceive yourself about the additional costs for the hillside; you have 2 sides/semi-detached house which must be calculated as above-ground exterior walls. Also important: with hillside locations, layer water must always be taken into account. And the additional earthworks – even with favorable soil conditions – are not yet included.

To give you an idea, I have attached a side view of a construction project where we are currently waiting for the building permit.

A single-family house as plaster construction including full basement
12.00 m x 9.50 m, approx. 281 sqm living area
(Basement approx. 2.50 m clear height) according to the building and
service specification VII/2011 with basement
Execution as WU partial basement on the earth-contact basement walls
due to occurring layer water on hillside location
Approx. 55 sqm exterior plaster on exposed basement exterior masonry
Submission: Floor plans and section dated 16.12.2011
Cross gable approx. 3.00 m according to plan
Roof pitch 40° gable roof, knee wall 0.50 m

INCLUDED EQUIPMENT:

• as “KfW - Efficiency House 70”

• The rooms in the basement are finished as living space with interior plaster, electrical installation and, except for rooms 1 + 2, receive underfloor heating according to the building and service specification VII/2011 with basement.

• SFA Sanicubic® 1 small lifting station for the basement kitchen, suitable for
building and service specification VII/2011 with basement

• 2nd front door to the granny flat on the ground floor according to building and service specification VII/2011 with basement.

• 2nd kitchen connection in the granny flat on the ground floor according to building and service specification VII/2011 with basement.

• 2nd meter cabinet and doorbell system for the granny flat on the ground floor according to building and service specification VII/2011 with basement.

• Electrical installation, sanitary installations and tiles for the granny flat on the ground floor according to building and service specification VII/2011 with basement.

• Floor-level shower in the bathroom of the granny flat 1.00 m x 1.30 m, with one-sided tiled privacy wall 1.00 m x 1.00 m, tile material price € 25.00

• Floor-level shower in the bathroom of the attic 1.00 m x 1.30 m, with one-sided tiled privacy wall 1.00 m x 1.00 m, tile material price € 25.00

• A 2nd wash basin, size 63 cm, including single-lever mixer tap according to building/service specification VII-2011, will be installed in the attic bathroom

• All windows basement/ground floor/attic are two-tone – white inside, anthracite outside – in color RAL 7016 and executed according to building and service specification VII/2011 with basement

• 15 windows/window doors basement/ground floor receive an electric drive (button up/down) for the roller shutters including motor according to the building and service specification VII/2011 with basement

• 2 French balconies made of stainless steel in the cross gable, instead of laminated safety glass

• The balcony according to plan with partition baskets, 2 supports and covering according to building and service specification VII/2011 with basement, receives a stainless steel railing

Putty and painting work
• The building will be completely finished and ready for painting. All rooms receive a painting fleece and are painted white (primer and main coat) according to the building and service specification VII/2011 with basement

Floor coverings
• Floor coverings with a material value of € 25.00/sqm according to building and service specification VII/2011 with basement will be installed in all rooms of the building.

• Execution of an integral system THZ 403 SOL, brand Tecalor or equivalent. Provided that the local conditions of your property meet the requirements, the following services are included in the offer:

The air/water heat pump according to heat demand calculation and energy saving regulation
Controlled ventilation system with heat recovery from exhaust air (only for the main apartment) is done via an integrated central ventilation system
Complete flat duct package for central regulation of supply and exhaust air (only for the main apartment)
The complete hot water heating center with integrated domestic water supply, ready for connection; separate hot water storage 200 l
Connection modules and accessories
Execution of an additional meter space for the heat pump
Obtaining official permits as required

• Decentralized ventilation system for the granny flat, brand Tecalor TVZ 70 or equivalent. With heat recovery from exhaust air via a cross-counterflow heat exchanger, easy exchangeable filter for filtration of supply and exhaust air.

• Outdoor facilities
Included in the fixed price are the complete outdoor facilities except possibly required support brackets (L-stones) for retaining the hillside: earthworks (without possibly necessary soil replacement or possibly fill according to soil report), access path to the house with appropriate paving approx. 2.00 m wide, terrace in front of the basement floor 12.00 m x 3.50 m with frost-proof covering at a material value of € 25.00/sqm

Including 19% VAT* at a fixed price for turnkey € 385,600.00

In the above example, our builders achieve pure living space of 76.34 sqm for the granny flat and 178.80 sqm for the main apartment according to DIN. If you are wondering about the additional ventilation system for the granny flat – with a single-family house with granny flat you cannot run the ventilation via one system! And – in the granny flat in the basement no toilet needs to be installed, otherwise instead of the small lifting station a larger one with double chopper would have had to be installed.

Kfw 70 - prefabricated house 200,000 Eur with heat pump and ventilation, what would that cost us as a solid house? House dimensions 8.5m x 11m, knee wall 1m?

That should be about 150 sqm for the main apartment and about 70 sqm living area for the granny flat; approximately 220 sqm total estimated according to DIN. Broken down from the presented example and with the same equipment, you should realistically calculate TEUR 310-330/semi-detached house.

Best regards