ᐅ Construction of a 144 sqm bungalow in Fichtenwalde (near Potsdam)

Created on: 16 May 2021 18:56
A
Acof1978
Then I would also like to introduce our building project here and keep you updated.

First, a brief introduction about us. He (42.5 years; controller in healthcare), she (38.5 years; full-time teacher), child (8.75 years; fully dependent). Our household net income is currently about €6,400 (approximately $6,800) plus performance bonuses, 13th-month salary, overtime, etc. We own a 1,462 sqm (15,735 sq ft) plot of land in Fichtenwalde. The remaining debt on the land is €37,000 (about $39,000). According to official land value guidelines, the land is valued at €146,200 (about $156,000) (€100 / sqm). The market price is around €400,000 to €600,000 (recent sale prices). We submitted the building permit application including the land conversion at the end of December. We expect approval by mid to late July.

The construction company is KB Brandis from Jüterbog. External site supervision will be handled by Bauherrenhilfe with 13 appointments.

Now about the house. It will be a 144 sqm (1,550 sq ft) bungalow plus a 12 sqm (130 sq ft) covered terrace with the following additions:
- Ceiling height 3.00 m (9.8 ft)
- Electric roller shutters (including smart home integration)
- Double-sided laminated windows (wood-colored; RC3 security rating)
- Brine-to-water heat pump with ground collectors due to water protection area (Bosch Compress 7800i LW)
- Hydraulic balancing of the underfloor heating
- Controlled residential ventilation with heat recovery (Bosch)
- Motion detectors from a security company
- 13 kWp photovoltaic system, including battery preparation
- 10 m³ (2,650 gal) cistern for rainwater use
- Doorbell with video function
- Wallbox preparation for electric vehicle charging
- Exterior lighting

Floor plan attached.

We have not yet finalized financing (although discussions have taken place). So far, we have invested up to €30,000 (approximately $32,000) from our own savings during the planning phase. This is almost all of our equity. However, we continue to save about €2,750 (approximately $2,920) per month. The monthly mortgage payment is expected to be around €1,650 (about $1,750) plus additional costs of approximately €200-250 (about $210-265) (taking into account the photovoltaic system). This means when we move into the house, we will still have savings of at least €1,500 (about $1,590) per month.

The construction contract will be signed within the next few weeks. The prices (recently discussed with the company) correspond to the offer and commitment as of September 2020.

The price per square meter of the house (according to the latest offer and full specification) will be €2,700 (about $2,870). This includes everything, such as painting, flooring, etc. The overall costs are structured as follows:
House: €378,000 (about $402,000)
Land conversion including reclassification: €25,000 (about $26,600)
Additional building costs: €40,000 (about $42,500)
Outdoor facilities: €25,000 (about $26,600)
Total financing volume: €468,000 (about $498,000)

Grundriss eines Hauses: Wohnzimmer, Küche, Schlaf-/Kinderzimmer, Bad, Flur, Terrasse.
N
Neubau2022
31 May 2022 18:22
Hausbau 55 schrieb:

Please upload a photo of the nameplate on your fireplace.

Here is an excerpt from the offer provided by the fireplace manufacturer.

Technical instructions for installing a storage fireplace with a two-sided firebox and fireclay lining
M
motorradsilke
31 May 2022 18:26
Hausbau 55 schrieb:

Tell us about the heating output of your fireplace. Probably around 7 kW. Have fun with the second or third burn... sauna vibes.
You’ll probably just accuse me of rambling again. No, this is pure practical experience. Our previous house, also with a heat transfer coefficient (HT) of 0.2, had a water-heated fireplace with 10 kW. A quality product from Spartherm. What mattered was the distribution: 80% to the 1000-liter (264-gallon) buffer tank and only 2 kW for the room. Even so, it got warm after the second burn...
For a low-energy house, I wouldn’t install something like yours.

It really depends on what you prefer.
Our fireplace in the KfW 55 house was on every evening during winter until April. The heating was set to only 20 to 21°C (68 to 70°F), but thanks to the fireplace, we enjoyed a comfortable 25 to 26°C (77 to 79°F) in the open-plan living area in the evenings. And with pleasant radiant heat. No sauna effect at all.
N
Neubau2022
31 May 2022 18:30
motorradsilke schrieb:

It always depends on personal preference.
Our fireplace in the KfW55 house was on every evening until April during winter. The heating was set to only 20 to 21 degrees Celsius (68 to 70°F), but thanks to the fireplace we had a comfortable 25 to 26 degrees Celsius (77 to 79°F) in the open living area in the evenings. And with pleasant radiant heat. No sauna effect at all.

In his case, it was probably installed as a traditional fireplace, where the heat really “blasts” out. People might not be aware that it can be done differently and therefore assume it works like that everywhere...
M
motorradsilke
31 May 2022 18:36
Neubau2022 schrieb:

In his case, it was probably built as a traditional fireplace where the heat really "burst out." He was likely not informed that there are other options and assumes it will be the same for others...
In our home, it’s also just a regular wood stove. However, it distributes heat to the open-plan area, hallway, and one room. And you don’t have to keep loading it constantly.
H
Hausbau 55
31 May 2022 18:39
Neubau2022 schrieb:

In his case, it was probably built as a traditional fireplace, where the heat really "exploded." People were likely not aware that there is another way and assume it works the same for everyone else...
You must be referring to me? How can 2 kW of heating output "explode"? Obviously, you have little understanding of how a water-based fireplace system works. Of the 10 kW heating output, the system stored 8 kW in the 1000-liter (264-gallon) buffer tank and only released 2 kW into the room.
At least you chose Spartherm, a quality manufacturer, but a nominal output of 7 kW would definitely be too much for ME. You could have made a better choice. Of course, that would have been more expensive.
T
TmMike_2
31 May 2022 18:48
Hausbau 55 schrieb:

Tell us about the heating output of your fireplace. Probably around 7 kW. Have fun with the second or third burn cycle... Sauna greetings.
You’ll probably accuse me of just talking nonsense again. No, this is pure practical experience. Our previous house, also with a heat transfer coefficient (HT) of 0.2, had a water-heated fireplace with 10 kW. A quality product from Spartherm. The important part was the distribution: 80% to the 1000 liter (264 gallon) storage tank and only 2 kW for the room. Still, it got warm after the second burn cycle...
For a low-energy house, I wouldn’t install something like yours.

I have to ask now. What materials make up your wall and ceiling construction?
Because in my case, when I turn on the fireplace, the temperature rises by 2 degrees Celsius (3.6°F) and that’s it. Really comfortable in winter. The sand-lime brick walls and concrete ceiling absorb the energy well – or rather act as a heat buffer.