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

Created on: 16 May 2021 18:56
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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.
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Neubau2022
4 May 2022 20:08
TmMike_2 schrieb:

With the installation spacing and desired temperature in reference to KfW55 (20°C (68°F)), the flow temperature will hardly exceed 26°C (79°F). (We are talking here about outside temperature -14°C (7°F), so a rather cold winter)

Does this mean that the installation spacing determines the flow temperature? If the installation was done based on that, can nothing be changed in the settings afterward? I still don’t understand the relationship between the flow temperature, the underfloor heating installation, and the heat pump settings.
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Neubau2022
5 May 2022 15:10
Since there was no answer to my previous question :-) I’ll try with another one. It’s about the router. I wanted to get one after consulting with an electrician. We will initially get a connection (copper) through the telecom provider. Fiber optic might be possible later. Now the question is what would be better, or what the difference is.

I have the following devices in mind:

- AVM FRITZ!Box 4060 (Wi-Fi 6 mesh router, up to 4,800 Mbit/s (5 GHz) & 1,200 Mbit/s (2.4 GHz), 2.5 Gigabit WAN port, especially suitable for fiber optic modems, DECT base station, German language version)

or

- AVM FRITZ!Box 6690 Cable (DOCSIS 3.1 cable modem, 4x4 Wi-Fi 6 (WLAN AX) with 4,800 Mbit/s (5 GHz) + 1,200 Mbit/s (2.4 GHz), 1x 2.5 Gigabit LAN port, USB 3.0, DECT), white

The first one says it is not a modem. Can I use it at all? I don’t want to buy the wrong thing.
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Bozzi03
5 May 2022 16:20
I would choose the first one if I have fiber optic. The second one is for coaxial cable (for example, Cable BW, Vodafone, Unity Media).

Otherwise, it depends on what you need. As a single device without additional access points, I would go with the FritzBox 7590, for VDSL 😀
Mahri235 May 2022 16:50
I am using the AVM 5530 for my fiber optic connection from the municipal utility company. It was provided by them and is not very good when it comes to Wi-Fi. Now the 5590 is being released. I would prefer that one. For my DSL connection, I am using the 7590. It is perfect.
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ypg
5 May 2022 18:53
This is really frustrating. The general contractor started on time, and everything was more or less on schedule – and now this.

It would have been great to coordinate with the holiday planning. But if it doesn’t work out and the rent is actually that low, don’t stress yourself out over this. It is what it is. There are worse things. And storing the furniture for a month and moving into a holiday rental doesn’t make much sense for you.
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Neubau2022
5 May 2022 18:55
So, if I get VDSL from Telekom (175 Mbit/sec), should I use a Fritzbox 7590?

Here are a few pictures from today and the entire house with the installation of the underfloor heating.

Underfloor heating: spiral-shaped pipes on the floor, unfinished construction work.


Construction site room with underfloor heating: red pipes looped on the floor, window visible.


Unfinished room with heating pipes on the floor, laid in a spiral, light walls and glass fronts.


Hallway under construction with underfloor heating installed: red and white tubes lying on the floor.


Room under construction with underfloor heating: spiraled white pipes on insulation underlay.


Shell room with underfloor heating installed: heating pipes in spirals on underlay, window visible.


Underfloor heating pipes in red and white tubing pattern being installed in the floor of a room.


Underfloor heating: red heating pipes laid spirally on foil, construction wall visible.


Underfloor heating: spiral-shaped pipes on insulation foil in the bathroom under construction, wall connections visible.


Underfloor heating system: installed heating pipes on insulation underlay in a renovation room, window on the right.