ᐅ Construction Report Single-Family Home €1200 per m²

Created on: 14 Jun 2020 12:05
H
hegi___
Hello everyone,

This is the construction report following an earlier thread on floor plan design.

Planned are:
618 m² (6650 sq ft) plot of land
150 m² (1615 sq ft) living space
50 m² (540 sq ft) double garage
Air-to-water heat pump with underfloor and wall heating
Zehnder ventilation system
Exterior blinds in the living room, kitchen, and gallery. Windows anthracite on both inside and outside
Smart home wireless Homematic IP
Planned budget: €300,000 including land and ancillary costs + €30,000 reserve
Plus €12,500 net for a 9.6 kWp photovoltaic system financed separately

Only small regional companies recommended by other builders are being considered.

So far, the following trades have been contracted:

Earthworks: €20,000
Shell construction: €73,000 + €1,000 for the porch above the front door, Wienerberger Poroton T9
Roof: €19,000 + €1,500 scaffolding
Electrical work: €11,000 excluding chiseling work
Window materials: 17 Salamander triple-glazed units + Beck & Heun roller shutters + 5 Selt exterior blinds = €16,000

Quotes received for:
Plastering without decorative finish: €21,000
Bathroom ceramics Villeroy & Boch: €3,000 from Reuter Bathroom Shop
Interior doors Herholz: €2,600
Hörmann front door + garage door: €3,000
Building services materials from the internet: €10,000
Zehnder ventilation unit ComfoAir Q350 TR enthalpy heat exchanger including materials: €4,000 from Selfio
Nobilia kitchen furniture: €5,500, Bosch Series 4 kitchen appliances from Für Uns Shop with 50% discount for €3,500

Modern white villa with dark pitched roof, carport, two cars and front garden.

3D visualization of a modern white house with grey roof, garden and driveway.


Floor plan of a house with kitchen, office, hallway and WC as well as color-coded wiring.


Floor plan of a house with bedroom, child 1, child 2, dressing room, hallway, bathroom and stairs.


Architectural plan: two-story house with floor plans, sections and elevations.


Architectural plan of a house with front, rear, north and south views including measurements.


Construction cost breakdown with land, interim and building costs as well as own work.
L
Lumpi_LE
16 Jul 2020 09:51
hegi___ schrieb:

Using a program to simulate thermal bridges?! That’s exactly what they are for.
Oh, come on... Simulating the orthotropic behavior of heat transfer through Poroton is a bit more complex than just entering three blocks into a manufacturer's software. Besides, it needs to be analyzed in three dimensions because the critical points are at the corners. However, spending time on such an analysis there is pointless since it’s already known that the corner is the issue.
T
Tassimat
16 Jul 2020 10:36
What is the worst-case consequence at the corners?
B
BauIwan
16 Jul 2020 14:07
@ hegi__

Are you doing the electrical work yourself? If so, have you already planned everything completely? Could you share some of it?

Many thanks and best regards
H
hegi___
16 Jul 2020 20:01
Lumpi_LE schrieb:

Oh no… Simulating the orthotropic behavior of heat transfer through Poroton is a bit more complex than just entering three blocks into a manufacturer’s software. It also has to be considered in three dimensions, since the critical points are the corners. However, analyzing this there is a waste of time because it’s already known that the corner is a problem.

Do you have concrete data on that?
BauIwan schrieb:


@ hegi__

Are you doing the electrical work yourself? If so, have you already planned it completely? Could you share some of it?

Many thanks and best regards

I contracted the electrical work for 11k. I am only doing the chases myself (saving about 1k).
B
BauIwan
22 Jul 2020 11:18
@hegi___ Has the construction site progressed in the past few weeks? I'm really curious to see what progress you have made.

Best regards
H
hegi___
22 Jul 2020 17:02
Since the precast concrete ceiling will only be delivered at the end of the month, the construction company has slowed down their pace. As a result, not much progress has been made so far.
Today, the water and sewer connections were installed.

Construction site in a residential area: orange brick walls, construction fences, white two-story house in the background.


Shell construction made of red bricks with unfinished walls on a construction site, houses in the background.