Additional costs due to incorrectly planned ventilation system + floor-to-ceiling windows?

Hi, we have our final planning meeting on 13.12, after that everything goes to the building authority.

I told my seller from the beginning, at the first offer, that the Rotex ventilation system, the outdoor unit, is wrongly positioned. It cannot be placed as shown on the plan because the garage is supposed to be there.
They just said, "Okay, no problem. It can be changed in the planning and placed higher up."

Now I wrote to the managing director to please change this.
The answer was only:
On your floor plan, you moved the outdoor unit of the heat pump to another location. This is not possible with the contractual Rotex heat pump. Here a Novelan LAD heat pump is needed, and the outdoor unit then has to be moved further to the right to the outside wall of the study room.
Here are the costs: Conversion to Novelan LAD + €2,138.00
Extension of outdoor unit + €1,509.00
The reason is that the outdoor and indoor units must be on the same height/line

Of course, I do not agree with that.
Do you have a solution on how to still manage this without extra costs or significant loss of space?
The pantry in the picture will be omitted, and in return, the HAR will be bigger.

Point 2:
I wanted to replace the two large floor-to-ceiling terrace windows in the kitchen with one normal window because the island is supposed to be placed against that wall.
Answer:
- Changing floor-to-ceiling kitchen windows to normal windows with masonry parapet is possible in the project planning at the same price.

Question: Normal? So two large floor-to-ceiling windows cost the same as one normal one?

Point 3:
Colored front door with small side panel, EXTRA COST €1464???? A bit excessive for just some paint, right?

Point 4:
I wanted to install a horizontal window at the top in the hallway (plan top) to bring light into the room (we do not want double casement windows). We saw this in a prefab house with the same kneewall height as ours.
Answer:
With the current planning, the window is not possible because the necessary wall height is simply missing. Otherwise, the window would have to be fixed and made with TRAV glazing. The costs would be about €1,400.00 to €1,600.00.
Your opinion?

Point 5:
Discount on removing standard front door - €1,315.00
But if I want an additional one, it costs me over €4,000. How can that be?
See the picture.
Maybe they wanted to remove it because it is not a decent door. No RC2 class, no window with privacy protection etc.

Here is the description:
Your contract includes a white plastic front door from the standard program with a small side panel.
The side panel has clear glass, satinato glazing can of course be agreed additionally.
The front door has a basic security level, which should roughly correspond to WK 1; a higher standard is also possible and can be agreed.
According to the contract, a handle about 30 cm long is agreed.

Point 6:
Are the floor-to-ceiling windows upstairs okay? Or too little light?
Better one normal window? What is actually normal? Meaning, what size?

So, that’s it for now. Actually, I only wanted to write very little and just 1-2 points.

Thanks

Here is the missing picture of the door

I can't tell you about everything, but about some things.

Regarding Rotex: Sure, you can postpone a lot. He didn’t tell you anything wrong there. He just didn’t mention that additional costs might arise. From my point of view, your only option is to negotiate with the seller if they can still make some kind of deal.

Regarding the door: The standard is always very basic. Obviously, the cheaper house price has to come from somewhere. The general contractor will charge a premium for every extra. If you have something credited back to you, the amount always looks a bit meager. But you also don't know their purchasing conditions. Maybe they really get the door that cheaply. The hefty surcharge is then in some kind of installation costs (labor, adhesive, screws, ...) and of course in the small bonus that the general contractor puts on top so that they also make a profit.

Floor-to-ceiling vs. regular windows: The reason why the windows are practically cost-neutral is that with floor-to-ceiling ones you need less brick and plaster but more glass, and with the others it’s basically the other way around. We converted 3 floor-to-ceiling windows into one regular, one very large regular, and one small regular window. We saved 91 € with that.

Windows upstairs: I would miss a small window in the hallway and also in the storage room. But that’s personal taste. In the rooms, I would say the windows are sufficient. Whether floor-to-ceiling ones really have to be there depends on the furniture. In my childhood room, the desk would have been in front of it because of the light. Working with daylight is quite pleasant.

Good morning,

I also had the experience last year of what it means to intervene in the standard of house building companies. As long as you adopt their specifications almost 1 to 1, you get a good price-performance ratio. However, if you have some special requests, the prices go up the stairs...

I think the reason is that sometimes something new or additional has to be planned, the static calculations have to be redone, etc. Furthermore, the purchasing conditions for the other front door / windows / etc. will not be the same for the house building company, which is why their profit margin is applied to a higher purchasing value.

Point 3:
Here I can even name a few comparison figures.
In our prefabricated house, a standard price included an anthracite-colored aluminum front door without side panels. We wanted 2 side panels, each 50cm wide and colored, which would have cost us an additional €2,920.

If you now put this surcharge in relation to our current door, which we bought for just under €5,500 from a door and window supplier, it is obviously exaggerated. Our current door with side panels also includes fingerprint in the door handle, a 73cm door handle, peephole, RC2, electromechanical lock, etc. in the price.

Point 4:
I cannot say anything about your price, but again, I will provide a comparison.
We also wanted additional floor-to-ceiling windows with triple glazing.
1 window door element, 0.885 x 2.26, triple glazed in white would have cost us €1,507.
1 lift-and-slide door, 3.01 x 2.26, triple glazed in white, even a whole €3,940.

If you compare your surcharges with mine, they are roughly balanced. However, the question still remains whether the prices are really reasonable.

Regards
Michael

Regarding household appliances "weiße Ware," they are mass-produced goods and usually cheaper than colored or slightly styled ones.

I can say the same... it doesn't get cheaper... and if the construction is already calculated tightly from the start, then special wishes will become even more expensive.

And especially with doors/windows, any change will not be cheaper.

Relocating the heating and at the same time changing the system... 2-3 thousand are absolutely usual.

It's like with a car...

if you buy the base model, you pay amount X
if you want extras, you sometimes pay amount X*2

You could at most negotiate with your construction partner and try to get better prices...