Energy Saving Ordinance 2009 even without solar?

We have a question regarding the Energy Saving Ordinance 2009 and solar. According to 2 of the potential developers, the current Energy Saving Ordinance 2009 can also be met without solar, provided that the primary energy consumption is 15% below the requirements of the Energy Saving Ordinance 2009. This was also offered to us! What is your opinion on this? Is this just a measure for the developer to save costs or is it really meaningful.

Thank you for your opinions

Klüsic

Hello,
You can also manage without solar (solar thermal system), especially since it does not always prove to be economical.
If you want to save or substitute energy costs later, this always means investment.
Basically: The best energy is the one that is not needed or consumed! That means low transmission and ventilation heat losses!
By the way, you have a significant need for advice, as your project is 99% a general contractor (GC) measure and not the purchase of a building turnkey (BT)!
Make sure to find external construction supervision in good time before signing the contract regarding the building and especially the building services engineering, as there are considerable risks here due to the current cost and competitive pressure.

Best regards

Hello,
I still have a few questions about your post
- "By the way, you have a significant need for advice, since your project is 99% a general contractor (GU/GÜ) measure and not a purchase from a developer (BT)!"
We went to a general contractor because we want to have a house built by one. What is the difference to a developer and why is there a need for advice? That is not quite clear to me yet. Thank you!

- "Find an external construction supervision in good time before signing the contract regarding the building as well as especially the building services, as there are significant risks here due to the current cost and competitive pressure."
Can you recommend anything here and what does one have to invest for such an external construction supervision? I am thinking of Dekra. Maybe I should also ask around in my acquaintances for references. Maybe someone knows a good one.

Thank you and regards

Kluesic

Hello,

.., as we want to have a house built by one.

As I suspected, this is a construction project with a general contractor (GU) or general services contractor (GÜ). A property developer (BT) sells the completed property together with the land. These are completely different framework and boundary conditions.

...
Can you recommend something and what must one invest for such external construction supervision? I am thinking of Dekra.

Whether it absolutely has to be such an organization, I don't think so. I remember a scandal where such a "monitoring association" granted a guarantee to a GU. The clients relied on this certificate and still ended up badly, because there were some "financial entanglements" involved. Additionally, in my opinion, these associations tend to be quite "top-heavy" and sluggish. Important and the top priority is independence and also qualification. The majority of architects, for example, are absolutely overburdened in the field of building services engineering. Particularly good is a dual qualification (Dipl.-Ing.: construction and building services engineering)!!!!
The costs naturally depend on the agreed scope, so no flat-rate statement can be made. However, they are far more moderate than is often assumed. Personally, I always propose different action packages to my clients with the respective costs and scope of services.
Especially important is the area of building services (heating, hot water preparation, if applicable ventilation and solar)! Here, GU/GÜ projects often show considerable deficits, as these aspects are usually planned, dimensioned, and calculated inadequately or not at all, but rather estimated. This very often leads to inefficiently operating systems. Modern building services technology is significantly more expensive, but at the same time has become much more sensitive. If you want to use all of its technical possibilities, sufficient dimensioning is indispensable. This cannot be achieved with "estimates," "assumptions," "guesses," and "gut feeling."
Predestined for the overall task (construction supervision, monitoring, building services) are small engineering offices that specialize in this. Then the client also comes out with moderate costs!
In conclusion:
Building with a GU/GÜ can be very cost-effective and qualitatively secure if external, independent, and objective project supervision is involved.

Best regards

Building authorities no longer take care of this either!

Hello everyone, an even bigger problem has arisen for me in the area of house construction. The building authorities receive documents from developers/contractors that contain many good values. However, it is almost never checked whether everything is actually installed as specified. The building authorities say the architect or the construction manager should take care of this, but most of the time these gentlemen are unreachable or in the wrong place at the wrong time.

Example: slab insulation: Who checks if it has been installed? If yes! Is the insulation thickness correct? On most construction sites, no one even thinks about how important this is. In the meantime, you could write books.

Regards
Bauherren2010:confused:

@€uro Thank you for the information, we will look around for construction supervision. But I have another question, which is not really related to this area, but I'll ask it anyway: We have had several rounds with a general contractor and can also imagine building with the general contractor. At the last meeting, he said that in about 4 weeks the prices will be raised. However, these are not the catalog prices, but the possible discounts that can be given. These 4 weeks have now passed, and he has offered us a contract in which the old prices are fixed. However, there is a deadline of 1 month during which the price can be held. We had the contract checked by a lawyer to see if it is possible to cancel free of charge within this period, and that is fine. However, this deadline will expire soon. My question to you @€uro: Are these all just tactics to bind the builders and keep them off the market? My wife and I are currently under quite a bit of time pressure, which is actually not a good advisor when building. Looking forward to your opinion on this. Thanks Kluesic