House construction in Kassel (Northern Hesse)

Can you please comment on this in more detail?

Gladly, how naive or gullible can one be to personally and permanently comply with such a request? In principle, a PH can also be realized without "certification," provided it actually makes sense. Entire "tribes" profit from this "certification" at the expense of the private builder’s wallet. If "certification" is made mandatory here, it is certainly not hard to imagine how this came about.

Regards.

The certificate, if I remember correctly, costs about 3,000 EUR and is subsidized / paid for by the municipality. Therefore, that doesn’t bother me further.

In my opinion, the additional costs for a passive house compared to a standard house according to the Energy Saving Ordinance 2009 also make sense. By foregoing a conventional heating system, a large part of the additional costs for the highly efficient ventilation, better windows, and thermal insulation can be financed. Moreover, the operating costs of a passive house are extremely low. Additionally, the Kfw Bank promotes the construction of a passive house with a repayment grant of 10% of 50,000 EUR => 5,000 EUR per housing unit.

Furthermore, it must be said that looking only at the construction costs alone is inadmissible because the importance of energy costs will increase in the near future. Therefore, only a comparison on a full cost basis is truly serious.

For me personally, the impact of the future price increase rate for energy is significantly more important than the question of additional construction costs.

... In addition, the operating costs of a passive house are extremely low.

Theoretically

... Additionally, the KfW bank promotes the construction of a passive house with a repayment grant of 10% of 50 TEUR => 5 TEUR per residential unit.

Anyone who considers alleged gifts for themselves personally as economically viable overall should obtain a legally binding document for this

... Furthermore, it must be said that looking only at the construction costs is inadmissible, as the importance of energy costs will increase in the near future. Therefore, only a full cost comparison is really serious.

Absolutely correct!

... For me personally, the impact of the future rate of energy price increases is much more significant than the question of additional construction costs.

There is nothing to oppose, just the question of how reliable that is? What is the actual demand for heating, DHW, ventilation? What is the consumption and what are the necessary investments or capital service for this?
Anyone who can do basic calculations will quickly realize that alleged subsidy gifts are merely a Band-Aid compared to the actual financial burden, provided the actual demand is determined

Best regards

Hello,

€uro is 1000% right in his field – his unvarnished statements are sometimes hard to digest; in this case, however, he is (again) right!

The certificate, if I remember correctly, costs about 3 TEUR and is subsidized / paid for by the municipality. Therefore, I am not bothered by that.

This "subsidy" is strictly speaking a smokescreen (like any subsidies), because you pay this subsidy proportionally from your total income through your tax money. So this certification – even if initiated with the best intentions through Prof. W. Feist’s institute – is primarily a marketing argument. Both for the municipality as a sales argument and also for the current federal government as a sign of the "energy transition."

In my opinion, the additional costs for a passive house compared to a standard house according to the Energy Saving Ordinance 2009 also make sense.

That always depends on the personal decision and the credit side of the bank account.

By foregoing a conventional heating system, much of the additional cost for the highly efficient ventilation, the better windows, and the thermal insulation can be financed.

In my opinion, you should quickly discard this idea. A currently common heating system is the gas condensing boiler plus solar on the roof for domestic hot water. For a house you plan, about €8,800.00 in costs.

A "highly efficient" ventilation system for a PH costs around TEUR 16; the "better" windows – 0.66 W/(m²K) down to 0.51 W/(m²K) – cost 100% or more compared to "normal" windows. You want massive construction, meaning the wall construction must be at least 42.5 cm thick – additional costs compared to 36.5 cm are between TEUR 9 and 14 depending on the provider. The "stronger" thermal insulation costs another good TEUR 8 – 12 depending on choice and provider; photovoltaics goes without saying => the goal is: less than 15 kWh/(m²a) and a primary energy demand including hot water and household electricity below 120 kWh/(m²a). In general, a "real," certified PH requires about 80% more costs – measured against the "normal" house price according to the Energy Saving Ordinance 2009.

For me personally, the influence of future price increase rates for energy is far more important than the question of additional construction costs.

This is often communicated "outwardly" like that; but it is not true, as it is purely a marketing argument. You must never neglect the capital service! A PH will not pay off during your lifetime...

If you build a house today according to the valid Energy Saving Ordinance – Kfw 70 should be aimed for in my opinion – and bring a TGA planner on board from the start, the operating costs of the new building will be economically justifiable later, and you will not be chasing a lost investment. Just my two Coins

Kind regards

I rather suspect that the last number alone is intended for 150 sqm of living space.

Best regards

I have to agree with Bauexperte. You have to calculate €1800 per sqm for a completely finished penthouse without own contribution. If it is slightly less, the money will go towards the garage or kitchen. So it's better to calculate pessimistically.

Hello,

You had to calculate 1800 € per sqm for a fully finished penthouse without own contribution ...

I assumed a minimum of EUR 2,000/sqm; a real penthouse requires a higher capital investment than a low-energy house

Kind regards