Slowly but doubt about financing

I now have to finally add my two cents.
1. Why does every random financing calculator, financing advisor, etc. ask for the savings rate + the existing cold rent? I don’t have to write the answer.
2. Rent during the savings phase and interest during the repayment phase are in a way the same... therefore I fully agree with 77.willo here.
The liquidity/flexibility of the accumulated capital is very limited in property ownership... but you get space and hopefully few and nice neighbors...
Main statement: Even if the savings success only matches the amount of increased costs, according to the laws of percentage calculation an improvement of the equity ratio occurs – this can save a lot of money...

I would be interested to know where the knowledge comes from that:

Just as an example, including all increased costs our house would probably be about €40k more expensive today (also due to the newer Energy Saving Ordinance) than 3-4 years ago, which is about 10%.
That means one would have to save about €10,000 per year plus continue paying rent. In addition, as said, there is still the risk of rising interest rates.
If someone today cannot afford a house for €400,000, they most likely also cannot save at least €800 plus additionally pay rent.

10% price increase
a) on the house? (by the way – where do these numbers come from?)
b) on the house + land?
If b) how much of that is for the land?
Would it perhaps even have been sensible here to buy the land earlier and benefit from the increase in value (saving plus?)...

and one more thing – if interest rates rise again, prices could also fall again

I often read blanket recommendations for action here derived from personal experiences of users (e.g. where something bad once happened to the brother-in-law of the work colleague of the best friend... well, whatever... leads to rambling...)

10% price increase a) on the house? (btw - where do the numbers come from?) b) on the house + land? If b) how much of that is attributed to the land? Would it perhaps have even been sensible here to buy the land earlier and benefit from the increase in value (Savings-Plus?)...

For 3-4 years. Calculate that building materials and craft services increase by 2-3% per year. In addition, further tightening of regulations, i.e. new energy saving ordinance. Added to that is the high demand; land sellers and craftsmen are also ramping things up. Usually, their books are full and if they deal with small jobs, then at proper prices. All in all, the 10% is still set moderately.

I cannot understand why someone doubts about 2.5% price increase per year. I simply made an example calculation. Assumption one:

Total construction costs: €500,000
Equity capital: €100,000
Loan: €400,000
Term: 30 years
Interest rate: 2.3%
Installment: approx. €1,540

Assuming the person waits 5 years and saves about €1,000 per month, it looks as follows:

Total construction costs: approx. €550,000
Equity capital: €160,000
Loan: €390,000
Term: 25 years
Interest rate: 1.8% (shorter term and relatively more equity capital)
Installment: approx. €1,615

These are of course just pure assumptions, which I find quite realistic. The only thing I have deliberately over- or underestimated is the reduction of the interest rate in case 2 compared to case 1, and yet the installment is higher. In terms of the savings rate, I assumed that one spends about the same on rent + savings as otherwise would be spent on the loan installment. Of course, if I can save €2,500, it looks different. However, if I can save that much, then I can also afford the loan installment.

The difference is the amount of the loan secured by the property. Practically from hour 1, I already own more of the house than in [Variante 1].

The difference is the amount of the loan on the property. Practically from hour 1, I already own more of the house than in option 1.

Everything is relative - depending on the point of reference. Do you refer to hour 1 as the move-in/start of construction or to the age of the builder?
In relation to the builder’s age, the "more equity variant" can actually look worse.

Logically, but does that actually make a difference to the feeling of living? Are you allowed to use more rooms because of it or otherwise? For me, it doesn't emotionally matter whether I actually own 20 or 30%. However, I am about 5 years earlier in my own home, can design the garden, and have the stress behind me in younger years or when there are no children yet. That's why I also wrote that the OP can only decide that alone. However, financially waiting rarely leads to an improvement in the financial balance, or only with an extremely high savings rate. Ten years ago there was still the possibility of lowering interest rates, but this is now almost exhausted.