Sure, every building will develop defect over time. Educational, technical, or simply due to intensive use. But even then, demolition is unnecessary.

1.
 Existing schools offer more space for education than the new ones.

Especially post-war schools, roughly 1950-1990, are spacious and flexible. They have many more square meters than new construction can offer according to current standard budgets. And existing schools can easily be adapted to renovation.

2.
Existing schools are part of our history.

A school reflects the ideals of an era. We do not always realize this historical value because schools are often still in full daily use after fifty years. But a school is our most accessible heritage. Full of memories, a recognizable part of the neighbourhood or the village. Take care of that memory.

3.
Renovating or transforming existing schools is more sustainable.

Renovating an existing school emits 20 to 50% less CO₂ than comparable new construction. Demolition and new construction is not only unnecassary but also irresponsible from a climate and justice perspective.

4. 
Renovating existing schools is financially more attractive.

Renovating an existing school usually costs 10 to 30% less than comparable new construction. By giving the existing building a new life, you simply get more school for your money. You can also more easily phase it if you want. It doesn't have to be done all at once.

1.
By treating renovation and transformation as a fully-fledged design task.

Not just putting on a plaster here and there and adding bits, but designing the entire school, based on what already exists. Get the best architects we have.

2.
By looking very closely at the existing school.

Use the original design as a source of knowledge. No one has thought about it as well as the original designer. Use that insight. Dive into the archives, bring the history of the school to life because it helps shape the future. And listen to the school's users. They are the experts by experience.

3.
By involving everyone involved.

Involve everyone at the school in the renovation, because it is their school. And the neighbourhood too. And all departments at the municipality: not just the education department, but also sustainability, heritage, urban development, greenery, sports. Let them rise above their boxes and create the best school together.

4. 
By calculating precisely and completely. 

Choose a calculation method that treats all options (demolition plus new construction, preservation plus renovation) in the same way, without hidden advantages for either. And this applies not only to the financial sum, but also to the CO₂ footprint.