Possible strategy to make apartments affordable again...

tbh gunshots and fireworks I'd happily live without, graffiti is nice to live with though

Maybe the city selling 200,000 flats was a mistake. Especially with massive population growth.

Same about Prague. Prices are not much lower than in Berlin with salaries 2 times lower...

I think the point is that gentrified areas are prim and proper and tagging pushes back on the gentrified aesthetic.

There's also the phenomenon of guerrilla gardening beautifying a neighbourhood, which can cause developers to take note of it as a "desireable area" and bring luxury development. Tagging has the opposite effect.

I don't know enough about Berlin to comment there, but it can be true that city can still have a high average rent, at the same time as tagging a building and the surrounding area can decrease rent by deterring rich people.

Never done one of these before but I hope this is helpful.

Image description: [The streetside corner of an apartment building is pictured with red linework graffiti of a smiling, three eyed, horned dog demon with monstrous teeth and its tongue lolling out. Next to the animal is the capitalised writing "graffiti keeps rent low fuck shit up" and a heart symbol.]

Okay, I added it to the body of the post. Thanks for the heads up.