Zhuāngxiū shí bù néng suíbiàn dǎqiáng, chéngzhòngqiáng gèng bùnéng dòng.
You can't just knock down walls when renovating, and load-bearing walls must never be touched.
Tips
mistakes
In Chinese apartment renovation, 打墙 specifically means demolishing a non-load-bearing partition. Never touch a 承重墙 - it's both illegal and structurally dangerous, and property management will stop the work.