alteration by laws

our managment company just sent us this, and i wanted to know if this is normal ( specifically the money ) All alterations to your unit must be approved by the Board of Managers prior to the start of any work. The required documentation and payments are listed below. Signed Alterations Agreement Scope of work (in writing) Architectural plans (if applicable) Certificate of insurance and licenses for all contractors and sub-contractors Signed contract between owner and contractor Processing fee of $350 made payable to x Inc. Architectural review fee of $500 (if applicable) made payable to x Condominium Security Deposit (either $500 or 5% of the cost of the alteration, whichever is greater) made payable to x condominium