Legal analysis: when the house property right is exchanged during the demolition and resettlement, when the demolished person pays 2% of the assessed price of the resettlement house and the high-rise house pays 3% of the assessed price of the resettlement house, the buyer and the seller sign a house maintenance fund payment agreement, and the buyer pays 2-3% of the house purchase price to the seller.

Legal basis: Regulations on the Administration of Urban House Demolition

Article 7 To apply for a house demolition permit, the following materials shall be submitted to the house demolition management department of the people's government of the city or county where the house is located:

(a) the approval document of the construction project;

(two) the construction land planning permit;

(three) the approval document of the right to use state-owned land;

(four) the demolition plan and demolition plan;

(five) the certificate of the demolition compensation and resettlement funds issued by the financial institution that handles the deposit business.

The housing demolition management department of the people's government of the city or county shall conduct a review within 30 days from the date of receiving the application; Upon examination, if it meets the requirements, a house demolition permit will be issued.

Eighth housing demolition management departments in the issuance of housing demolition permits at the same time, should be specified in the housing demolition permit demolition, demolition scope, demolition period and other matters, in the form of housing demolition notice to be published.

The house demolition management department and the demolition person shall promptly publicize and explain to the demolition person.

Ninth people should be taken in the demolition permit to determine the scope and duration of the demolition, the implementation of housing demolition.

Need to extend the demolition period, the demolition should be before the expiration of the demolition period, apply to the housing demolition management department for an extension of the demolition; The house demolition management department shall give a reply within 10 days from the date of receiving the application for extension of demolition.

Tenth people can take their own demolition, can also entrust a qualified unit to carry out the demolition.

Housing demolition management department shall not be taken as a demolition person, nor shall it accept the entrustment of demolition.