California Code, Health and Safety Code - HSC § 33492.74

(1) Buildings in which it is unsafe or unhealthy for persons to live or work. These conditions can be caused by serious building code violations, dilapidation and deterioration, defective design or physical construction, faulty or inadequate infrastructure, or other similar factors.

(2) Factors that prevent or substantially hinder the economically viable reuse or capacity of buildings or areas. This condition can be caused by a substandard design; buildings that are too large or too small given present standards and market conditions; and age, obsolescence, deterioration, dilapidation, or other physical conditions that could prevent the highest and best uses of the property. This condition can also be caused by buildings that will have to be demolished or buildings or areas that have a lack of parking.

(3) Adjacent or nearby uses that are incompatible with each other and that prevent the economic development of those parcels or other portions of the project area.

(4) Buildings on land that, when subdivided or when infrastructure is installed, will not comply with normal subdivision, zoning, or planning regulations.

(1) Land that contains materials, including, but not necessarily limited to, materials for airport runways that will have to be removed to allow development.

(2) Properties that contain hazardous wastes that may benefit from the use of agency authority as specified in Article 12.5 (commencing with Section 33459) of Chapter 4 in order to be developed by either the private or public sector or in order to comply with applicable federal or state standards. Notwithstanding any other provision of law, all redevelopment agencies with authority under this act are specifically prohibited from accepting responsibility for, or using agency authority on behalf of, hazardous waste sites that are the responsibility of the federal government.