Niall Collins (Limerick County, Fianna Fail) | Oireachtas source

It is page 414. Section 231(3) states:

A person may, before applying for permission in respect of a development—

(a) consisting of the provision of 4 or fewer houses, or

(b) for housing on land of 0.1 hectares or less

apply to the planning authority concerned for a certificate stating that this Chapter shall not apply to a grant of permission in respect of the development concerned (in this section referred to as a “certificate”), and where the planning authority grants a certificate, this Chapter shall not apply to a grant of permission in respect of the development concerned.