http://www.ukba.homeoffice.gov.uk/polic ... les/part5/
Requirements for indefinite leave to remain as a highly skilled migrant
135G. The requirements for indefinite leave to remain for a person who has been granted leave as a highly skilled migrant are that the applicant:
(i) has spent a continuous period of 5 years lawfully in the United Kingdom, of which the most recent period must have been spent with leave as a highly skilled migrant (in accordance with paragraphs 135A to 135F of these Rules), and the remainder must be made up of leave as a highly skilled migrant, leave as a work permit holder (under paragraphs 128 to 133 of these Rules), or leave as an Innovator (under paragraphs 210A to 210F of these Rules); and
Indefinite leave to remain for a work permit holder
134. Indefinite leave to remain may be granted on application to a person provided:
(i) he has spent a continuous period of 5 years lawfully in the UK, of which the most recent period must have been spent with leave as a work permit holder (under paragraphs 128 to 133 of these rules), and the remainder must be any combination of leave as a work permit holder or leave as a highly skilled migrant (under paragraphs 135A to 135F of these rules) or leave as a self-employed lawyer (under the concession that appeared in Chapter 6, Section 1 Annex D of the Immigration Directorate Instructions), or leave as a writer, composer or artist (under paragraphs 232 to 237 of these rules);
http://www.ukba.homeoffice.gov.uk/polic ... es/part6a/
245E. Requirements for indefinite leave to remain
To qualify for indefinite leave to remain, a Tier 1 (General) Migrant must meet the requirements listed below. If the applicant meets these requirements, indefinite leave to remain will be granted. If the applicant does not meet these requirements, the application will be refused.
Requirements:
(a) The applicant must not fall for refusal under the general grounds for refusal, and must not be an illegal entrant.
(b) The applicant must have spent a continuous period of 5 years Lawfully in the UK, of which the most recent period must have been spent with leave as a Tier 1 (General) Migrant, in any combination of the following categories:
(i) as a Tier 1 (General) Migrant,
(ii) as a Highly Skilled Migrant,
(iii) as a Work Permit Holder,
(iv) as an Innovator,
(v) as a Self-Employed Lawyer,
(vi) as a Writer, Composer or Artist,
(vii) as a Tier 2 Migrant.
)
