Question to the Home Office:

To ask Her Majesty’s Government what was the average length of time taken to determine an initial further leave to remain application made on the basis of (1) family, and (2) private, life in (a) 2015, and (b) 2016.

Data on UK Visas and Immigration temporary and permanent migration activities including In-Country Work In Progress Casework, and Percentage of Temporary and Permanent Migration in-country visa applications for each Route, processed within Service Standards, is published on the .GOV.UK website. In this instance the data provided on worksheet InC_05 gives an overall picture across Temporary and Permanent Migration and is not determined by Route.

https://www.gov.uk/government/collections/migration-transparency-data

The relevant tables are also attached to this answer.