This annual compilation of statistical data relies on substantial help and guidance from a host of civil servants at the Department for Communities and Local Government, the Department for Work and Pensions, the Treasury, the Welsh Government, the Scottish Government, the Northern Ireland Executive, the Office for National Statistics and elsewhere. Similar assistance was provided by the Council of Mortgage Lenders, the Homes and Communities Agency, Greater London Authority and the Northern Ireland Housing Executive. Their enormous help in compiling this year's edition of the Review is most readily and warmly acknowledged.

We are particularly grateful to the collective help provided by this year's sponsors (see cover), without whom the 25th anniversary edition (and future editions) would not be published, especially since the Department for Communities and Local Government is no longer able to make a financial contribution (although it keenly provides 'support in kind'). It is therefore particularly pleasing that among the sponsors are the Scottish Government, Welsh Government and the Northern Ireland Housing Executive. We are also grateful for the involvement of I-SPHERE at Heriot-Watt University in Edinburgh, and the contribution to the writing of Commentary Chapter 5 in this edition by Suzanne Fitzpatrick and Beth Watts.

Many of the statistical data presented here can be accessed in a variety of published, or publicly available, statistical series, and sources are comprehensively acknowledged against each table in the Review.

This year the authors, led by Steve Wilcox, include also John Perry, Mark Stephens and Peter Williams. The Review has again been published by the Chartered Institute of Housing with John Perry as production editor. Alan Lewis has again assisted with compiling the tables, aided on this occasion by Paul Cosgrove from Heriot-Watt University and Yoric Irving-Clarke at CIH.

For all the diverse help provided, and despite every attempt that has been made to check and double check all the figures included in the Review, and the construction put upon them, the final responsibility for any errors, omissions or misjudgements is entirely that of the authors. The views expressed in the Review are also the responsibility of the respective authors.

March 2017

Steve Wilcox CMCIH
Former Professor of Housing Policy
Centre for Housing Policy
University of York
Telephone: 01823 323891

John Perry FCIH
Chartered Institute of Housing
Westwood Way
Coventry CV4 8JP

Professor Mark Stephens FRSA, FAcSS
The Urban Institute
Heriot-Watt University
Edinburgh EH14 4AS
Telephone: 0131 451 4404

Peter Williams FCIH
Departmental Fellow
Land Economy
University of Cambridge