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The London Energy Efficiency Fund (LEEF) is a £112m fund that provides competitively priced finance for energy efficiency retrofit and decentralised energy projects in existing private and public sector buildings.


LEEF is funded by the Mayor’s London Green Fund with match funding from RBS, and is the first dedicated Energy Efficiency fund of its type in the UK. The Amber Green consortium was appointed to manage LEEF by the European Investment Bank (EIB) on behalf of the Greater London Authority. 

LEEF is an Urban Development Fund established through the European Commission’s JESSICA initiative (Joint European Support for Sustainable Investment in City Areas) which allows funding from the European Regional Development Fund (ERDF) to be used as investment in revolving financial instruments. LEEF is one of the two UK JESSICA funds managed by Amber Green.

LEEF’s investment criteria is for projects that deliver energy savings of 20%, and/or which save a tonne of Carbon Dioxide for every £5000 of investment. A significant proportion of capital refurbishment works, repairs and other building improvements will include eligible energy efficiency measures which can be funded by LEEF.

LEEF predominantly provides senior debt, but will also consider mezzanine and equity opportunities. Borrowers can be public sector, private sector (e.g. Landlords or ESCOs – Energy Service Companies) or joint ventures. LEEF offers loans with a target size of £1-20m and works closely alongside the RE:FIT programme and its projects procured using guaranteed Energy Performance contract.

For queries on LEEF or to discuss potential projects, please contact enquiries@leef.co.uk. See our Urban Development page for more information and case studies on the LEEF projects

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