In the first half of 2012 gross lending reached £7.26m with assets reaching £75.68m which represented new lending to sustainable properties and projects.
Net profit also exceeded expectations at £194,000.
Paul Ellis, Ecology’s chief executive, said: “Our continued success shows that sustainability and profitability aren’t opposed to each other – what’s good for the planet is good for business.”
The green lender also reported high demand for ethical savings with a 3.12% increase in balances to £99.14m.
Growth in savings balances reflected a surge of interest in ethical alternatives to the big banks with a 33% year-on-year increase in account openings for the first six months.
Ellis added: “We’re focused on long-term impact not short term gain. Growth means we can support more people to live sustainably and invest their money in line with their principles.”
All savings and mortgage interest rates have held steady since January 2010, reflecting Ecology’s simple and transparent approach.