Speaking to 24dash.com, he said: "The authorities are prepared to invest in improving standards and will benefit from energy cost savings in the future.
"Large old properties that have seen little investment over the years are likely to have old heating systems, poor insulation and inefficient boilers."
Mr Blomfield urged landlords in the private sector to invest in refurbishing such properties to improve their energy-efficiency, especially once the government’s Green Deal scheme launches in 2012.
The Green Deal programme will see homeowners offered funding to carry out energy-saving improvements which they would then pay back through the savings made on energy bills.
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