According to government sources, a fifth of all public buildings in England and Wales have the worst energy performance rating available.

A spokesperson for the Department for Communities and Local Government confirmed that of almost 9,000 buildings given DECs last year, 1,514 were given the lowest possible rating of a G, and that over 75% scored a D rating or lower.

The figures were compiled by the department for Communities and Local Government.

The results in full:

(Of 8,849 DEC ratings)

A 55
B 401
C 1633
D 2634
E 1799
F 813
G 1514

As of last year, all buildings over 1,000m2 which are regularly visited by the public must have a DEC on display.

Source

Building Sustainable Design