Can you identify this building to win a £25 drinks voucher?

This wavy effect was produced with straight lines only. But what is the building?

In the detail 25 July 2008

Email your answer to First correct answer wins. The editor’s decision is final. No cash alternatives will be offered. No employees of CMP Information or their relations enter.

The building on 18 July was the civic offices at Chester-le-Street, designed by Faulkner Brown Hendy Watkinson Stonor in 1982. The winner was Bruce Turnbull of … Faulkner Browns

In the detail 18 July 2008