Complex sentence: Hale's experience of school design whilst training with Innocent and Brown was a big factor in winning the contract, the school opened in May 1896, it is an impressive building set above the Rivelin Valley.
Split into simpler sentences: Hale's experience with school design whilst training with Innocent and Brown was a big factor in winning the contract. The school, which opened in May 1896, is an impressive building set above the Rivelin Valley.