Complex sentence: The modern H9 Groveway grid road severs a few of its houses into Walton Hall and the V10 Brickhill Street separates the Manor Farm into Walton grid square, where it was previously a research centre for Hoechst and is now the UK headquarters of MSD Animal Health.
Split into simpler sentences: The modern H9 Groveway grid road severs a few of its houses into Walton Hall and the V10 Brickhill Street separates the Manor Farm off into the Walton grid square. The Manor Farm has been redeveloped, first into a research centre for Hoechst and subsequently as the UK headquarters of MSD Animal Health.