The plan for Derry of 1603 shows the infant city and proposals for further extension. However, local developments events were to destroy this initiative and pave the way for more comprehensive changes.
A disillusioned Dowcra sold his interests in 1606 to George Paulett and departed. Paulett, now commander of the garrison and acting provost of the town, did not have Dowcraís diplomatic skills and soon quarrelled with local chieftain, Sir Cahir Oí Doherty. In April 1608, OíDoherty rebelled, captured the town and destroyed its buildings.