LINED up on a bookcase in city archaeologist Mike Morris's office is his paperwork on developments in Chester.
Most projects have their own file - the Northgate Development paper trail fills an entire shelf.
For the last 16 years Mr Morris has worked to ensure modern development in the city does not harm ancient remains below ground.
But Mr Morris - who lives in a Huntington new-build - insists the city council archaeology department does not want to turn back the clock.
'We are not here to stop development and freeze Chester in time,' he said.
'We are very keen on seeing Chester change because Chester has always changed throughout all these different periods.'
He added: 'If you look at Chester now in the last five years and in the next 15 years we will see more change in Chester than we have seen at any time in its history.
'Archaeology is an important feature of the city and if managed properly and carefully we can still have a vibrant, modern city with modern architecture while retaining the archaeology we have left.'
Mr Morris and his team oversee most construction work within Chester's architecturally important areas - from water main repairs to the huge development of the former Police HQ and the Northgate Development.
He said: 'We stop people from building something like a basement car park where it will destroy an area of archaeology.
'Where people want to build on top of archaeological remains in Chester they have to compile a report on how it will affect the archaeology beneath.
'Usually we get them to use pile foundations instead of the common trench foundations. This means the building sits on a concrete slab half a metre thick, which in turn sits on concrete piles that go down into the bed rock.
'It is much less intrusive than trench foundations-this is how in the Northgate Development we will be disturbing only one or two percent of the archaeology below.'
The department's offices behind the Grosvenor Museum are filled with trays of pottery, bones and other artefacts that were taken from digs in the last 30 years.
Mr Morris says present-day archaeologists are still trying to play catch-up in publishing details from digs, many of which took place before the glut of major construction work in the 1960s.
He said those digs are the only link to archaeology that was lost to developments like the Grosvenor Shopping Precinct and the Forum Shopping Centre.
He added: 'We are seeing the benefit of that now as we will be using information from a dig before the former police headquarters was built to help us excavate the site after it has been demolished this year.
'This is why it is so important to preserve remains under new developments - the police headquarters was constructed within the working life of some archaeologists in Chester and it is already being demolished.
'As long as the remains are still there beneath it is still possible to access them at some point in the future.'