Anybody who has ever tried to recklessly together a flatpack cupboard without consulting the instructions knows that this usually results in several mismatched pieces of wood bolted unsteadily together and a mysterious pile of leftover screws.

Scale this process up to a whole house and the importance of accuracy becomes even more pressing, which is why Salford-based offsite manufacturer Seddons construction has invested heavily in specialised equipment and cutting-edge software to ensure the finished product emerges exactly as the design intended.

The most crucial element of Panaloc's approach is its use of computer numerical control (CNC). This allows Panaloc's team of IT experts to turn an architect's drawing into a virtual 3D model and interrogate it to find the most efficient way of building it.

This collaborative process means the number of people on the factory floor can be kept to a minimum. For example Seddons employ just two plumbers but can produce hundreds of bathrooms a week, because of the assembly line process.

Three bed houses can be made up of individual floor, wall and ceiling panels, which were then assembled into boxes designed to fit seamlessly together on site.

Tolerance is a major issue. If you put 20 components together and they are all half a millimetre out, you will be 10mm out by the end. CNC ensures this doesn't happen.