Geograph - photograph every grid square

Hardwick is a village with a large housing estate located about 6 miles west of Cambridge. The village lies immediately south of the A428 road between Cambridge and St Neots.
The first recorded mention is in 991 AD and an entry in the Domesday Book of 1086. Hardwick used to consist of just a few houses and farmland around St Mary's Church, on what is now the southern edge of the village. It has expanded greatly since the 1960s, mainly due to an estate of hundreds of houses built on the orchard land to the north of the original hamlet.
The Blue Lion, the only pub in the village, lies on Main Street. The Sports and Social Club is based next to the football and cricket pitches in the centre of the village.
The village shop and post office are also on Cambridge Road.

Listed buildings and structures are officially designated as being of special architectural, historical or cultural significance. There are over half a million listed structures in the United Kingdom, covered by around 375,000 listings.
Listed status is more commonly associated with buildings or groups of buildings, however it can cover many other structures, including bridges, headstones, steps, ponds, monuments, walls, phone boxes, wrecks, parks, and heritage sites, and in more recent times a road crossing (Abbey Road) and graffiti art (Banksy 'Spy-booth') have been included.

In England and Wales there are three main listing designations;
Grade I (2.5%) - exceptional interest, sometimes considered to be internationally important.
Grade II* (5.5%) - particularly important buildings of more than special interest.
Grade II (92%) - nationally important and of special interest.

There are also locally listed structures (at the discretion of local authorities) using A, B and C designations.

In Scotland three classifications are also used but the criteria are different. There are around 47,500 Listed buildings.
Category A (8%)- generally equivalent to Grade I and II* in England and Wales
Category B (51%)- this appears generally to cover the ground of Grade II, recognising national importance.
Category C (41%)- buildings of local importance, probably with some overlap with English Grade II.

In Northern Ireland the criteria are similar to Scotland, but the classifications are:
Grade A (2.3%)
Grade B+ (4.7%)
Grade B (93%)

Read more at Wikipedia Link