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Cooling is a small village located on the chalk ridge of the Hoo Peninsula. Its most notable feature is the 14th century ruined castle. It also possesses a public house and Church.

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

St James' Church, is a redundant Anglican church in the village of Cooling, . It is designated by English Heritage as a Grade I listed building Link and is under the care of the Churches Conservation Trust. The church stands in the Hoo peninsula, 6 miles north of Rochester, with only marshland to the north between it and the River Thames.
The church originates from the 13th century, with its building continuing into the following century. The upper part of the tower was added later, and was completed by about 1400. The church was restored in the 19th century.
Wikipedia: Link