Bolsover is a market town of about 11,000 people and the administrative centre of the Bolsover district in Derbyshire. The Domesday Book of 1086 lists it as Belesovre, held by William Peverel. The present castle was erected in 1613 on the earthworks and ruins of a 12th-century medieval castle. The nearest National Rail station is Langwith-Whaley Thorns, three miles away, and two railway lines that once served the town closed long ago.
The civil parish of Old Bolsover takes in the town, the New Bolsover model village, Hillstown, Carr Vale, Shuttlewood, Stanfree, Oxcroft and Whaley, so the housing around Bolsover is spread across several settlements. Each has its own history and house types, and the survey is how we learn what yours is.
For rooflights, that suggests a few patterns. In the old town around the castle, roofs are typically pitched and many frontages matter to the street. A conservation-style unit lies level with the slope, so the roofline reads much as it always did. In a model village such as New Bolsover, houses were laid out as a planned group, so neighbouring roofs share a form, and a rooflight on a rear slope is more discreet than one facing the road. In the outlying settlements and newer streets, the loft and roof are the main questions, because the construction varies.
The survey does not depend on street history. What matters is the roof above the spot you use. A hall that needs light, a table that sits too far from the window, a bedroom in the roof with a gloomy corner: these are the same wherever they occur.
For bungalows and dormer bungalows, the roof space often takes a roof window serving a room in the roof, and Approved Document B can accept it as an escape window where the storey is within 4.5 m of ground level, provided the clear opening is 0.33 m² or more and no side measures under 450 mm. Loft rooms are covered in roof windows for loft conversions.
Extensions on the back of older houses are common wherever space allows, and a flat roof with a rooflight over the table or worktop is the usual cure for the dark middle they create.
The roof is the common thread. Whether it is slate on an older house, concrete tile on a newer one or felt on a flat extension, we identify the covering on the survey visit and match the flashing to it. A rooflight that sits well in the roof lasts well, and the time spent looking at the covering before ordering is the cheapest part of the whole job.