Fishburn Airfield

Garmondsway is a small dispersed hamlet in the parish of Kelloe in County Durham, England situated between Durham and Sedgefield. It is notable as including substantial remains of an abandoned village including an extant ridge and furrow field system and became a scheduled monument in 1957. It was formerly part of the extra-parochial chapelry of Garmondsway Moor due to its ownership by Sherburn Hospital. Garmondsway Moor was also a civil parish between 1866 and 1937. King Canute (1017–1035) reportedly walked five miles barefoot from Garmondsway to Durham Cathedral on pilgrimage, and gave the church a large estate around Staindrop and Gainford.

Bishop Middleham Quarry is a disused quarry, about 4 kilometres (2.5 mi) north-west of Sedgefield, County Durham, England. Quarry-working here ceased in 1934, and the site has since been colonised by vegetation. The underlying rock is Magnesian Limestone and this has had a strong influence in determining the range of plant and animal communities now found there. In 1968 the quarry was designated as a biological Site of Special Scientific Interest (SSSI). The SSSI boundaries were revised in 1982 to exclude areas which were no longer found to have high wildlife interest due to tipping and quarry reworking. The site contains a variety of vegetation types including woodland, scrub, and several grassland communities. The most important part of the site from a biodiversity conservation perspective is the species-rich unimproved magnesian limestone grassland, which covers just under 4.6 hectares (11 acres) of the site. Only 270 hectares (670 acres) of this habitat exist in Britain, two-thirds of it in County Durham. Magnesian limestone grassland supports an assemblage of calcicolous plants adapted to growing in thin soils with a short sward. The quarry holds one of the largest British populations of the dark red helleborine, Epipactis atrorubens; a survey in 2010 found nearly 1700 flowering spikes of this nationally rare species. The quarry is a breeding site for the Durham argus butterfly, a local race of the brown argus found only in northeast England. The site attracted the interest of birdwatchers in 2002 when a pair of European bee-eaters took up residence, raising two young, only the third breeding attempt ever in Britain. Bishop Middleham Quarry is managed as a Nature Reserve by the Durham Wildlife Trust.

NETPark, or the North East Technology Park, is a science park in Sedgefield, Durham. It is owned by Durham County Council and run by Business Durham, the business support service of the council, with strategic partners Centre for Process Innovation (CPI) and Durham University.NETPark hosts three national catapult centres: CPI was a founding partner of the High Value Manufacturing Catapult in 2011 and are joined by the North East Centre of Excellence for Satellite Applications and the Space Enterprise Lab NETPark, part of the Satellite Applications Catapult, and the Compound Semiconductor Applications Catapult North East. CPI also manages three national innovation centres at NETPark: the National Formulation Centre, the National Printable Electronics Centre and the National Healthcare Photonics Centre. It is also home to Orbit, Durham University's enterprise zone, and the university's Centre for Advanced Instrumentation. NETPark was opened in 2004 by the local Member of Parliament for Sedgefield and Prime Minister of the United Kingdom, Tony Blair.

NETPark or North East Technology Park is a science park in Sedgefield, County Durham, England. The County Durham science park is on the site of the former Winterton Hospital and is home to over 40 companies, employing over 600 people. Sectors include advanced materials and manufacturing, nanotechnology, X-Ray technology, semiconductors, defence, electronics, photonics, robotics, pharmaceutical and space and satellite technology. Since its inception in 2000, NETPark has developed a number of facilities including the NETPark Plexus, NETPark Discovery 1 & 2 and NETPark Explorer buildings totalling over 127,000 sq ft of space. In 2021 Durham County Council approved a £50m investment to fund an additional 270,000 sq ft of space over the next five years. NETPark is owned by Durham County Council and managed by Business Durham. NETPark is the only UK Science Park with two National Catapult Centres CPI's High Value Manufacturing Catapult and North East Centre of Excellence for Satellite Applications. NETPark is home to three national innovation centres all managed by Centre for Process Innovation including National Printable Electronics Centre, National Formulations Centre and National Centre for Healthcare Photonics. Durham University is also part of the science park, through Orbit, the new University Enterprise Zone and The Centre for Advanced Instrumentation, which was the first building to be constructed on the site in 2004.

Winterton Hospital was a psychiatric hospital north of Sedgefield in County Durham, England.

Raisby Hill Quarry is a Site of Special Scientific Interest in east County Durham, England. It lies just under 2 km east of the village of Coxhoe. The site is a working quarry and has been designated as of national importance in the Geological Conservation Review. Until 1984, the site included most of the area that now forms the Raisby Hill Grassland SSSI. The quarry exposes a section through the Marl Slate and the Ford and Raisby Formations of the Upper Permian. It is the type locality for the Raisby Formation, a carbonate unit of the English Zechstein sequence. The exposed sequence commences with the Yellow Sands, which are overlain by the Marl Slate and some 200 feet of calcareous and dolomitic limestones.

Fishburn Grassland is a Site of Special Scientific Interest in the Sedgefield district of County Durham, England. It lies between the villages of Fishburn and Trimdon, just north of the former. The site consists of a small area of species-rich magnesian limestone grassland, a vegetation type that is rare nationally and mainly restricted to County Durham and Tyne and Wear. There are two distinct plant communities, the larger of which, dominated by blue moor-grass, Sesleria albicans, and small scabious, Scabiosa columbaria, is known only from east Durham. The other community, dominated by upright brome, Bromus erectus, is common on limestone in southern England but is at its northern limit in Durham, where there are no other protected sites.

Bishop Middleham is a village in County Durham, in England. The population of the parish as taken at the 2011 census was 1,275 It is close to Sedgefield.

Fishburn is a village and civil parish in County Durham, in England. It is situated about 12 miles west of Hartlepool. It had a population of 2,454, increasing to 2,588 at the 2011 Census.

Raisby Hill Grassland is a Site of Special Scientific Interest in east County Durham, England. It lies just over 1 km east of the village of Coxhoe. The site consists of a small disused quarry and the undisturbed part of Raisby Hill, as well as a small area of wetland alongside Raisby Beck. It formed part of the Raisby Hill Quarry SSSI until 1984 when it was removed and, with some expansion of the area, notified as a separate SSSI. In the undisturbed part of Raisby Hill primary magnesian limestone grassland is the main vegetation type. Blue moor-grass, Sesleria albicans, is abundant, and there is a rich assemblage of species characteristic of calcareous soils, such as quaking grass, Briza media, meadow oat grass, Avenula pratensis, glaucous sedge, Carex flacca, and fragrant orchid, Gymnadenia conopsea. The skeletal soils in the abandoned quarry at the southwestern end of the site support the largest population of dark-red helleborine, Epipactis atrorubens, in County Durham. Other species found here include rock rose, Helianthemum nummularium, frog orchid, Coeloglossum viride, and pyramidal orchid, Anacamptis pyramidalis. The site supports a breeding population of Durham Argus butterfly, Aricia artaxerxes salmacis, a form which is only found in the magnesian limestone areas of Durham.

Hardwick Hall in Sedgefield, County Durham is a building of historical significance and is listed on the English Heritage Register. A major part of it was built in the late 1700s but it is possible that some of it dates from about 1634. It was the residence for many notable people for two centuries. It is now a hotel which provides accommodation and restaurant services and caters for special events particularly weddings.

Hardwick Hall Country Park is a park located in County Durham near Sedgefield. It is registered with the Register of Parks and Gardens as a II* site, which indicates that a park is "of exceptional historic interest."