The village's name comes from the Anglo-SaxonSibbwines tūn: "Sibbwine's farmstead".
Expansion from a minor hamlet
The place was a farmstead, one of three in Harmondsworth parish, south and east of the heart of that village. It had by the 1890s grown in population and gained a chapel at Sipson Green, where 18th century cottages were at the end of what by 1910 had become a semi built-up village street or lane leading to the earlier farmstead and farm workers cottages. All of these places, as today, lie north of the famous "Bath Road", which linked London to Bath.
On 10 January 1946 the British Cabinet agreed Stage 3 of the airport, which was an extension north of the Bath Road, with a large triangle of 3 runways, obliterating Sipson and most of Harlington, and diverting the Bath Road. In 2009 the majority of the village was under threat of demolition owing to the planned expansion of London Heathrow Airport, which would have created a third runway at the airport. However, in March 2010 in accordance with multilateral environmental regulations and evidence that gas pollutant thresholds would be further breached within the wider area the English High Court of Justice ruled that the plan which the Department had submitted must be reconsidered. Accordingly, the Government announced in May 2010 that the third runway plan had been cancelled but that a long-term study into airport capacity in the South East and beyond may recommend expansion to any of the London Airports where the environmental constraints can all be met. Since 2009 BAA have been acquiring property in Sipson and elsewhere when advertised for sale which means there will be fewer resident owners to oppose further plans for expansion with a third runway. Contrary to this movement, opponents such as actress Emma Thompson and various others have bought land within the boundaries in 2009 with a view to preventing such expansion. In addition to this there has been a long term occupation of land within Sipson by climate activists on the invitation of local residents, following the latest Climate Camp. Grow Heathrow is a squatted community, opposed to the expansion of Heathrow airport and committed to finding sustainable alternatives in the face of climate change, peak oil and economic crises. Further, local residents have started a new campaign in 2014 called , with widespread support from local MPs and Councillors. On 2020-02-27 A court ruled the expansion unlawful in a case brought by environmental groups, councils and the Mayor of London. The court said the government would not appeal against the judgement.
Businesses
Sipson Farm
Sipson Farm was in the northeast angle of the Sipson crossroads. It was the biggest farm in the area. It had a big area of greenhouses. It had 500 acres of land in Harmondsworth and Sipson and Harlington and Heathrow. In 1900 it had a big area of fruit orchard.
1900 to 1948; R.R.Robbins lived in a house called Hollycroft, where Hollycroft Close is now.
c.1910: Wild and Robbins gave some land in Sipson to be tennis courts and a children's playground.
1932: Thomas Wild died and was succeeded by his son Thomas Wild.
6 April 1938: Wild & Robbins was wound up "for reconstruction".
1944. The Heathrow Airport scheme started. Sipson Farm lost all or most of its land that was south of the Bath Road.
31 March 1949: R.R.Robbins left the partnership by mutual agreement, but the firm's name remained Wild & Robbins. Sipson Farm was now run by Thomas Wild and his son Thomas Wild.
1965: The M4 motorway was opened past Sipson. Its course and the Heathrow Airport slip road and its junction took much of Sipson Farm's remaining land. After this, Sipson Farm struggled to keep running.
1970: Sipson Farm shut down. Some of its remaining land was left to fall back to wild overgrown vegetation.
Early 1980s: Sipson Farm's farm buildings were demolished and replaced by a residential road called Russell Gardens. The entry to the farm became the entry to 335 Sipson Road.
23 December 1987: It was agreed that Sipson Farm Estates Ltd. should be wound up.
Wall Garden Farm
Wall Garden Farm is a little east of the Sipson crossroads, north of the road to Harlington. It was orchard land, surrounded and divided by high walls to keep winds and frost off.
Early 1900s: See Heathrow #20th century for events involving Jonathan Smith. Jonathan Smith went bankrupt and moved from Heathrow Hall to Wall Garden Farm. Later he came to an arrangement with his creditors and the bankruptcy was discharged. He set up a jam factory to use the abundant fruit grown in the area. His son Frederick ran the jam factory after him. Kenwood Close is where the jam factory was.
1970: By now most of Wall Garden Farm's trees had been grubbed out.
2004: Wall Garden Farm was being used for off-airport car parking for Heathrow Airport.
Gravel companies own much land in Harmondsworth and Sipson and Harlington. They get planning permission to extract gravel and sand on condition that they restore the land for agriculture afterwards. Their land is used for growing wheat before and after gravel extracting.
