Scottish Government Ministers upheld the council's decision to reject permission for approximately 320 new houses on the sites in Linlithgow.
At Burhgmuir, Wallance Land wished to build around 200 new houses on agricultural land, but the planning permission was refused by the council in November 2013.
Over 80 objections, including from Linlithgow and Linlithgow Bridge Community Council, were received against the proposal.
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The effect the proposed development would have on the form and character of the historic town was not seen as acceptable, while its location (far from the town centre) would add to increased car journeys into the town.
At Clarendon, Gladman Developments wished to build a further 119 properties on agricultural land.
Objections were received from over 200 residents and the community council, with the council refusing the planning application in March 2014.
Following a second appeal the proposal at Clarendon has also been dismissed.
At the appeal, it was found that the development would have an adverse impact on the capacity of Low Port Primary School.
A spokesperson for the council's Planning Service said: "The council is pleased with the outcomes of the two important appeals.
"In particular the results reinforced the council's position of ensuring that any future development in Linlithgow must respect the attractive setting on the town, not lead to extra congestion in the town centre and recognise capacity issues at local schools."
(LM)
