The development would have been a mix of apartments and houses.
Plans for over 70 new homes in the midlands have been turned down.
Westmeath County Council rejected a proposal from Shaston Construction for 71 new dwellings on the Ardmore Road in Mullingar.
The development would have been a mix of 30 apartments and 41 two-storey houses.
The planning file states the decision comes as the development would be contrary to the proper planning and sustainable development of the area.
It also cites an absence of satisfactory documentation which demonstrates the proposal would not impact negatively on local biodiversity as the other reason for the refusal.
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