Northumberland County Council has insisted that the Morpeth Northern Bypass project has not been delayed by a winged animal.
Rose Cottage in Fulbeck will need to be demolished to make way for the new link road, but workers on behalf of the authority will first have to move some bats that have made the building their home.
Works started on the £30million scheme in March after it was given final approval by the Government.
It will create a 3.8km bypass to the north of Morpeth, running from the Whorral Bank roundabout to the A1 trunk road between Fairmoor and Lancaster Park.
A county council spokeswoman said: “We have received confirmation from Natural England that our protected species licence has been accepted for examination. Once this licence is granted, we will be able to carry out the necessary work to relocate the bats from Rose Cottage.
“This was always a planned activity and has been built into the scheme construction programme.
“It will not cause any delays or undue difficulties to the development.”