Walsall Council planning officers have given the green light to Trimselter Ltd to construct the unit on vacant land, which is part of an industrial estate on Newfield Close.
The developer said the area was once part of an old railway line but is now overgrown and used as a dumping ground.
They added the land had previously not been viable to develop due to ground conditions but this has now been rectified.
It is estimated around 15 new jobs will be created once the factory is built and up and running.
A previous application to redevelop the site with a similar unit was approved in 2018 but was not brought forward.
In their application, they said: “The application site stands at the end of Newfield Close, which is an industrial estate off Green Lane to the north of Walsall.
“The land has been vacant for many years and had become badly overgrown and subject to fly-tipping. Its last known use was part of an old railway line.
“The new building is proposed to be constructed in profiled plastic-faced metal sheeting and roofing with grey upvc windows and doors to the office section. This type of construction is typical of the surrounding buildings.
“As the site is on an industrial estate there are no conflicting issues with other land usage.
“The site is well served with transport links with bus routes just 400 metres distant in Green Lane and car parking and secure cycle storage is provided in excess of the council’s standards.
“The approval of this planning application will remove a very untidy and dangerous patch of land which dominates the end of this industrial estate and instead provide accommodation for a business which will benefit the community by providing jobs and services or products.”