The extension would be built on the site of the Challenger Learning Centre outside the entrance to the main building.
The extension would add 9,200 sq ft to the footprint of the National Space Centre.
The space could be used for corporate events, temporary exhibitions and public lectures.
The National Space Centre already boasts a wide range of meeting facilities.
The Sir Patrick Moore Planetarium, the largest planetarium in the UK, will seat up to 190 delegates. A series of Shuttle Suites are designed to accommodate between 30 and 70 delegates theatre style. The Hub of the Galleries is the largest events space seating 350 for a theatre style presentation or 300 guests for a dinner.
National Space Centre is located just off the A6 north of Leicester city centre.
Details: https://venuehire.spacecentre.co.uk/
