Work will begin at Parkside Hall on Monday, February 15, to improve the car park and install floodlights to make the area safer at night.
Access to the Alameda School sports hall and car park will be restricted, but kept open as much as possible.
The site will be closed on Friday 11, Saturday 12 and Monday 14 of March.
A Parkside Hall Trustee said: “The first phase of the work lasting for over two weeks will involve clearing the old netball court, constructing new drainage and installing power cables for the new lighting.
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“The whole old netball court and Nottingham Room site will then be excavated and hard core and an under- surface laid.
“A small garden area will be formed in the corner at the back of the Hall.
“The second phase, mainly in week 3, will involve work on the existing Parkside car park.
“Fencing and debris will be cleared, ducting constructed and old concrete areas removed.
“The area will then be prepared for laying the top surface and the light columns and lamps be erected.”
Central Bedfordshire Council, managing the project, has advised parents about disruption during the schoolrun.
Acoustic fencing has already been installed between the Hall & Agate House and the work will start over the school half term to avoid disruption as much as possible.
Parkside Hall visitors can use alternative car parking at The Park’s central car park across the road.
The spokesman added: “Thank you for your cooperation during this difficult period and the disruption will be worth the end result.”