Currently 44 people can be accommodated on the site.
According to the paper, the need for additional space has been requested by visiting groups.
A neighbouring property has opposed the application.
The paper states the objection is over a range of concerns, including visual worries, privacy effects, noise and traffic.
The submission also stated concerns around the private road not meeting minimum standards.
The recommendation in the paper is for the consent to be granted, subject to conditions.
During his assessment, Wang found the visual, privacy and noise effects were likely to be less than minor.
He said the only significant difference between the external design of the shed compared with the new building was windows and a first floor deck.
He said tools could be used, including opaque glazing on windows, trees and hedges, to mitigate the effects for the neighbouring property.
The hearing will be heard on Friday, September 13, at Hastings District Council.