At Block in a Box we have partnered with Sussex Airspace Developments for any airspace development needs you may have.

Every flat-roofed block of flats has the potential to have new accommodation added above it. Taking that opportunity can allow for a host of upgrades and enhancements to the existing building being undertaken at no cost to the leaseholders or freeholders.

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These can include but are not limited to:

  • A brand new roof guaranteed for 20 years;
  • A schedule of major works;
  • New communal facilities;
  • Installation of a brand new lift;
  • Improved site configuration, security and entry systems.

The benefits of adding new apartments to the existing rooftop and having a major uplift to the property aren’t just an improvement in amenities and kerb appeal but also lower service charges spread over a greater number of leaseholders and an increase in leasehold values.

Where no works are needed to a property, having the rooftop developed can still be hugely beneficial because it creates the opportunity of adding a cash injection to a sinking fund for future use.

Sussex Airspace Developments have been working with Residents Management Companies to realize that potential of adding accommodation to their rooftops and in doing so saving their leaseholders’ money in maintenance and repair costs.

Using offsite modular construction to minimise disruption to residents, the new apartments can be manufactured to up to 90% complete and installed on-site in just a few days.

Liaising with RMC directors, leaseholders and residents at every stage of the process our experienced team of surveyors, architects, consultants and construction professionals will oversee the project from start to finish.

View our short explainer video below:

For more information or to arrange for a site visit and no-obligation feasibility study, simply complete the form below. Alternatively, you can call the team on 0333 015 4145 or email

Request a Quotation

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