Plans to change 'Olditz' retirement block into affordable homes submitted The Marina Gardens development in Portishead was initially built as a retirement complex - but no one ever moved in Updated Marina Gardens in Portishead (Image: Alliance Homes) GET THE BIGGEST STORIES FROM ACROSS SOMERSET STRAIGHT TO YOUR INBOXInvalid EmailSomething went wrong, please try again later. SIGN UP When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice Plans have been submitted to use a huge retirement living block in Portishead - dubbed 'Olditz' by locals - for social housing.