The top floor apartment at St Stephen’s Avenue in Shepherd’s Bush had no access to a garden and a tall, undeveloped hall well. We were tasked with extending the existing staircase and installing a mezzanine landing with skylight above and wide bifold doors leading onto a secure rooftop terrace, offering uninterrupted views of the London skyline. A skylight was also set within the terrace floor bringing a sense of space and yet more light into the property.