The Home Office


Terry Farrell & Partners


Terry Farrell & Partners



  • Circular Sliding Doors by Open Entrances
  • Circular Sliding Doors by Open Entrances

Design Brief / Overview

For the Home Office and working with Architects Terry Farrell & Partners, Open Entrances' design brief was to achieve a transparent bomb blast screen, security circle locks and air locks with glass as the predominant material.


Open Entrances re-engineered an approved and certified curtain wall system and obtained assessment approval. This achieved full height glass without the necessity for horizontal transoms at one metre intervals.

Traditionally, security circle locks are clad in aluminium or steel, forming a solid tube with small glass sliding doors. Open Entrances designed this structural product to provide full height glass for each individual entrance ranging from 2800mm to 4800mm. Each circle lock is equipped with a two-zone matting system, eliminating weight sensors which might allow 2 people to enter at the same time.

The air locks have been equipped with Open Entrances' unique electro-mechanical in-ground swing operators to activate the doors, thus eliminating unsightly surface mounted door operators and creating a clean and transparent look.

Key Features:

  • Transparent bomb blast screen
  • Electro-mechanical in-ground swing operators
  • Full height glass without horizontal transoms


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Open Architecture & Technology for Entrances Ltd

Monaco House, Station Road,

Kings Langley, Hertfordshire.