Blue Circle Concrete Offices
August 2021 | England | Extant
Note – this site is owned by the Ministry of Defence as of 2026. Trespass on this site is a CRIMINAL OFFENCE, so for your own good DO NOT GO HERE otherwise you will be trespassing on MOD property and a nuclear licensed site.
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These offices make up part of a larger complex of former headquarters buildings, in a former country estate. Sadly, the whole site is abandoned and derelict, with all the buildings decaying slowly. These offices are a very grand and imposing set, built in the mid-1980s and designed by a rather famous architect by the name of Richard Gilbert Scott, the great grandson of Sir George Gilbert Scott, who hailed from a long family line of architects stretching back to the 19th century. They have had many uses over the years, ranging from headquarters for a concrete company to a computer IT company. The build is impressive, built of huge cast concrete blocks all slotted into each other like a jigsaw puzzle. From the outside, the building is a hulking, brooding mass but once you’re inside it is surprisingly spacious and cavernous, especially the large foyers! Later on in 2024, the building was used as a filming location for the incredible film ‘Project Hail Mary’ as the NASA offices where Grace is told he’s going into space to save mankind.
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THE EXPLORE: so, the exploration was rather fun. I arrived at the site and found my way inside pretty quickly and was met with a motion sensor which I managed to avoid. The entire interior is littered with the bloody things – they’re everywhere! I had a very hard time navigating the inside to avoid them, but eventually, I set one off. And then after setting them off, I just threw caution to the wind and walked through the place as if I owned it. The interior layout was confusing as anything because stairs and passageways led off in every direction. It was hard to stay coordinated! However, after an hour and a half, I heard sirens on the roads. I didn’t think those were for me, but, they were, as ten minutes later, when I finished photographing the boiler room, I heard radio chatter. Police!!! I hid for a few minutes and contemplated making a break for it, but when looking down the huge underground car park tunnel, I could see torches at the far end… my end of the tunnel was blocked off by a grill. So, I gave myself up. Turns out, six cars and twelve officers had rocked up. So much for being understaffed, under-resourced and all that they claim! However, they were amicable and once they realised that I wasn’t a burglar (almost instantly) they were chatty and friendly. I was escorted off site and that was that.
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ENTRANCE FOYER
Showing the large foyers and halls…
NORTH STAIRCASE
Showing the magnificent staircase, which was featured in Project Hail Mary…
STAIRCASE
Showing one of the interesting spiral staircases…
OFFICE FLOOR
Showing one of the office floors…
PLANT ROOM
Showing the plant room which for a fan of industry like me was brilliant…



































