You have probably heard by now that one of the most iconic symbols of French history, the Cathedral of Notre-Dame was devastated by fire on Monday 15th April 2019. Within minutes the largely wooden building which took almost 200 years to build was up in flames. After over 15hrs of fire fighting the Parisian fire department managed to control the fire, though at this point the spire and most of the roof was gone. Thankfully due to the renovation work on the 850-year-old building many of the religious artefacts had been removed from the building, such as the crown of thorns.

However, there is still hope for the story yet! Andrew Tallon an architectural historian who died in 2018, used a 3D laser scanner to map the whole Cathedral. It was thought that his scans were to help in the restoration project, recording the buildings condition, with the archaeological recording and building pathology.

Tallon’s laser data consist of 1 billion data points in more than fifty locations over the Cathedral, structured as “point clouds,” which software can render into images of the three-dimensional space. As the first and second stages of the process were finished this will give contractors a massive head start as they can simply detail the existing 3D point cloud to generate a fully-functional, contractible model.


Notre Dame


Assassin Creed makers have also offered a lending hand along with a generous £450,000 to the reconstruction.

Over a 24-month period an artistic digital version of the building was created. Though some of the features such as the spire are different in the game. This is because the game is set in the French Revolution and the history of the cathedral architecture, has since changed. Developers have described the virtual Notre Dame as a landmark technical and architectural achievement. Though the digital artist did do an absolutely phenomenal job on the Cathedral, I doubt it will actually be able to be used as the underlying dataset just won’t be suitable for engineers to work with.

With these previous digital mappings and where BIM technology is today, it allows archaeologists to see the site as it was hundreds of years ago to how it is now.  It’s truly exciting to see that the real use of modern construction technology can essentially remap and design the famous Cathedral. I can’t wait to witness the reconstruction process and see it restored to its former glory; BIM will save the day!

Are you a BIM expert looking for a career move or a business looking for a specialist? I can help you find your perfect fit. You can reach me on either or 07585 975 183


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Wembley Stadium












Wembley in Numbers
• At its peak, there were more than 3,500 construction workers on site.
• 4,000 separate piles form the foundations of the new stadium, the deepest of which is 35 m (115 ft).
• There are 56 km (35 mi) of heavy-duty power cables in the stadium.
• 90,000 m3 (120,000 yd3) of concrete and 23,000 tonnes (25,000 short tons) of steel were used in the construction of the new stadium
• 2,618 toilets
• 47 retail units
• 164 turnstiles
• 26 lifts
• 30 escalators
• 34 bars
• 8 restaurants
• 688 food and drink service points
• 98 kitchens
• The seats are spread over three tiers: lower 34,303, middle 16,532 and upper 39,165

General Stadium Facts
• The new Wembley reopened its doors in 2007
• The original Wembley Stadium was known as the Empire Stadium, and was built as the centrepiece of a British Empire Exhibition at the end of the First World War
• The stadium has a circumference of 1 km
• There are 107 steps in the trophy presentation route – the old stadium had 39 steps
• The new Wembley encloses 4,000,000 m³ inside its walls and under its roof. This is the equivalent of 25,000 double-decker buses or 7 billion pints of milk
• The deepest of the piles that form the foundations, at 35 metres, is as deep as the Twin Towers were tall
• The new pitch is four metres lower than the previous pitch
• The stadium’s pitch is enhanced by desso technology which combines synthetic grass with the real Wembley grass to strengthen the surface
• This system provides a consistently high standard playing surface at Wembley and enables the multi-use venue to host football, rugby, American football and music events
• The pitch is covered by specially designed protective panels for rock concerts which creates space for up 25,000 fans to stand
• Each of the two giant screens in new stadium is the size of 600 domestic television sets
• The total length of the escalators is the same as a 400 metre running track
• The Royal Box is in the traditional position – in the middle of the north stand – as in the old Wembley Stadium

The Arch and the Roof
• The most striking, highly visible feature of the stadium is 133 metre tall arch that sits above the north stand
• With a span of 315 metres, the arch is the longest single span roof structure in the world and is visible right across London
• With a diameter of 7.4 metres the arch is wide enough for a Channel Tunnel train to run through
• A representative from every county in England was involved in the construction of the arch
• The stadium roof rises to 52 metres above the pitch. This compares to the 35 metres tall Twin Towers of the old stadium
• The roof is over 11 acres, of which four of the acres are retractable
• The stadium has a sliding roof design which allows the pitch to be exposed to direct sunlight and ventilation whilst ensuring that spectators are covered
• The arch supports all of the weight of the north roof and 60 per cent of the weight of the southern side
• The arch ensures that there are no pillars in the new stadium which could obstruct the views of fans

The Seats
• The stadium has 90,000 seats with no obstructed views
• There are 310 wheelchair spaces and 400 press seats
• The rows of seating, if placed end to end, would stretch 54 kilometres
• There is more leg room in every seat in Wembley Stadium than there was in the Royal Box of the old stadium
• The stadium was designed with stands that are higher and closer to the pitch than the original stadium and with better uninterrupted views