Introductory pilot data capture of your asset

Free Pilot Data Capture Survey Request

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Mann Williams

A significant historic house was destroyed by fire in 2017. Our team worked with Mann Williams to provide a high resolution digital twin of the Grade 1 listed building as part of the early £30 million restoration process

ABOUT MANN WILLIAMS

Mann Williams are Consulting Structural and Civil Engineers with offices in Bath, Cardiff and Belfast
Formed in 1986, Mann Williams work across a wide portfolio of projects throughout the UK and Europe, covering all sectors of the built environment. Their diverse experience equips them to work on both new build and conservation projects, with a proven track record of delivering new construction in historic and re-use environments.

Their Challenge​

Creating BIM outputs from a dangerous structure

Mann Williams needed to get an accurate set of BIM plans for the remaining structure but access into the damaged parts was not safe for a traditional ground survey. We used an enterprise level drone (DJI M300) with 40MP mapping camera and high accuracy GNSS GPS to create a point cloud and digital model hosted online. This allowed different stakeholders to access quantitative information remotely and to make decisions without having to visit the site. It was also much safer since the building had was unstable and could not be accessed.

Outcomes

UAVs were the safe and reliable way of getting data from the “live” structure

Fixed the communication and information gaps the as built record for Parnham.

BIM and Revit outputs were generated shared with other partners

Enabled the creation of an accurate digital twin for Historic England records

Cost-saving, safety and efficiency benefits

Hours/days capture time*

Versus the traditional ground/roof based data capture time of weeks or even months for large assets, saving days / weeks

De-risking data capture

Versus ground or roof top inspections with ropes, scaffold and towers our aerial capture tools are “zero-touch”

Up to 80% cost saving

Versus traditional manual inspection costs by removing the expense of prolonged capture time, travel time and repeated in-person site visits

Fully digital remote inspection

Versus the traditional survey which does not “see” all of the asset from all aspects and elevations

Millions of data points

Versus ground/roof based surveys with limited access and finite resolution, allowing pinpoint accuracy across whole digital twin

3D interactive outputs

Versus the traditional 2D paper based reports and images which have limited access, coverage and quality

*For areas up to 10,000 or 1ha – roof inspection image capture in one day. Larger areas of up to 100ha are for landscape photogrammetry in one day.

Creating the BIM & Level 4 Records

Part of the requirement for the project was to work with Purcell’s in Bristol. They are specialist architects and heritage consultants. Purcell’s had requested Level 4 records, combined with raw images that could be set up on drawing sheets for issue to Historic England prior to commencement of the restorative works. We worked with Pix4D to produce BIM files and .rcp ready for AutoCAD to pass on directly to the client.

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