Cornerstone
Behind the lens, photographing architecture on site
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From behind the lens to behind the strategy

Cornerstone was built on a simple passion: helping great businesses in the built environment be seen, understood and trusted.

Founded2010
BasedLondon EC2
FocusBuilt environment

The short version

Theo Tziapouras, founder of Cornerstone Group

THEO · FOUNDER

We didn't start as a marketing agency. We started behind a camera, photographing architecture and building some of the UK's first virtual tours. Over fifteen years, that craft grew into a full studio built for one industry.

We kept meeting the same problem: exceptional design and construction brands doing brilliant work, but not showing it off. The photography was our way in. The strategy was what they were missing.

So we brought it all together. Today, Cornerstone is the partner that can shoot your project, build your site, and grow your visibility, all pulling in one direction.

OCL Abbey Place

The belief

Great marketing isn’t about shouting louder. It’s about communicating better.

It's about showing what makes your business different, and building systems that consistently turn that story into results.

01 / TIMELINE

How we got here

2010
Biztour is born
We launch as one of the UK's first 360 virtual tour agencies, partnering with Google as early adopters of their Trusted Photographer programme.
2013
Behind the lens
We expand into architectural photography, working with the likes of Derwent London, Equitone and the English National Ballet, and spot a gap: brilliant design and construction brands were not showing their work off.
2019
Local Territory
We launch a digital marketing agency built around SEO and conversion-driven design, adding strategy to the craft.
2022
Cornerstone Group
Photography, tours and marketing consolidate into one studio built for the built environment: seen, understood and trusted.

Now, let’s write your next chapter