The owner

Castleforge is an investment firm with a clear purpose: to create places, products and platforms that transform the experience of the built environment, increasing prosperity, productivity, opportunity and sustainability.

Central to Castleforge’s values is being a socially responsible business that seeks to make a positive impact on the communities where they invest. This means effective engagement with local communities, the provision of local community spaces in buildings and the revitalisation of heritage buildings and local landscapes for future generations.


Castleforge also champion leading green energy and recycling practices in their buildings, and as a company they participate in the Global Real Estate Sustainability Benchmarks (GRESB) and UN Principles of Responsible Investment.


Castleforge recognise that 1 Golden Lane has to change to protect its long-term attractiveness. Their investment will facilitate this change in order to create a building that will deliver contemporary, efficient office space which will in turn unlock wider benefits and enable us to protect its heritage, improve its sustainability and better respond to the community in which it sits.

Previous Schemes
160 Aldersgate, EC1A 4EU

A previous refurbishment completed by Castleforge was 160 Aldersgate, a 1980s office building. By opting for a refurbishment, the project was significantly more environmentally friendly than a full redevelopment and created contemporary, healthy workspaces which enhanced the best qualities of the existing building’s features.

Broadwalk House, EX1 1UA

The refurbishment of the Broadwalk House office building has created flexible and distinctive contemporary workspaces that are carefully designed to accommodate a variety of different ways of working.

Special emphasis was given to the design of the communal and breakout spaces in the building.

Greenside House, N22 7DE

Clockwise Wood Green, Castleforge’s shared office concept at Greenside House, offers locals a place to rent a workspace near their home – particularly apt for those now working from home who don’t have enough space to establish a proper work area. The work focused on visually
reconnecting the building to Alexandra Park and other nearby green areas, upgrading the space to be more open, welcoming and inspiring for tenants, and tapping into Wood Green’s heritage of creators and makers by commissioning bespoke artworks from local artists.