Industrial investment opportunity: former Mattel factory in Potters Bar

November 10, 2025

Kirkby Diamond has been instructed to bring to market a substantial industrial investment - formerly home to global toy manufacturer Mattel - in Hertfordshire. 

Kirkby Diamond has been instructed alongside Moore Hunter to market the properties - once occupied by Soundcraft Harman International Industries, part of the Samsung group - offers are invited in the region of £12.75 million. 

The properties, in Potters Bar, comprise of Cranborne House and Summit House, together covering 202,743 sq ft over 2.6 acres.

  • Cranborne House is a mid-1980’s, four-storey concrete frame building totalling 149,690 sq ft (13,906 sq m). Originally developed as Mattel’s toy factory, it is now a multi-let industrial building. Levels one and two are subdivided into two units each, with levels three and four arranged as single floors. The building benefits from an eaves height of 5.5m.
  • Summit House, constructed in the late 1950’s, provides 53,053 sq ft (4,928 sq m) of industrial warehouse space arranged over two levels, each with goods and vehicle access.

The properties generate a total passing rent of £1,101,952 per annum with an average rent of £5.53psf.
The assets are located on Cranborne Industrial Estate, the largest industrial concentration in Potters Bar, approximately 1.2 miles north of the town centre. The estate is home to major occupiers including QED Productions, Wolseley, Rolls Royce, TSG and Howdens, with limited scope for expansion in the area.

Paul Quy, industrial and logistics partner, said:

"This is a very rare opportunity to acquire a large industrial investment in a tightly constrained market. Potters Bar benefits from exceptional transport links, proximity to Greater London, and strong occupier demand across the Hertfordshire and South east industrial markets. We anticipate strong interest from investors, developers, and owner-occupiers looking to capitalise on the site’s scale and connectivity."

Potters Bar is a well-connected town within the London commuter belt, offering direct access to the M25 and A1(M), as well as fast rail services into central London. Its location and connectivity underpin its appeal as a strategic industrial and logistics hub.

Kirkby Diamond is inviting offers in the region of £12.75 million for the freehold interest. A purchase at this level reflects an attractive Net Initial Yield of 8.09% and potential reversion of 9.72% (assuming enhanced purchaser’s costs of 6.78%). This reflects a Capital Value per square foot of £63 psf.

For further information or to arrange a viewing of the property, contact: 

Paul Quy: paul.quy@kirkbydiamond.co.uk | 07917 268653

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