Project confirmed abandoned in March 2025.

In August 2021 an announcement was made by US firms Blackstone and Hudson Pacific that they were planning to build a large new film studio centre in Broxbourne, north London – about a mile from the OMA One and OMA X studios in Waltham Cross, which opened in 2020 and 2021. It is about 24 miles east of Leavesden and 17 miles from Borehamwood, where several existing and planned studios are located.
This was to be a development by Sunset Studios, who are based in California. Movies such as La La Land and When Harry Met Sally were filmed on their stages but their history goes right back to the earliest days of Hollywood and TV shows like I Love Lucy. The site is next to the A10 at Junction 25 on the M25 and covers 91 acres. They were proposing a scheme with about 125,000 sq metres of production space including 21 sound stages plus workshops, offices and amenities. The stages were to be of various sizes and mostly arranged in blocks of two or three. The total floor area for the stages was around 470,000 sq ft – an average of 22,400 sq ft but some were going to be much larger than this. There was also a back lot of around 30,000 sq metres planned. The architects were Leonard Design.
The facilities were to be arranged in ‘hubs’, enabling 4 films or high-end TV productions to be made at the same time. Two large car parks were included but the studios were also intending to run free shuttle buses to local railway stations. A large area of accessible open space to the south of the studios would be made available and the area next to the river was also to be landscaped. Existing farm buildings were to be restored and become part of the studios’ facilities. Solar panels were going to be installed throughout the site. The development was expected to provide around 4,800 jobs once fully up and running.
The construction would cost £700m and had the support of the government and the local authority, who were involved throughout the design process. Consultation with the local community began in the autumn of 2021. The response was overwhelmingly positive. Planning permission was submitted in March 2022 and was granted in July 2022. According to the press, the owners anticipated opening in 2026. In fact, in March 2024, the studios’ website still said ‘Opening 2026.’
thanks to Googlemaps
Unfortunately, in the summer of 2023 there were several reports that construction work on the studios had been put on hold. A Screen Daily news release on 13th July stated:
‘Last week Sunset Studios, owned by Blackstone and Hudson Pacific, paused construction on its planned new £600m facility in Hertfordshire amid wariness about rising costs. Blackstone declined to comment and uncertainty remains over the owners’ long-term intentions for the facility.’
The report also stated:
‘UK studios are facing a challenging few months as uncertainty about a potential rise in the rate of property taxes for facilities in England and Wales rages on, and the ongoing US writers’ and expected actors’ strikes force a slowdown in the once torrential flow of film and high-budget TV from Hollywood.’
‘Significant business rates hikes of up to 200%-300% are being mooted as a result of increases in the rateable value of these facilities made by the UK’s Valuation Office Agency (VOA). For existing studios, the increases, which were due to start in April, will be phased in over three years. However, new studios will have to pay the full amount from the outset. Frantic lobbying is taking place to ensure the rates increases are not too punishing.’
‘“If [the rises at the top rate go] ahead, that could be a death blow for many of the studio businesses in the UK,” warns Iain Smith, chairman of the British Film Commission’s national advisory board.’
Despite the apparent pause in construction, the Sunset Studios website was reporting the news that the studios were planning to expand onto land owned by a country club. The area was to be used as a backlot and the former clubhouse would be demolished and workshops constructed there instead.
In April 2024 the studio website carried the following message:
‘We are pleased to announce that after 9 months of works our project has gained momentum with groundworks across the site near complete. As we move forward to the next phase, we have been assessing the current climate and intend to continue once market rates and construction financing stabilise.’
The same message was still on their website in October 2024 but rumours were widespread that the studios would not be going ahead.
Sadly, on March 24th 2025 the inevitable news was released – this project has been abandoned. According to the local council, Blackstone and Hudson Pacific Properties are now undertaking a feasibility study to look at alternate uses for the site.
The cancellation of this project comes at a time when the rapid expansion of content by the TV streaming companies has ended. Netflix, Prime and Disney are continuing to invest in content but not at the rate they previously were. Around the same time as this announcement came the news that Apple TV+ were still losing money and were halving their content expenditure in the coming year. It seems that the combination of reduced demand along with punishing business rates means that this project was no longer a realistic business proposition. However, at the same time, Marlow Studios and Elstree North are still in the process of appealing their planning decisions and if successful will be going ahead.