Renzo Piano’s Shard Place flats years late and £91m over budget

But construction is still ongoing at the 176-home project, which is now expected to be complete in November or December, three years after its initial due date, CN understands.

At the beginning of 2023, building system testing, fire certification, retention settlements and snagging works all still needed to be completed.

Delays to the scheme have cost at least an additional £91 million, according to newly published company accounts filed by developer St Thomas Street Development (STSD). STSD is controlled by the Qatar Central Bank, which is owned by the state of Qatar.

Last year, an adjudicator awarded STSD £1.9 million in damages from Halsion, the mechanical and electrical specialist that installed the initial generator. Halsion is seeking to recover the payment through a High Court appeal.

STSD expects to be involved in building works for up to a year after practical completion, according to its most recent accounts.

Source:Richard Waite

Halsion, STSD and Mace declined to comment. Renzo Piano Building Workshop and Adamson Associates have been contacted for a response.


A component also failed within one of the apartment’s water softeners, damaging 24 apartments, a riser and the gym. Rectification work is still under way and expected to cost £7 million, which the developer is looking to recover through insurance.

Shard Place, a development of 176 luxury apartments with a roof garden and outdoor pool on the top floor, will constitute the third and final phase of the Shard Quarter, a multi-decade development.

STSD estimates that £25 million of the £91 million was required to replace a standby generator, as the one originally installed was too small to provide power to the fire-safety systems if the building’s main power supply failed.

Construction manager Mace oversaw completion of the superstructure and cladding of the 27-storey Shard Place in 2019, with the project scheduled to achieve practical completion in 2020. Adamson Associates worked as executive architect.

Halsion’s contract was terminated in February 2022 on the grounds that it was required to pay for and install a replacement generator, an obligation which Halsion disputes.

Problems have beset the final phase of the Shard Quarter development at London Bridge, which also includes the Shard and the News Building, documents seen by the Construction News show. They include a faulty generator and a water leak.

The developer said ‘significant’ lead times on the replacement had been exacerbated by global supply chain issues.

The scheme by the Renzo Piano Building Workshop, which replaced the 1950s Fielden House office building on London Bridge Street and a neighbouring 1980s block, was approved nine years ago.