Cardiff approves Central Square tower

Cardiff has approved a 50-storey residential tower beside Central Station. The scheme would add 528 build-to-rent homes and become the tallest building in Wales.


IN Brief:

  • Cardiff has approved a 178-metre, 50-storey Central Square tower with 528 build-to-rent homes.
  • The scheme replaces an earlier 35-storey consent and adds a separate pavilion building for commercial uses.
  • Delivery will hinge on high-rise logistics and programme control on a dense city-centre site beside the main station.

BlueCastle Capital has secured planning permission for a 50-storey residential tower at Central Square in Cardiff, paving the way for what would become the tallest building in Wales if built to its approved height.

The scheme is being brought forward by REAP 3, a BlueCastle subsidiary, on a site between Wood Street and Rose Lane beside Cardiff Central Station and close to the Principality Stadium. Approved plans provide for 528 build-to-rent apartments, made up of 344 one-bedroom and 184 two-bedroom homes, alongside a separate two-storey pavilion for commercial uses including restaurant space. The decision replaces an earlier consent for a 35-storey scheme on the same plot.

The tower has been approved at a maximum height of 178 metres, taking it beyond Swansea’s Meridian Tower and making it one of the tallest buildings in the UK outside London. Cardiff’s planning committee approved the scheme subject to conditions and a section 106 agreement, allowing the final undeveloped plot in the Central Square masterplan to move into a new, more vertical phase.

For the delivery side, the project brings a different challenge from a conventional city-centre residential block. The location sits inside one of Wales’ busiest transport and event zones, which means access, logistics, and pedestrian management will carry unusual weight through both pre-construction and build phases. Design details released with the scheme indicate two staircases and five lifts, reflecting both the scale of the building and the operational demands of high-rise residential use.

The project also shows how build-to-rent developers are continuing to push density upward on city-centre sites with strong public transport connections. BlueCastle has framed the scheme as a transit-oriented development, and that description fits the site: next to the main station, inside the commercial core, and already surrounded by major regeneration activity.

Whether the tower resets Cardiff’s residential market will depend on funding, procurement, and programme discipline as much as height. Planning permission secures a striking addition to the skyline, but the more immediate significance is practical: another large, technically demanding urban scheme has moved from concept toward delivery in a location where buildability will matter as much as design ambition.