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The Mumbles Coastal Protection scheme aims to protect the community against coastal flooding and rising tides and will remodel the prom as a safe, modern, inclusive visitor attraction.


Swansea Council recently secured funding under the Welsh Government’s Coastal Risk Management Programme to undertake essential Coastal Protection works to a section of the existing sea defences at Mumbles promenade. The improvement works will afford enhanced flood and coastal erosion protection to businesses and residential properties currently at long-term risk of flooding. The protection works will be undertaken from Knab Rock to a point approximately 250m north of Oystermouth Square.

Knights Brown has been appointed as the contractor to undertake the work, which is currently planned to commence in January 2023 and be completed over approximately 120 weeks. 

The project, driven by Swansea Council, will help protect the community’s homes, businesses and people for decades to come. It also aims to improve Mumbles as a destination, with new lighting, litter bins, seating and better links to Mumbles Road.



FEBRUARY 29 | 1:00 - 3:00


We would like to invite you to join us at our latest information-sharing session for the

Mumbles Coastal Protection Scheme

It is a brilliant opportunity to meet the team and ask any questions you may have about the project.


Read our latest newsletter



As our works are now progressing well on the West end of the scheme, we are now making preparations to extend our working area to the areas of the site East of Southend Slipway. As part of the Mumbles CPS scheme we are reconfiguring the Southend Car Park by relocating the existing car park spaces to Echelon parking spaces adjacent to Mumbles Road. This will enable the promenade area to be widened and enhanced.

In order to carry out these works outside the peak tourist season, we will be undertaking this phase of work over the next 6 weeks.

The Southend Car park will be closed from Thu 18th January 2024 to facilitate the car park reconfiguration with alternative parking still available to the car parking spaces to the East and directly adjacent to the promenade. There is an alternative parking ticket machine available there.

We thank you in anticipation of your cooperation and understanding during the construction works.

TRO Mumbles.PNG

Please be advised that for a two-week period at the end of February, two-way traffic lights will be operational at Southend Gardens to facilitate essential drainage improvements 
and surfacing of the new echelon parking. Following this, pedestrian access will be rerouted onto the new footway enabling the construction works to
proceed along the sloping revetment. 

Southend Gardens Temporary Traffic lights
Pedestrian Diversion Route

Archaeological Finds

We have had lots of questions about whether we have found anything of archaeological interest during our work. 


Prior to commencing work, archaeologists had documented existing known assets that could be affected by the works.

We also undertook investigation work in areas where we anticipated assets could be disturbed. As part of the project, we have an archaeologist who oversees our work and undertakes a watching brief of ongoing excavations in the peat.

To date, the following items have been discovered:

May 23: Bow Section of an oyster boat – investigated and re-buried 

Section of trackway – adjacent to one of the wrecks – old worked timber -removed to Lampeter University for further investigation 

Oct 23: Small piece of tram track.

Plaque from Swansea gas light company was lent on hire in 1891.



Mumbles is currently protected by two types of coastal defences; a 0.5km-long mass concrete vertical sea wall that runs from Oystermouth Square to the bowling green area and a 0.7km sloping revetment structure that runs from the bowling green area to near Verdi's.


Some of these existing defences were built over a century ago and are in poor condition and at risk of flooding. The flood risk level is expected to increase in the future due to predicted sea level rises. A lack of action would put a number of homes and businesses at risk of flooding. The main aim of this project is to strengthen the sea wall and raise the heights of key parts of it to protect the area from future flooding.

The project will combine enhanced coastal defences with improvements to the Promenade right next to the main seawall. 

The main areas of work will include:

  • bringing the prom up to one level as it currently dips gradually from both ends (Verdis and Oyster Wharf) by up to around half a metre in the middle section

  • strengthening the main coastal defence structure, main wall and revetment.

  • replace existing railings with a low pedestrian wall similar to that currently at the Oystermouth Square car park.

Work will include widening the existing promenade to create a share with care pedestrian footpath and cycleway. This will improve connectivity and accessibility and promote sustainable active travel. Other public realm improvements include improved seating, views and connectivity, with enhanced hard and soft landscaping.

Work will see parts of the prom closed to the public in a phased manner throughout the work, expected to take around 22 months.


Access to homes and businesses will remain throughout.

Latest Progress Flight & Images 


Latest Progress Flight & Images 
November 2023


October Progress Flight

October Update

It has been a busy month for our site team as work has continued along the foreshore and on the promenade.

We’ve been hard at work constructing the stepped bases on the foreshore, and to date, 32 stepped bases have been cast within the section by  Oystermouth Car Park.  Work will continue on the remaining stepped bases during the winter months.

Construction work has also started on the wall sections that contain weep holes cored through the existing sea wall; these holes will allow residual groundwater to pass through the new works. Once we have completed the step sections in that location they will be backfilled and we will commence concrete pours to construct the sea walls.

We have started reinforcing the revetment between the tennis courts and Southend Slipway. So far, we have completed half a dozen lower concrete pours. These works are being completed around the tides. On the Promenade, we have completed a 75m stretch of secondary stone flood wall from the Oyster House hotel up to the end of Promenade Terrace. We are currently working on the stone planters and seating areas in front of Prezzo, aiming to complete the work during the winter months 
when footfall is lower.  These works will continue for the next 3-4 weeks and are weather-dependent. While these works are being undertaken, there will be a localised pedestrian diversion past the Oyster House Hotel area. Signage and lights have been erected to ensure the safety of pedestrians. Cyclists are required to dismount through the diverted area.