About the project
The Havre Des Pas project covers the coastline from La Collette to La Grande Charrière Slipway.
This area is our highest priority because it's exposed to wave overtopping and rising sea levels. By the early 2040s, still‑water levels may threaten homes, businesses and public areas.
Currently, around 350 properties are at risk from a 1 in 200 year flood event. If sea levels continue to rise, this could increase to roughly 1,500 properties by 2120.
The project aims to:
- deliver long-term protection
- enhance public spaces
- respect heritage
- protect the natural environment
The project supports our
Shoreline Management Plan (SMP). This is a 100-year plan to protect our coastline and communities against flooding.
Design phases
The project follows an iterative design process:
- 2026 concept design: early designs based on the 2025 public consultation feedback
- 2027 detailed design: technical development, environmental assessments, and refined layout
- 2028 construction design: final drawings and specifications prepared for build
This iterative design process allows us to update and improve our designs based on:
- public feedback
- technical analysis
- environmental considerations
Planning application
The planning application is planned for Autumn 2027.
Construction is planned for 2029 to 2033, subject to approvals and funding.
Project design
We developed early visuals following our
2024 engagement workshops with residents, stakeholders, and technical experts.
Public feedback highlighted areas for us to focus on.
In Zones 3 and 4, people raised concerns about privacy and the amount of beach taken in the design. In response to this, we're looking into the following:
- lowering the public areas, including promenades and cycle paths in Zones 3 and 4
- bringing the new primary wall closer to the existing sea walls from Le Dicq rocks east to La Grande Charrière Slipway
- narrowing buffer zones between public areas and private gardens to reduce beach impact
- matching the height of the new sea wall heights in the eastern section to existing sea walls to preserve sea views
- setting the secondary walls at approximately 1.7 metres high to maintain the privacy of private gardens from the promenade
Early project ideas by zone
Zone 1: La Collette Gardens
We plan to:
- advance the line up to 40 metres of land to support construction activities
- landscape new coastal gardens, connecting the promenade existing green spaces
View zone 1 concept design
Zone 2: Havre des Pas Promenade West
We plan to:
- replace the existing sloped sea wall with a vertical wall, advance about 3 metres towards the sea
- create a new 15 metre wide public space
View zone 2 concept design
Zone 3: Havre des Pas Promenade East
We plan to:
- advance the sea wall around 12 metres
- at eastern end of zone where existing properties are present, narrow the footprint potential, lower the promenade and cycle path to enable a 1.7m high secondary wall for privacy
- link overall wall heights to existing walls to preserve sea views
View zone 3 concept design
Zone 4: La Grève d’Azette Beach
We plan to:
- advance the sea wall around 15 metres, a reduction of 5 metres on the scheme visuals presented
- investigate a narrower scheme, lower the promenade and cycle path to enable a 1.7m high secondary wall for privacy
View zone 4 concept design
Protecting our environment and heritage sites
The project area includes a Ramsar site, Sites of Special Interest (SSI), and over 30 listed buildings.
We have measures in place to protect these areas, including:
- Environmental Impact Assessments
- Construction Environmental Management Plan
- collaboration with the Directorate for the Environment, Ramsar (via DEFRA) and heritage specialists
- interpretation boards to highlight heritage and ecology
Public consultation information
Learn more about our 2025 public consultation:
We’ll publish a Public Consultation Report in January 2026 after the Christmas period to present the feedback received and explain how your comments will influence the next design stage.
Get project updates
In 2026, we will produce newsletters to provide updates on design, engagement, and construction planning.
You can sign up to receive newsletters by:
Email: coastal@gov.je
Writing to:
Coastal Engineering
Infrastructure & Environment
PO Box 412
Beresford House
Bellozanne Road
St Helier
JE4 8UY
gov.je