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Managing Coastal Builds:
Unique Challenges and Solutions

Building in coastal areas comes with its own set of challenges and rewards.

 

Coastal locations offer breathtaking views and the allure of proximity to the sea, but these projects require specialised planning, innovative solutions, and a keen understanding of environmental and logistical demands. Here, we explore the unique challenges of coastal builds and the strategies used to overcome them.

 

Environmental Challenges
 

1. Exposure to Harsh Weather Conditions
 

Coastal areas are frequently subjected to strong winds, heavy rainfall, and high levels of salt in the air. These conditions accelerate wear and tear on materials, leading to corrosion, rot, and structural degradation over time.

Solution:

  • Use materials specifically designed to withstand salt exposure, such as marine-grade stainless steel, treated timber, and corrosion-resistant coatings.

  • Incorporate wind-resistant designs, such as aerodynamic rooflines and reinforced windows.

  • Schedule regular maintenance to prolong the lifespan of the structure.

  • The use of robust weather proofing materials, such as EDPM tapes and single ply roofing membranes.
     

2. Flooding and Rising Sea Levels
 

Coastal builds are often at risk of flooding, particularly during storms or high tides. Climate change has also increased the threat of rising sea levels, putting additional pressure on coastal infrastructure.

Solution:

  • Elevate structures using stilts or raised foundations to protect against floodwaters.

  • Implement drainage systems to manage water runoff effectively.

  • Use permeable surfaces for landscaping to reduce the impact of heavy rainfall.
     

3. Environmental Regulations
 

Coastal zones are subject to stringent environmental regulations aimed at protecting marine ecosystems, wildlife habitats, and natural landscapes.

Solution:

  • Conduct thorough environmental impact assessments (EIAs) before beginning construction.

  • Work closely with local authorities and environmental consultants to ensure compliance with regulations.

  • Use sustainable building practices, such as minimising waste and sourcing eco-friendly materials.

Logistical Challenges
 

1. Accessibility
 

Remote coastal locations often have limited road access, making it challenging to transport materials, equipment, and workers to the site.

Solution:

  • Plan deliveries carefully to avoid delays and optimize transportation routes.

  • Use modular construction techniques, which allow large sections of the building to be pre-fabricated off-site and assembled on-site.

  • Invest in specialised equipment for accessing difficult terrain, such as amphibious vehicles or barges.
     

2. Limited Utilities
 

Coastal sites may lack reliable access to utilities like electricity, water, and internet, complicating construction efforts.

Solution:

  • Utilise portable generators, water tanks, and satellite internet during the construction phase.

  • Work with utility providers early in the planning process to establish connections where possible.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Design Considerations
 

1. Blending with the Natural Landscape
 

Coastal builds often need to harmonise with their surroundings to meet aesthetic and regulatory requirements.

Solution:

  • Use natural materials like stone and wood to complement the environment.

  • Design structures to blend seamlessly with the landscape, minimising visual impact.

  • Consider local architectural styles to create a sense of harmony with the community.
     

2. Foundation Considerations
 

When building on a beach or in an area with a high water table, key foundation designs need to be:

Solution:

  • Deep Foundations – Pile foundations (driven, screw, or helical) to anchor the structure to stable ground below shifting or saturated soil.

  • Erosion and Flood Resistance – Elevated designs, reinforced seawalls, or flood-resistant materials to withstand coastal conditions.

  • Drainage and Waterproofing – Effective drainage systems and waterproof coatings to mitigate water ingress and hydrostatic pressure.
     

3. Maximizing Views While Ensuring Privacy
 

Homeowners often want expansive views of the sea while maintaining their privacy from neighbouring properties or public spaces.

Solution:

  • Incorporate large windows, balconies, and terraces to take advantage of ocean views.

  • Use landscaping, screens, or strategic positioning to enhance privacy without obstructing views.
     

4. Energy Efficiency
 

Coastal locations can benefit from natural resources like sunlight and wind, but energy-efficient designs are essential to reduce long-term costs and environmental impact.

Solution:

  • Install solar panels and wind turbines to harness renewable energy.

  • Use insulation and high-performance windows to regulate indoor temperatures.

  • Optimise building orientation to maximize natural light and ventilation.

  • Use glass finishes which prevent over heating, but maintain a controlled interior temperature, such as solar-reflective glass.
     

Case Study: Lessons from Coastal Projects
 

One example of successfully managing a coastal build is the construction of a lifeguard tower at West Wittering Beach. This project faced multiple challenges, including exposure to high winds, strict environmental regulations, and logistical constraints. By using durable, weather-resistant materials and collaborating closely with local authorities, the team delivered a structure that was both functional and aesthetically pleasing. Modular construction techniques reduced on-site labour and minimised disruption to the surrounding environment, highlighting the importance of innovation and planning in coastal builds.

 

The Importance of Collaboration
 

Building in coastal areas requires collaboration between architects, engineers, environmental consultants, and local authorities. Early engagement with stakeholders ensures that potential challenges are identified and addressed during the planning phase, reducing delays and unforeseen costs.

Looking to the Future
 

As climate change continues to impact coastal regions, the construction industry must prioritise resilience and sustainability in its designs. Emerging technologies, such as advanced weather forecasting tools and eco-friendly materials, offer new opportunities to address the unique challenges of coastal builds.

 

​​​By adopting innovative solutions and maintaining a commitment to sustainability, builders can create structures that not only stand the test of time but also enhance the natural beauty of coastal areas.

​Date: 10th February 2025

Author: Jonathan Brown

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King and Drury Construction

Unit 3 West Barn, Old Dairy Lane, Norton, Chichester, West Sussex. PO20 3AF
Tel: 01243 839741 info@kinganddrury.com

Registered company number: 8348049

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