What We Do
At Coster Associates, we provide a comprehensive range of architectural services for residential and commercial projects. Whether you’re planning a home extension or a large-scale development, our experienced team ensures your project is completed with precision, compliance, and creativity.
Residential
Extensions
Residential - Extensions
Whether you need more living space or want to improve functionality, a home extension can transform your property. We offer tailored scheme designs to seamlessly integrate the extension with your existing structure, maximising natural light and space.
Key considerations include:
•Available space and layout
•Structural integrity
•Planning permission requirements
•Neighbour impact
•Budget and timeline
We manage the entire process, from planning approvals to detailed construction drawings, ensuring compliance with building regulations and handling contractor tenders for a smooth build.
Conversions
Residential - Conversions
Transforming an unused space, such as a loft or garage, into a functional living area adds value and versatility to your home. Our conversion designs prioritise efficient use of space while meeting all compliance and safety standards.
Considerations include:
•Structural changes
•Lighting and ventilation
•Fire safety regulations
•Energy efficiency
•Planning requirements
We take care of planning applications, develop detailed construction documents, and manage the tendering process to ensure a cost-effective and high-quality conversion.
Home Remodelling
Residential - Home Remodelling
A full home remodel can modernise your living space, improve flow, and enhance overall functionality. We provide bespoke designs that blend aesthetic appeal with practicality. Important factors are:
• Existing structural layout
• Modern design trends
• Energy-efficient materials
• Budget constraints
• Compliance with local building regulations
From initial designs to construction plans and contractor selection, we ensure your remodel is delivered on time and within budget, with all necessary approvals secured.
New Home Development
Residential - New Home Development
Designing and building a new home from scratch allows you to bring your dream home to life. Our architects work closely with you to create a scheme that reflects your vision while meeting all planning and compliance regulations.
Key considerations include:
•Land suitability and permissions
•Sustainable design features
•Budget management
•Energy performance standards
•Timeline for each phase
We handle planning submissions, prepare detailed construction drawings, and oversee the tendering process to bring your vision to reality, ensuring quality and compliance throughout.
Commercial
Office & Retail
Office & Retail - Commercial
Whether it’s a modern office space or a retail premises, our commercial designs focus on functionality, efficiency, and aesthetic appeal.
Key considerations include:
• Business needs and space utilisation
• Accessibility and safety compliance
• Layout for customer engagement or employee productivity
• Energy-efficient systems
• Branding and design continuity
We ensure compliance with building regulations, manage construction documents, and oversee the tendering process for contractors to deliver your project on time and on budget.
Industrial & Agricultural
Industrial & Agricultural - Commercial
From factories to farm buildings, we specialise in designing robust and functional industrial and agricultural structures.
Key considerations are:
• Space and workflow optimisation
• Structural durability and material selection
• Energy efficiency and sustainability
• Compliance with health and safety regulations
• Future expansion potential
We handle planning permissions, develop precise construction documents, and oversee tendering to ensure that your project meets all regulatory standards and is built to last.
Medical & Care Facilities
Medical & Care Facilities - Commercial
Designing medical and care facilities requires a focus on functionality, safety, and patient well-being. Our tailored designs meet these needs while adhering to all regulatory standards.
Considerations include:
• Specialised equipment and space needs
• Accessibility and compliance with healthcare regulations
• Infection control and hygiene
• Efficient use of space for patient flow
• Long-term adaptability of the building
We manage planning applications, ensure compliance with healthcare building codes, and oversee the construction process to ensure the facility is built to meet exacting standards.
Community & Educational
Community & Educational - Commercial
For community centres, village halls, schools, or other educational facilities, we design spaces that foster learning and collaboration. Our scheme designs focus on practicality and sustainability.
Key factors include:
• Space for various activities
• Accessibility and inclusivity
• Sustainability and energy efficiency
• Compliance with educational standards and regulations
• Safety and security features
We handle planning, detailed design, and construction management, ensuring the project meets the needs of the community and complies with all relevant regulations.
Change Of Use (Including Conversions & Refurbs)
Change Of Use - Commercial
Repurposing existing commercial buildings for new uses, or refurbishing them to modern standards, requires expert planning and design.
Key considerations include:
• Structural changes for new purposes
• Compliance with updated regulations
• Energy performance upgrades
• Budget and cost management
• Timelines for phased refurbishment
We navigate the planning process, manage design and construction, and ensure a smooth transition to a new use, whether converting retail spaces to offices or transforming industrial buildings for new purposes.
Scheme Design
Crafting creative and functional designs tailored to your vision.
Planning & Compliance
Ensuring your project meets all legal and regulatory requirements.
Development for Construction
Preparing detailed plans and specifications for smooth construction execution.
Tendering & Administration
Managing contractor selection, bids, and project oversight with precision.
Why Work With Us
Tailored
Solutions
Customised architectural designs to meet each client’s unique needs and vision.
Comprehensive
Services
From concept to construction, we handle every stage of the architectural process.
50+ Years of
Expertise
Proven experience delivering successful projects across residential and commercial sectors.
Professional
Guidance
Guiding you through the necessary bureaucracy & liaising with Specialist Consultants where necessary.
FAQ's
Do I need to secure planning permission before starting my project?
Yes, most new builds and significant renovations require planning permission. We can help assess whether your project needs approval and handle the application process to ensure your plans comply with local regulations.
How long does the planning approval process typically take?
The planning approval process usually takes 8 to 12 weeks, depending on the complexity of the project and the local authority’s regulations. However, delays can occur if additional information or adjustments are required. We work closely with planning authorities to ensure a smooth approval process.
How involved will I be in the design process?
We encourage active client involvement throughout the design process. Your input is crucial to ensuring the final design reflects your vision and needs. We will consult with you at key stages to review progress, make decisions, and ensure everything aligns with your expectations.
What should I consider when selecting materials for my new home?
When choosing materials, it’s essential to consider durability, sustainability, aesthetic appeal, and cost. We help you balance these factors, recommending materials that fit your vision and budget while ensuring energy efficiency and long-term performance.
How Can We Help You?
At Coster Associates, we understand that every project is unique.
That's why we work closely with our clients to deliver personalised solutions, no matter the size or scope of the project.
Our team ensures that your goals are met while navigating the increasingly complex regulatory environment with ease.
Free Consultation
Reach out to our expert team to discuss your architectural project.
Residential Services
See how we’ve transformed countless homes across Sussex.
Commercial Services
Explore how we’ve enhanced businesses across Sussex.