Master-planning and Urban Design
Our experienced multi-disciplinary team unlocks potential through sustainable, viable and deliverable placemaking that shapes thriving, resilient communities and vibrant places.
Every project we are involved in starts with understanding what success looks like for you. Whether you’re creating new neighbourhoods, promoting land, regenerating a town centre, or bringing forward a mixed-use development, our masterplanning and urban design team turns the vision into design that works.
We take time to understand your goals, your site, and your commercial drivers. That means every plan we create is grounded in evidence, viability and a strong sense of place. Our role is to bring insight and creativity to complex projects – helping you shape proposals that build confidence, unlock development value and win support.
Collaboration sits at the heart of how we work. We work in collaboration with our planners, architects, economists, and heritage experts, as well as with external consultants, local authorities and the client, to ensure a joined-up approach from the very beginning. The result is design that not only delivers high quality placemaking, but performs in planning, delivers on site, and creates lasting value and legacy for the communities it serves.
What we do
We’re architects who understand buildability, value and risk, staying involved from first sketch to completion to ensure what’s designed gets built, beautifully and efficiently.
Unlock opportunity and shape vision
Every great place starts with a strong foundation. We analyse the context – physical, policy, social and commercial – to shape a clear design vision rooted in place.
Unlock opportunity and shape vision
Every great place starts with a strong foundation. We analyse the context – physical, policy, social and commercial – to shape a clear design vision rooted in place.
Unlock opportunity and shape vision
Every great place starts with a strong foundation. We analyse the context – physical, policy, social and commercial – to shape a clear design vision rooted in place.
Unlock opportunity and shape vision
Every great place starts with a strong foundation. We analyse the context – physical, policy, social and commercial – to shape a clear design vision rooted in place.
Why clients choose us
Trusted advisers
Integrity and collaboration
Integrated expertise
Commercial insight
Creative clarity
Proven results
Quality and value
Strength in depth
Long-term impact
Working with Marrons means working with architects who understand the full development journey — not just the design. We anticipate challenges, adapt to constraints and help clients make informed, confident decisions that deliver beautiful, commercially successful and socially meaningful outcomes.
What we can deliver
We turn ideas into places. Our deliverables aren’t just plans – they are tools that unlock opportunity, drive value, and create vibrant places. From understanding a site’s potential to shaping masterplans that balance commercial, social, and environmental goals, we make complex decisions feel simple. Every output is designed to communicate, inspire, and guide, giving you clarity and confidence as your project takes shape.
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work with professionals
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Brian Mullin 1
Brian Mullin
Brian Mullin 2
Brian Mullin 3
Brian Mullin 4
Brian Mullin 5
Brian Mullin 6
Brian Mullin 7
Brian Mullin 1
Specialisms:
- Commercial Development
- Family Business
- Planning & Environmental
- Real Estate
As the head of Marrons, Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully navigate the planning system.
A chartered member of the Royal Town Planning Institute since 2007, Brian combines deep technical knowledge with strategic insight, developed through a BSc in Environmental Planning and two postgraduate diplomas in Environmental Planning and in Construction and Project Management, all from leading institutions in Belfast.
He began his career as a local government officer, before joining Marrons in 2008, where he played a key role in shaping the consultancy’s national presence and reputation.
Based in the Midlands, Brian is a planning policy expert, providing strategic and technical planning development advice to a broad range of clients. Working predominantly within the English planning regime, Brian works across a range of sectors in the development industry including residential, office, industrial, retail, education, renewable energy, telecommunications, heritage, urban regeneration and rural development, and leisure and tourism.
Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully negotiate the planning system. He takes a lead role in the assembly and management of multi-disciplinary teams who coordinate, prepare and submit planning applications. He also acts as expert witness at examinations, public inquiries and appeal hearings.
Brian Mullin
Specialisms:
- Commercial Development
- Family Business
- Planning & Environmental
- Real Estate
As the head of Marrons, Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully navigate the planning system.
A chartered member of the Royal Town Planning Institute since 2007, Brian combines deep technical knowledge with strategic insight, developed through a BSc in Environmental Planning and two postgraduate diplomas in Environmental Planning and in Construction and Project Management, all from leading institutions in Belfast.
He began his career as a local government officer, before joining Marrons in 2008, where he played a key role in shaping the consultancy’s national presence and reputation.
Based in the Midlands, Brian is a planning policy expert, providing strategic and technical planning development advice to a broad range of clients. Working predominantly within the English planning regime, Brian works across a range of sectors in the development industry including residential, office, industrial, retail, education, renewable energy, telecommunications, heritage, urban regeneration and rural development, and leisure and tourism.
Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully negotiate the planning system. He takes a lead role in the assembly and management of multi-disciplinary teams who coordinate, prepare and submit planning applications. He also acts as expert witness at examinations, public inquiries and appeal hearings.
Brian Mullin 2
Specialisms:
- Commercial Development
- Family Business
- Planning & Environmental
- Real Estate
As the head of Marrons, Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully navigate the planning system.
A chartered member of the Royal Town Planning Institute since 2007, Brian combines deep technical knowledge with strategic insight, developed through a BSc in Environmental Planning and two postgraduate diplomas in Environmental Planning and in Construction and Project Management, all from leading institutions in Belfast.
He began his career as a local government officer, before joining Marrons in 2008, where he played a key role in shaping the consultancy’s national presence and reputation.
Based in the Midlands, Brian is a planning policy expert, providing strategic and technical planning development advice to a broad range of clients. Working predominantly within the English planning regime, Brian works across a range of sectors in the development industry including residential, office, industrial, retail, education, renewable energy, telecommunications, heritage, urban regeneration and rural development, and leisure and tourism.
Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully negotiate the planning system. He takes a lead role in the assembly and management of multi-disciplinary teams who coordinate, prepare and submit planning applications. He also acts as expert witness at examinations, public inquiries and appeal hearings.
Brian Mullin 3
Specialisms:
- Commercial Development
- Family Business
- Planning & Environmental
- Real Estate
As the head of Marrons, Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully navigate the planning system.
A chartered member of the Royal Town Planning Institute since 2007, Brian combines deep technical knowledge with strategic insight, developed through a BSc in Environmental Planning and two postgraduate diplomas in Environmental Planning and in Construction and Project Management, all from leading institutions in Belfast.
He began his career as a local government officer, before joining Marrons in 2008, where he played a key role in shaping the consultancy’s national presence and reputation.
Based in the Midlands, Brian is a planning policy expert, providing strategic and technical planning development advice to a broad range of clients. Working predominantly within the English planning regime, Brian works across a range of sectors in the development industry including residential, office, industrial, retail, education, renewable energy, telecommunications, heritage, urban regeneration and rural development, and leisure and tourism.
Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully negotiate the planning system. He takes a lead role in the assembly and management of multi-disciplinary teams who coordinate, prepare and submit planning applications. He also acts as expert witness at examinations, public inquiries and appeal hearings.
Brian Mullin 4
Specialisms:
- Commercial Development
- Family Business
- Planning & Environmental
- Real Estate
As the head of Marrons, Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully navigate the planning system.
A chartered member of the Royal Town Planning Institute since 2007, Brian combines deep technical knowledge with strategic insight, developed through a BSc in Environmental Planning and two postgraduate diplomas in Environmental Planning and in Construction and Project Management, all from leading institutions in Belfast.
He began his career as a local government officer, before joining Marrons in 2008, where he played a key role in shaping the consultancy’s national presence and reputation.
Based in the Midlands, Brian is a planning policy expert, providing strategic and technical planning development advice to a broad range of clients. Working predominantly within the English planning regime, Brian works across a range of sectors in the development industry including residential, office, industrial, retail, education, renewable energy, telecommunications, heritage, urban regeneration and rural development, and leisure and tourism.
Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully negotiate the planning system. He takes a lead role in the assembly and management of multi-disciplinary teams who coordinate, prepare and submit planning applications. He also acts as expert witness at examinations, public inquiries and appeal hearings.
Brian Mullin 5
Specialisms:
- Commercial Development
- Family Business
- Planning & Environmental
- Real Estate
As the head of Marrons, Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully navigate the planning system.
A chartered member of the Royal Town Planning Institute since 2007, Brian combines deep technical knowledge with strategic insight, developed through a BSc in Environmental Planning and two postgraduate diplomas in Environmental Planning and in Construction and Project Management, all from leading institutions in Belfast.
He began his career as a local government officer, before joining Marrons in 2008, where he played a key role in shaping the consultancy’s national presence and reputation.
Based in the Midlands, Brian is a planning policy expert, providing strategic and technical planning development advice to a broad range of clients. Working predominantly within the English planning regime, Brian works across a range of sectors in the development industry including residential, office, industrial, retail, education, renewable energy, telecommunications, heritage, urban regeneration and rural development, and leisure and tourism.
Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully negotiate the planning system. He takes a lead role in the assembly and management of multi-disciplinary teams who coordinate, prepare and submit planning applications. He also acts as expert witness at examinations, public inquiries and appeal hearings.
Brian Mullin 6
Specialisms:
- Commercial Development
- Family Business
- Planning & Environmental
- Real Estate
As the head of Marrons, Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully navigate the planning system.
A chartered member of the Royal Town Planning Institute since 2007, Brian combines deep technical knowledge with strategic insight, developed through a BSc in Environmental Planning and two postgraduate diplomas in Environmental Planning and in Construction and Project Management, all from leading institutions in Belfast.
He began his career as a local government officer, before joining Marrons in 2008, where he played a key role in shaping the consultancy’s national presence and reputation.
Based in the Midlands, Brian is a planning policy expert, providing strategic and technical planning development advice to a broad range of clients. Working predominantly within the English planning regime, Brian works across a range of sectors in the development industry including residential, office, industrial, retail, education, renewable energy, telecommunications, heritage, urban regeneration and rural development, and leisure and tourism.
Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully negotiate the planning system. He takes a lead role in the assembly and management of multi-disciplinary teams who coordinate, prepare and submit planning applications. He also acts as expert witness at examinations, public inquiries and appeal hearings.
Brian Mullin 7
Specialisms:
- Commercial Development
- Family Business
- Planning & Environmental
- Real Estate
As the head of Marrons, Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully navigate the planning system.
A chartered member of the Royal Town Planning Institute since 2007, Brian combines deep technical knowledge with strategic insight, developed through a BSc in Environmental Planning and two postgraduate diplomas in Environmental Planning and in Construction and Project Management, all from leading institutions in Belfast.
He began his career as a local government officer, before joining Marrons in 2008, where he played a key role in shaping the consultancy’s national presence and reputation.
Based in the Midlands, Brian is a planning policy expert, providing strategic and technical planning development advice to a broad range of clients. Working predominantly within the English planning regime, Brian works across a range of sectors in the development industry including residential, office, industrial, retail, education, renewable energy, telecommunications, heritage, urban regeneration and rural development, and leisure and tourism.
Brian is a highly experienced and nationally recognised town planning expert, helping clients successfully negotiate the planning system. He takes a lead role in the assembly and management of multi-disciplinary teams who coordinate, prepare and submit planning applications. He also acts as expert witness at examinations, public inquiries and appeal hearings.
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