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Bespoke Architecture & Sustainable Design Solutions
Founded by Andrew Coulter and Barry Gallagher, ACA Architects brings over 60 years of combined experience in creating timeless, innovative architecture. Our practice focuses on blending traditional design values with modern sustainable technology to deliver bespoke solutions for residential and commercial projects across the UK. We specialise in maximising spatial potential while respecting built heritage and environmental considerations. Our hands-on approach ensures client ambitions are met through collaborative planning and meticulous attention to detail. With a portfolio spanning Central London to Cheshire, we maintain strong relationships throughout every project phase.

Sustainability is central to our ethos, integrating energy-efficient practices without compromising aesthetic quality. Our team prioritises craftsmanship and innovation, addressing complex challenges with practical, future-focused designs. We are committed to advancing architectural solutions that balance ecological responsibility with functional excellence. Our work reflects a dedication to evolving traditional principles for contemporary needs while maintaining enduring quality.
Services
Architectural Design Residential Developments Heritage Restoration Sustainable Architecture Commercial Projects Space Optimisation Project Management Bespoke Solutions
Highlights and features
  • We offer 60+ years combined experience in heritage-sensitive architectural design
  • Our team specialises in integrating sustainable technology with traditional aesthetics
  • We provide hands-on project management from concept to completion
  • Our portfolio spans complex developments across London and the UK
  • We maintain ISO 9001 certified quality management systems
Services
Architectural Design
Our architectural design service creates bespoke solutions that harmonise traditional aesthetics with modern functionality. We specialise in crafting spaces that respect heritage while incorporating sustainable technologies. With meticulous attention to detail, we transform client visions into innovative built environments that enhance quality of life.
Heritage Restoration
Specialising in heritage-sensitive projects, we restore historic buildings while integrating contemporary requirements. Our approach preserves architectural integrity through traditional craftsmanship combined with modern sustainability practices. We navigate complex planning regulations to ensure historically significant structures remain functional for future generations.
Sustainable Architecture
We embed sustainability at every design stage, creating energy-efficient buildings that minimise environmental impact. Our expertise includes passive design strategies, renewable energy integration and eco-friendly material selection. This approach delivers spaces that balance ecological responsibility with aesthetic quality and long-term cost efficiency.
People
Andrew Coulter
Principal Architect
With over 30 years' experience, Andrew Coulter specialises in blending traditional architectural values with modern sustainable solutions. His expertise in heritage projects ensures timeless designs that meet contemporary needs while maintaining historical integrity.
Barry Gallagher
Principal Architect
Barry Gallagher brings extensive sustainable design expertise, particularly in social housing and residential projects. As a champion of eco-conscious architecture, he develops innovative solutions that combine environmental responsibility with functional excellence across diverse building typologies.
Questions
What architectural styles does ACA specialise in?
We specialise in harmonising traditional architectural styles with contemporary sustainable design principles, creating timeless solutions that respect heritage while embracing modern functionality.
Do you handle listed building projects?
Yes, we have extensive experience working with Grade 2* listed buildings and other heritage structures, navigating complex conservation requirements while implementing modern upgrades.
How do you incorporate sustainability into designs?
We integrate passive design strategies, renewable energy systems and eco-friendly materials throughout every project phase to create energy-efficient buildings with minimal environmental impact.
What areas do you cover?
While based in London, we undertake projects across the UK including recent developments in Cheshire and Central London's St John's Wood district.
Can you manage full project lifecycles?
Yes, we provide comprehensive architectural services from initial concept development through to project completion, maintaining continuous client collaboration throughout the process.