Projects
Sectors
At Rejen Architects, we believe in the power of architecture to transform places and bring stories to life. We specialise in adaptive reuse, low-carbon design, and context-led new-builds across hospitality, residential, workplace, and healthcare sectors. Our work spans urban and rural locations across the UK and Ireland — from listed building conversions to innovative developments. Every project reflects our expertise in unlocking value, navigating complex constraints, and delivering vibrant, sustainable environments that uplift users and support long-term commercial success
All Projects
Hotel & Hospitality
Boutique hotel owners, operators, and developers face growing pressure to create standout experiences while navigating tight sites, heritage constraints, and rising sustainability standards. Rejen Architects specialises in repurposing historic buildings, extending heritage hotels, and designing bold new hospitality venues — all with a sharp commercial focus. Our phased delivery strategies and use of low-carbon technologies help reduce risk, control cost, and maximise long-term value. From castle conversions to modular rooftop extensions, we balance guest experience, operational efficiency, and planning sensitivity to deliver high-performing hospitality architecture.
Private Homes
Rejen Architects creates exceptional private homes that respond to context, character, and lifestyle. Our residential work includes renovations and extensions of period houses, new-builds in rural or conservation settings, and sustainable homes in historic contexts. We blend contemporary design with a deep understanding of place and craft — shaping homes that reflect how clients want to live, now and in the future. Whether reimagining a listed building or designing a new rural dwelling, we deliver personal, timeless homes with lasting value.
Conservation
As accredited Conservation Architects, Rejen offers expert guidance in preserving and revitalising heritage buildings. We specialise in adaptive reuse and sensitive interventions that respect each structure’s historical and cultural significance while adapting it for contemporary use. From listed landmarks to heritage assets, our designs ensure compliance with planning regulations while delivering innovative solutions that honour the past and embrace the future. By combining deep respect for history with modern ingenuity, we help clients breathe new life into historic spaces, creating buildings that are both enduring and transformative.
Workplace & Office
Today’s workplaces must support hybrid working, wellbeing, and sustainability goals. Rejen Architects helps clients redevelop outdated offices, retrofit heritage properties, and create flexible, future-ready environments. Our expertise lies in transforming existing buildings — often in urban or protected contexts — into vibrant spaces that promote productivity and meet ESG standards. We embed energy-efficient design, biophilic principles, and smart space planning to attract tenants and reduce operational costs. From Belfast retrofits to large-scale adaptive reuse, we unlock value in every square metre.
Residential
Developers and property owners face complex challenges in delivering sustainable, high-quality homes — especially when repurposing historic buildings or developing in sensitive settings. Rejen Architects specialises in adaptive reuse, retrofit, and new-build housing that balances design quality, sustainability, and commercial return. We work with developers, estate owners, and homeowners to navigate planning, conservation, and community issues. From listed conversions to rural homes, every project is tailored to people and place — combining smart layouts, energy-efficient systems, and enduring design to create homes that perform.
Healthcare
Hospitals and healthcare providers must modernise while staying operational — often in complex, live clinical environments. Rejen Architects delivers healthcare refurbishments, modular theatres, and retrofit solutions with minimal disruption. We understand the technical, operational, and human needs of healthcare design. From radiology upgrades to energy infrastructure projects, we collaborate with clinical teams and engineers to ensure compliance, patient safety, and long-term value. Our work spans public and private sectors across Ireland and the UK — always prioritising quality care and future adaptability.
Other
Beyond our core sectors, Rejen Architects delivers high-quality design across cultural, community, light industrial, infrastructure, and energy projects. We bring the same design rigour and sustainability focus — especially when repurposing underused assets or working in heritage or environmentally sensitive contexts. Our strength lies in resolving complex constraints through collaboration and creative problem-solving. From unique one-offs to multi-stakeholder schemes, we approach every project with a commitment to unlocking opportunity, improving outcomes, and delivering long-term architectural value.
