Montgomery Irwin Architects

What Montgomery Irwin Architects does

Montgomery Irwin Architects is a chartered architecture and design practice headquartered in Coleraine, Northern Ireland, operating as a private limited company since at least the early 2000s. The firm delivers architecture, interior design, and technical design services across two primary service categories: 'Places for Living' (residential architecture including bespoke homes, apartments, extensions, and coastal residences) and 'Creative Workplaces' (commercial architecture covering retail, hospitality, leisure, medical/dental surgery design, and office fit-out). The practice is led by two directors, Graeme Montgomery and Alan Irwin, who together hold over 40 years of combined experience and are chartered members of RIBA and CIAT. The broader team includes a Chartered Architectural Technologist, architects, architectural designers, and architectural assistants.

The firm's core technical competencies are concentrated in coastal design (high-performance glazing, insulation, and air tightness for harsh marine environments), heritage conservation (including Grade B+ listed Georgian properties, UNESCO World Heritage Sites, dry-rot treatment, and lime-render repairs), and sustainable design (integration of solar panels, ground/air source heat pumps, MVHR systems, and high-performance insulation). Notable flagship projects include Royal Portrush Golf Club clubhouse remodelling for The Open 2019, multiple McAtamney's Butchers store remodellings across Northern Ireland with documented turnover increases, six Lynas Food Outlets, and the firm's role in Project Kelvin (securing planning permissions for Hibernia Atlantic's submarine cable infrastructure).

Revenue is generated through professional service fees on a project-by-project basis, with services spanning the full project lifecycle from feasibility studies and measured surveys through planning applications, technical design, tender procedures, contract administration, and interior design. The firm serves both residential homeowners and commercial clients across Northern Ireland, the Republic of Ireland, and the wider UK, with at least one project in Kenya. Marketing relies on a portfolio-driven website, Twitter and Instagram social channels, a project journal/blog, industry publication features (Premier Hospitality Magazine, Ulster Tatler Interiors, CIAT AT Journal, RSUA publications), and community engagement including an annual 'Ask An Architect' charitable initiative and local sports sponsorship. The firm does not engage in venture funding, M&A, or geographic expansion at scale, and operates as a stable, regionally anchored professional practice.

Name

Montgomery Irwin Architects

Legal name

Montgomery Irwin Architects Ltd.

Website

https://mi-architects.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Montgomery Irwin Architects is a chartered architecture practice in Coleraine, Northern Ireland, delivering residential, commercial, heritage conservation, and coastal design services to homeowners and businesses across the UK and Ireland.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (541310), Interior Design Services (541410)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

Keywords

• Architectural design services
• Heritage conservation architecture
• Coastal architecture design
• Commercial fit-out design
• Residential architecture services

Headquarters

HQ city

Coleraine

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Architectural Design Services: Professional architecture and design services delivered on a project-by-project basis. Services include feasibility studies, measured surveys, pre-planning consultancy, innovative sketch design, detail technical design, tender procedures, contract administration, and interior design. Revenue is generated through professional service fees for residential and commercial projects.

Distribution channels2 records

Marketing channels6 records

Core offering

Montgomery Irwin Architects provides full-service architecture, interior design, and technical design services across the full project lifecycle from feasibility studies and planning through to technical design, contract administration, and interior fit-out. The firm specialises in coastal design, heritage conservation, and contemporary residential and commercial architecture, serving clients across Northern Ireland, the UK, and Ireland.

Product overview

Montgomery Irwin Architects is a chartered architecture practice offering two primary service categories: Places for Living (residential architecture including bespoke homes, apartment design, residential developments, and house extensions) and Creative Workplaces (commercial architecture including office, retail, hospitality, leisure, medical and dental surgery design, interior fit-out, and commercial fit-out). Their comprehensive service offering spans the full project lifecycle from feasibility studies through to contract administration. They are particularly recognised for their coastal design expertise along the North Coast of Ireland. The practice is led by Directors Graeme Montgomery and Alan Irwin with over 40 years of combined experience.

Differentiator

Problem solved

Functional benefit

Products and services

• Creative Workplaces Commercial architecture services including office, retail, hospitality, leisure, medical and dental surgery design, interior fit-out, commercial projects, and worship spaces, targeted at business clients seeking to enhance customer experience, brand image, and operational efficiency.
• Places for Living Residential architecture services including bespoke homes, apartment design, residential developments, and house extensions across the North Coast of Ireland, targeted at private homeowners seeking high-quality design and energy-efficient homes.
• Architectural Design Services Full-service architecture and design including feasibility studies, measured surveys, pre-planning consultancy, condition appraisals, sketch design, 3D visualisation, listed building consent, technical design, tender procedures, contract administration, interior design, commercial fit-out design, health and safety coordination, and expert witness services.
• Coastal Design Specialisation Specialised architectural design services for coastal living and working environments, with extensive experience designing properties along the North Coast and Causeway Coast areas, including high-performance glazing systems, insulation, and air tightness solutions for harsh marine environments.
• Heritage Conservation Architecture Conservation-led approach for historic buildings including Georgian properties, listed buildings, and structures within UNESCO World Heritage Sites, with expertise in dry-rot treatment, lime-render repairs, and minimal intervention techniques.

Quantifiable outcome

• McAtamney's reported significant increase in turnover following store remodellings
• +5 more outcomes

Named customers22 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Three partnerships are on record, tiered core.

• Hibernia AtlanticcoreStrategic or Co-development PartnerMontgomery Irwin Architects was extensively involved in Project Kelvin, a major submarine and terrestrial cable deployment connecting Northern Ireland to North America. The firm secured planning permissions for the cable landing station and numerous POPs around Northern Ireland, enabling Hibernia Atlantic to extend their network to global players including New York Stock Exchange, Tibus, Novosco, and Amazon.
• Pioneer Log Homes (British Columbia, Canada)coreStrategic or Co-development PartnerCollaboration on Aurora North Coast project, featuring twin Western Red Cedar log cabins near Bushmills—the first of their kind in Ireland. Pioneer provided hand-selected logs from British Columbia, and master joiners traveled to erect the structures. Montgomery Irwin developed bespoke details to comply with Northern Ireland regulations while accommodating the unique construction method (log shrinking of approximately 100mm over initial years).
• Project Kelvin ConsortiumcoreStrategic or Co-development PartnerMajor infrastructure project involving submarine cable deployment directly connecting Northern Ireland to North America. Montgomery Irwin secured planning permission to bring the submarine cable ashore within a designated 'Area of Special Scientific Interest', and obtained planning for the cable landing station and numerous POPs around Northern Ireland against exacting time constraints.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Bucholz McEvoy Architects: Irish architecture practice recognised for contextual, sustainable and heritage-sensitive design across residential and institutional projects—comparable on design philosophy and project types.
• Todd Architects: Belfast/Northern Ireland architecture firm of similar size delivering residential, commercial, healthcare and education projects—comparable across sectors and geography.
• Hall McKnight Architects: Northern Ireland/UK-based architecture practice of comparable size with strong heritage, conservation and coastal/infrastructure work, including recognised UNESCO-related commissions—directly comparable in scale, geography and specialisation.
• Consarc Conservation Group: Specialist conservation architecture practice with deep heritage credentials across the UK and Ireland, including listed building and traditional fabric repair—closely comparable on the heritage/conservation axis of Montgomery Irwin's work.
• McGonigle McGrath Architects: Award-winning Northern Ireland/Irish architecture practice working across residential, commercial and heritage projects with comparable scale and design-led positioning in the same regional market.

Broad incumbents

• Scott Tallon Walker Architects: One of Ireland's longest-established architectural practices with a broad portfolio across commercial, healthcare and heritage work—comparable on services but materially larger in scale and geographic reach.

Regional players

• Isherwood + Ellis: Smaller Northern Ireland architecture practice serving residential and commercial clients in overlapping geographies—a local competitor at a similar size band.
• RPP Architects: Northern Ireland architecture firm covering residential, commercial and conservation briefs in the same regional market, providing a directly comparable local peer set.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/Mont_Irwin_Arch
• Instagraminstagram.com/montgomeryirwinarchitects
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/montgomery-irwin-architects

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Montgomery Irwin Architects