Ratonga
Services

Bringing together experts in architecture, Building services solutions, lighting design, and building performance, we offer an integrated design approach that delivers efficient, future-focused solutions tailored to your needs.

Architecture

About

Considered design that responds to people, place, and purpose.


Stephenson & Turner's architecture team delivers innovative, community-driven design solutions that blend creativity, durability, and functionality. We collaborate closely with clients to shape spaces that are not only beautiful but also serve long-term needs, from initial concept to completion.


As a New Zealand architecture practice with over a century of heritage, we specialise in designing built environments that reflect local identity and respond to context, whether for education, civic, commercial, residential, cultural or public projects. Our approach is underpinned by respect for Te Ao Māori, sustainability, and the belief that good design should elevate communities.

Services

  • Interior Architecture
  • Future-focused educational architecture
  • Commercial building design
  • Cultural and heritage architecture restoration
  • Innovative residential architecture
  • Passive House and sustainable design solutions
  • Weathertightness remediation and façade upgrades
  • Adaptive reuse and building repurposing
  • Interior architecture and spatial planning
  • Feasibility studies and concept design
  • Specialist design for community and sports facility architecture

Our Process

Every architecture project starts with listening — understanding your vision, the whenua, and the kaupapa of the site. From there, we co-design tailored, cost-effective solutions that align with your goals, enhance functionality, and deliver lasting impact.

See our comprehensive portfolio of Projects and Awards

Team leaders

Delisa Lovie
Principal

Pip Julian
Principal

Richard George
Principal

Engineering

About

Our award-winning engineering team brings creative, science-based thinking to every project — designing systems that support how buildings perform, feel, and function over time.


We work at the intersection of efficiency, comfort, and aesthetic integrity, delivering smart, future-ready solutions that are seamlessly integrated into the overall design. Our engineers collaborate closely with our in-house architecture, lighting, and sustainability teams, providing a unified, holistic outcome for every project.


Whether it’s a school, civic centre, healthcare facility or commercial development, we design practical, high-performance buildings that meet the demands of today while anticipating tomorrow’s challenges.

Services

See our comprehensive portfolio of Projects and Awards

Team leaders

Tony Sanderson
Principal

Glen Wright
Principal

Lighting

About

Stephenson & Turner Lighting brings together a group of experienced, award-winning lighting designers who are passionate about creating impactful lighting environments.


With years of collective experience, our team excels across a diverse range of projects, including sports facilities, stadiums, retail, office, residential, education, healthcare, and urban spaces. We specialise in visual comfort, circadian cycles, focus, and materials—designing each project to strike the right balance of functionality and aesthetics. Our designs are meticulously calculated to manage glare ratings, power loads, and lux levels.


Our approach is both emotional and precise. We design lighting that enhances the experience of the space while delivering technical excellence.

Services

  • Sports Field Lighting - Tailored lighting designs for sports fields and stadiums, providing optimal visibility and safety for athletes and spectators.
  • Urban Space Lighting - Creating dynamic and functional lighting for urban spaces—from plazas to streets—to elevate aesthetics and support safety.
  • Pathway lighting - Designing safe, visually appealing lighting solutions for pathways, walkways, and public areas.
  • Functional, aesthetic and safety lighting - Balancing practicality with design, delivering lighting that is safe, comfortable, and visually engaging.
  • Commercial Lighting - Providing innovative solutions for commercial environments, including office buildings and retail spaces.
  • Lighting controls systems - Implementing advanced systems that enhance energy efficiency and allow flexible lighting control.
  • Resource Management Act - Designing lighting solutions that meet all applicable legal and environmental requirements under the Resource Management Act.
  • Emergency Lighting - Delivering energy-efficient LED retrofitting services that improve lighting performance and reduce consumption.
  • LED Upgrades - Delivering energy-efficient LED retrofitting services that improve lighting performance and reduce consumption.

See our comprehensive portfolio of Projects and Awards

Team leaders

Glen Wright
Principal

Alan Baird-Smith
Lighting Designer

Domenico De Vincentis
Associate - Engineering

Sean McCrum
Associate Principal- Engineering

Building Performance

About

S&T’s Building Performance Team assists in the delivery of efficient, dry, resilient, and comfortable buildings. We consider many factors, including thermal envelope design, building orientation and window-to-wall ratio, appropriate ventilation, heating systems and mitigation of overheating. We’re passionate about best industry practices and improving on these to drive for more sustainable outcomes. We also see our role as promoting building performance strategies that are urgently needed in New Zealand to improve our building stock and reduce our environmental impact.


To do this, our architects and engineers work together to reduce reliance on non-sustainable resources and create environmentally sensitive and responsible designs. This makes for buildings with a lower environmental impact that enhance health, productivity, community, and quality of life.

Services

  • Life Cycle Assessments (LCA)
  • Environmental Computer Modelling
  • Thermal Envelope Analysis and H1 Compliance
  • Interstitial Condensation Prediction
  • Healthy & Low-emitting Materials Analysis
  • NZGBC Greenstar Assessments
  • V5 Homestar Assessments
  • NABERSNZ Ratings

See our comprehensive portfolio of Projects and Awards

Team leaders

Tony Sanderson
Principal

Helen Schofield
Building Performance Team Lead