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    Sustainable Architectural Performance
    Eco Logical
    Design Impact
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    Environment-led Analysis
    Environment-led analysis is conducted in the field and by advanced computer design simulation.
    It places human comfort, productivity, well-being and health, in addition to sustainable and
    energy efficient design, behaviour and use, at the heart of place making in the built environment.
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    Sustainable Development
    "Sustainable development is development that meets the needs of the present without
    compromising the ability of future generations to meet their own needs". Gro Brundtland

Professional / Holistic / Committed

Accredited and Socially Responsible


RCZM are well-travelled Low Energy Building Designers with almost 30 year’s experience in architecture, the built environment, project management and facilities management and operations with professional experience in the civic, private and mission-critical corporate sectors in the UK and Europe. RCZM is a small agile practice with a life-long altruistic concern for Our environment. RCZM work collaboratively to inspire, to motivate, to share informative abilities to facilitate better building performance by design.
RCZM are a CIBSE registered Low Carbon Building Design practice. We use a bespoke bioregional field-research method to carry out environmental impact assessments and sustainable design appraisals in support of RIBA Stage 0 and 1. We use dynamic computer simulation to analyse low-carbon design performace at RIBA Stage 1 through to Stage 4 as a precursor to Building Regulations Part L compliance. We provide Design and Access Statements in support of Planning Applications and provide Building Control Application production information and co-ordination. We carry out Post-Occupancy Evaluations in support of RIBA Stage 7 to inform RIBA Stage 0.
The built environment is a complex product: we see its occupants as user's; if the built environment not used with awareness then all the sustainable features may prove to be ineffective. RCZM adopt a holistic approach that inspires, informs and supports human needs, but not in isolation from the surrounding world. We support value in the sustainability of natural, human and social capital through design that places human health and well-being at its heart. We believe sustainable design should consider its financial cost and environmental impact for its entire life-cycle by addressing the triple bottom line of social, economic and environmental performance. We engage in collaborative design through BIM and added-value customer-service through Soft Landings. We aim to tread lightly on the earth.

RCZM are an ambitious small environmental practice

our approach


We provide

Empathetic Customer Service


As a business RCZM provide an attentive service at a fair price as a key responsibility in delivering a built environment whereby needs are met in a manner that is good for health and well-being.
We source and recommend with integrity in reducing environmental impact that makes a positive difference to the wider community through sustainable design that sets out to be a good neighbour.
We do not know everything, but we know that Your time matters. So we are constantly collaborating and learning in order to improve and expand our knowledge and services. We want to reduce energy consumption throughout the building life-cycle, through modern methods of construction and simple and cost-effective systems that are easy to use and benefit health and well-being.
Energy used
to build it
Energy used for thermal comfort
Energy used for small power
Energy used
for lighting
Energy used for
hot water
All other energy uses

We like



We all breathe the same air. We all cherish our children's futures.
John F. Kennedy
Unless someone like you cares a whole awful lot, nothing is going to get better. It's not.
Dr. Seuss
Design is not just what it looks like and feels like. Design is how it works.
Steve Jobs
Knowing is not enough, we must apply. Willing is not enough, we must do.
Bruce Lee
A good head and a good heart are always a formidable combination.
Nelson Mandela
Study nature, love nature, stay close to nature, it will never fail you.
Frank Lloyd Wright


Fully-inclusive SERVICES


For outstanding

breeam accreditation


just for fun

facts and numbers


cups of
cycled to
the moon
cycled around
the world
Hours of CPD




RIBA Plan of Works 2103

Services Guide


  • RIBA Stage 0-1
  • Bio-climatic/regional Analysis
  • Environmental Accreditation
  • Environmental Reporting
  • RIBA Stage 1-2
  • Concept Performance Analysis
  • Design performance Analysis
  • Resource Impact Reporting
  • RIBA Stage 2-4
  • Part-L Compliance
  • Daylight and Energy
  • Natural Ventilation
  • RIBA Stage 6-7
  • CIBSE TM22 energy audits
  • Environmental data-logging
  • Building User Survey

What we consider

in how we deliver


Sustainable Development
The built environment has a direct impact on the natural environment, the economy and human health and wellbeing. We can activity improve buildings by achieving comfort through passive design strategies and promoting a holistic approach to environmental design using a strategy with the aim of grounding the three pillars of sustainable design and the impact of their intended outcomes.
Principles of Construction
Designing to minimise waste and maintenance are integral to whole life asset management. Our principles of construction are developed in accordance with the BRE Green Guide to Specification and a simple palette of materials are proposed which reflects local vernacular materials used in the surrounding built environment. RCZM recommend using responsibe ISO 14001 sources within 35 to 50 mile radius of the site.
Our Project Eco-system
RCZM use holistic development principles to ensure all elements of design are identified and considered through out the delivery and occupancy process. RCZM design for performance and compliance with the national and local policies, regulations and standards for quality of life, accessibility, community benefits and connectivity, along side Passive design, CO2 reduction and protection of natural resources for economic viability and whole life value.
Building Performance Evaluation (BPE) is becoming progressively integrated into the full life cycle of a built projects. A less tangible yet decisive element of BPE is Post-occupancy Evaluation (POE), and its role and perceived value in this process. A qualitative review is undertaken to examine the increased prominence of the role of POE, its potential role within Building Information Modelling and Management (BIM) and the Building Energy Management System (BeMS).
Energy-use Behaviour
Behaviour in the home contributes to 50% of the energy consumption of the home. This study explored moderation of a persons energy-use and willingness to adopt sustainable energy consumption habits. The study builds on DEFRA's research that established behaviour change as necessary to achieve a sustainable society. The study proposes adapting the 'Behaviour Grid' for designers to motivate and raise a person's ability in support of willingness to undertake behaviour change.




I just wanted to let you know that the house you have designed is a real triumph. (We)think it will make a fantastic family home and would like to thank you for your patience, advice, calmness and ability to produce such an innovative piece of architecture.
Mr and Mrs Robertson
Private Residence

For further advice please get in touch

for a free 1 hour consultation


Postal Address

Your needs and future wellbeing are at the heart of what we do. If you want to get answers and information about any of our services, BIM Pre-qualification Questionnaire, or to discuss your project in more detail please get in touch.

Worting House, Worting Road, Basingstoke, Hampshire RG23 8PY

01256 331240


We welcome feedback

If you have had a thought about our services and we have already helped resolve a problem, or this led you to a further question we can help answer, do let us know. We are always developing new, interesting and insightful services that analyse wellbeing and impact of design for the built environment, so if you are curious we would love to hear from you.

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