HDSgreentech Ltd

HDSgreentech Ltd HDSgreentech specialise in helping building design and construction teams meet their energy, carbon and BREEAM targets.

We can validate design and provide the advice using an experienced consultants and the latest 3D thermal modelling techniques. Vision - To deliver a better built environment experience with integrity at its core. Mission - To provide sustainable building solutions for everyone, that lessens environmental impact and waste. HDSgreentech offers the construction industry an accredited and rigorous bui

lding simulation and design advice service with over 30 years experience. We provide our clients with the right advice at the right time, backed by detailed simulation and calculation. We give close attention to simple, low cost and effective design features and firmly believe we can offer benefits to all projects, large and small alike. Our simulation services not only inform and validate building designs, but also ensure projects are engineered specifically to meet the brief, without the over-engineering that so often occurs. Examples of the latter include reducing the need for overly complicated and expensive building services.

💧🚰 Clean water, decent toilets and good hygiene should be normal for everyone.Almost 1 in 10 people worldwide don’t have...
23/04/2025

💧🚰 Clean water, decent toilets and good hygiene should be normal for everyone.

Almost 1 in 10 people worldwide don’t have clean water close to home, and 1.5 billion people don’t have their own toilet. Diarrhoea caused by dirty water and poor toilets kills a child under 5 every 2 minutes. Good hygiene is integral to keeping people healthy and helping to stop the spread of disease and yet 2 billion people don’t have access to clean water and soap.

As supporters of WaterAid we provide a monthly donation to help this international not-for-profit organisation in its goal to deliver clean water, toilets and good hygiene to all within a generation. So far, WaterAid has reached around 29 million people, providing them with the three essential components.

Change starts with water.

Find out how you can help.
Visit https://www.wateraid.org/uk/

Happy Easter from the team at HDSgreentech
18/04/2025

Happy Easter from the team at HDSgreentech

🔥❄️ Deliver maximum Thermal Comfort through early evaluation.Do you want to ensure your build delivers maximum thermal c...
16/04/2025

🔥❄️ Deliver maximum Thermal Comfort through early evaluation.

Do you want to ensure your build delivers maximum thermal comfort including Part O compliance?

Overheating risks are rising, driven by climate change, airtight designs, and increasing urban density, making a strategic approach to passive and active cooling essential.

At HDSgreentech we provide thermal comfort analysis using the latest 3D thermal modelling techniques, helping design teams navigate the complexities of Part O without compromising design.

Use our services to ensure both comfort and regulatory standards and to evaluate:

• Solar gain and glazing strategies, balancing daylight and shading to mitigate overheating.

• Ventilation effectiveness, optimising natural, mechanical, and hybrid solutions.

• Thermal mass and insulation, using the right materials to regulate indoor temperatures.

Early-stage analysis is critical. Whether you're working on new builds or retrofits, integrating passive design measures and efficient cooling strategies can reduce costs and future-proof buildings against rising temperatures.

If you're navigating thermal comfort challenges and need expert insights, get in touch.
Email [email protected]
Call 07738946988
Visit https://www.hdsgreentech.co.uk/

09/04/2025

🏡 Are you a homeowner planning a new build or extension?

During the design phase, make sure you are maximising daylight potential, assessing the impact on adjacent buildings and considering tree shading to meet recommended planning requirements. ☀️

Daylighting within the construction sector ensures the best use of natural light to minimise the need for artificial light. This helps to reduce energy costs, make your building more sustainable and improve your comfort levels.

There are several building standards that your project will need to adhere to, so getting ahead of these from the outset will save unnecessary timewasting and expenses.

How can we help?

At HDSgreentech, we provide you with expert daylight analysis. Using the latest advanced software, we not only ensure that your building design meets recommendations but also allow you to optimise daylight.

Get in touch to discuss how you can bring more daylight into your domestic building project.
Email [email protected]
Call 07738946988
Visit https://www.hdsgreentech.co.uk/

🌱💡 Energy Hierarchy is a critical framework for designing and delivering truly sustainable buildings.Providing a smarter...
02/04/2025

🌱💡 Energy Hierarchy is a critical framework for designing and delivering truly sustainable buildings.

Providing a smarter approach to building performance, it doesn’t just jump into using renewables without addressing inefficiencies at the core.

• Be Lean – reduce energy demand first. Prioritise passive design to minimise the need for heating and cooling.

• Be Clean – optimise energy use. Integrate efficient mechanical systems, heat recovery solutions, and smart building controls.

• Be Green – supply energy sustainably. Once demand is reduced and optimised, incorporate renewable technologies like PV panels, heat pumps, and district heating networks.

This hierarchy aligns with Part L of Building Regulations, ensuring compliance while driving long-term cost and carbon savings. However, with Future Homes Standard and Future Building Standards on the horizon, energy efficiency measures will no longer be optional – they will be essential. So, the question to anyone in the building sector with responsibility for building design and construction is if Energy Hierarchy is being effectively used from the outset?

At HDSgreentech, we are constantly evaluating the best ways to ensure Energy Hierarchy as we help clients meet their energy, carbon and BREEAM targets using the latest 3D modelling techniques.

If you’d like to better embed these principles into every stage of your building design and construction, get in touch.
Email [email protected]
Call 07738946988
Visit https://www.hdsgreentech.co.uk/

🐝 As proud sponsors of The Honeypot Children’s Charity, we provide a monthly contribution to help them support young car...
26/03/2025

🐝 As proud sponsors of The Honeypot Children’s Charity, we provide a monthly contribution to help them support young carers.

Honeypot is a national charity providing young carers with desperately needed countryside respite breaks alongside a wraparound service. These breaks give young carers with responsibilities beyond their years the opportunity to make happy childhood memories and build brighter futures.

Demands on the charity have never been greater. As the cost of living is affecting many families across the UK, young carers need their services now more than ever.

Discover more about The Honeypot Children’s Charity, its activities, the significant positive impact it has on the children it supports, and how you can contribute to making a difference.
https://www.honeypot.org.uk/

Meet the Team🌿We were delighted when Keith joined us as a Sustainability Consultant in 2019. With a first-class master’s...
19/03/2025

Meet the Team🌿

We were delighted when Keith joined us as a Sustainability Consultant in 2019. With a first-class master’s degree in mechanical engineering, an international career pioneering Integrated Environmental Solutions (IES) Modelling and 12 years working in conservation, he promotes the values of excellence and environmental protection that we, too, endorse.

Keith’s career to date has been extensive and varied, with sustainable design and environmental impact at its core. Here are just a few highlights:

• 2003 saw Keith introduce the first IES software to New Zealand while working as a design engineer

• Headed up the mechanical design for the Les Mills flagship gym

• Projects range from work on a wide variety of buildings from the Farnborough Exhibition & Conference Centre to prisons, offices, schools, nursing homes, and a skyscraper in Dubai

• Alongside his mechanical engineering career, Keith works in conservation with primates and other animals from helping run a multi-park sanctuary with volunteers to setting up a new park with only river access in Bolivia, through to developing release methods for baboons in South Africa.

With his solid foundation in IES modelling, Keith brings a holistic view to your project, understanding the different aspects of the design process, and will always go the extra mile.

Email [email protected]
Call 07568 137661
Visit https://www.hdsgreentech.co.uk/about.asp

🏢 Do you need an EPC certificate for your commercial property?If you’re looking to sell or lease your commercial propert...
12/03/2025

🏢 Do you need an EPC certificate for your commercial property?

If you’re looking to sell or lease your commercial property you will need to provide a valid Energy Performance Certificate (EPC).

When selling a non-domestic commercial property, an EPC must be in place when the property goes onto the market and provided at exchange of contracts.

If you’re looking to lease your commercial property, the EPC will be valid for ten years, providing no major renovations have been made.

As a Level 5 accredited Low Carbon Energy Assessor, Damian can undertake your EPC assessment for any non-domestic building in England. Once completed you will receive a lodged EPC with any recommendations to help make your building more energy efficient, should that be required.

Email [email protected]
Call 07738946988
Visit https://www.hdsgreentech.co.uk/services.asp

06/03/2025

⚡Did you know that the UK has one of the highest Spark Gaps in Europe?

The cost differential between gas and electricity per kWh, known as the spark gap, this makes environmentally harmful gas-fired heating much more appealing within the UK. We’ve all seen the push for heat pumps, but the cost of these means that they need a SCOP of 3.9 or better to break even.

This economic driver is completely at odds with our desire to cut our environmental impact and lead the way to decarbonisation.

The hope is that this will change as gas is phased out of our national grid and the carbon intensity of electrical generation decreases.

Whilst the Government and policymakers can drive progress, we can all work towards environmental goals by using the latest research and thermal modelling within building design.

For more information:
Email [email protected]
Call 07738946988
Visit https://www.hdsgreentech.co.uk/

28/02/2025

New UK Net Zero Carbon Buildings Standard now being piloted🌿

Following two years of development a science-led UK standard has now been released. The purpose of this is to align all major building sectors with the Paris Agreement’s goal of limiting global warming to no more than 1.5°C above pre-industrial levels.

The standard has been produced following a collaboration by industry experts and is designed to enable the building industry to robustly prove their build assets are net zero carbon.

Key principles
• Covers both operational and embodied carbon
• Focuses on energy efficiency and closing the gap between design and real-world performance
• Prioritises reuse of buildings and materials
• Takes a Whole Life Carbon approach
• Encourages on-site renewable energy generation
• Supports grid decarbonisation and electrification, through demand management
• Applicable to new and existing buildings across all sectors

At HDSgreentech, we are monitoring the pilot and can advise on how to incorporate measures into your project. Once further data has been collected, the standard will develop, and we will stay informed to ensure projects meet vital industry targets for sustainable buildings.

Get in touch for more information and to discuss your project.
Email [email protected]
Call 07738946988
Visit https://www.hdsgreentech.co.uk/

🎡 Dates for your diary!Copythorne Carnival will be held from 7th to 9th June. This annual celebration, which has been ta...
19/02/2025

🎡 Dates for your diary!

Copythorne Carnival will be held from 7th to 9th June. This annual celebration, which has been taking place since 1947, provides an array of activities and entertainment to raise funds for Stanley’s Own Scouts, which supports over 200 local youths. We are delighted to sponsor the Copythorne Carnival Run 2025 once again! 🏃‍♂️

Day one is Carnival Day, and includes the carnival parade, a steam engine tug of war, BBQ, live music and a bar (plus MUCH more).

Day two sees classic cars, tractors and tools during their ‘Steam Rally Day’, again supported by refreshments, craft stalls and live music.

The Carnival concludes on day three with the Copythorne (New Forest) 5k/10k Run around the village. Join the run or come along and support – either way, you’ll have a chance to support the BBQ and Barista.

Our MD, Damian, is delighted to be running for the fourth year and our third year contributing financially: “I love the Copythorne Carnival Run – it’s not only a great opportunity to run in a delightful part of Hampshire, but the atmosphere is fun and friendly. I’m looking forward to getting my running shoes on and meeting fellow running enthusiasts.”

We hope to see you at the carnival. Find out more at https://www.copythornecarnival.co.uk/


Copythorne Carnival Run 2025

With Copythorne Carnival – I just got recognised as one of their top fans! 🎉
14/02/2025

With Copythorne Carnival – I just got recognised as one of their top fans! 🎉

Happy Valentines from HDSgreentech
14/02/2025

Happy Valentines from HDSgreentech

Maximise daylight potential and meet planning requirementsWhether you're a planning consultant, developer, project team,...
12/02/2025

Maximise daylight potential and meet planning requirements

Whether you're a planning consultant, developer, project team, contractor, or resident, you need reliable evidence for planning submissions delivered with accuracy and efficiency. Use our expert daylight and overshadowing analysis to ensure your project meets BRE 209 2022, BREEAM, or DfE Output Specification Annex 2E.

With 40+ years of combined expertise, we use comprehensive IESVE software to produce detailed simulations and calculations. These can be used to optimise building designs and solve potential planning challenges.

Key services for your project
• Target Illuminance Levels to demonstrate internal daylight
• Overshadowing Analysis to assess the impact on main amenity spaces
• Vertical Sky Calculations (VSC) to demonstrate the impact on neighbouring properties
• Climate-Based Daylight Modelling for Schools Output Specification compliance
• Average Daylight Factors (ADF) Calculations provide BREEAM evidence

Sectors covered
🏡 Residential | 🏫 Schools | 🏢 Offices | 🏛 Community Buildings

Get the right advice at the right time to navigate planning, optimise daylight, and enhance building performance.

Let's discuss your project today!
Email [email protected]
Call 07738946988
Visit https://www.hdsgreentech.co.uk/

Meet the TeamClare joined HDSgreentech in 2017, bringing transferable skills from previous employment that provided an a...
05/02/2025

Meet the Team

Clare joined HDSgreentech in 2017, bringing transferable skills from previous employment that provided an alternative perspective, helping to balance the team.
In 2020, she completed a Level 3 BTEC Diploma in ‘Construction and the Built Environment’ at Southampton City College, achieving a Distinction/Merit. Clare followed this up by attending an ‘Introduction to Zero Carbon Buildings’ at the University of West England.
Clare reflects on the past eight years: “Through my work and the training courses I've undertaken at HDSgreentech, I've learned to deliver sustainable, holistic designs, considering site characteristics, built form, and renewable strategies. I've also developed our Daylight Assessments, working closely with local planners to provide support and guidance to achieve recommendations. I'm always happy to go above and beyond for our clients."

Find out more about Clare and the team at HDSgreentech and get in touch to discuss your building project.

Email [email protected]
Call 07738946988
Visit https://www.hdsgreentech.co.uk/about.asp

28/01/2025

Have you paid for overly complicated and expensive building services in your mission to meet energy, carbon and BREEAM targets?

Too often, sustainable solutions are presented that are over-engineered, leading to increased costs whilst not improving .

Detailed simulations and calculations allow us to provide clients with the right advice, at the right time. Close attention is paid to simple, low cost and effective design features that deliver benefits to all projects, large or small. Building physics not only inform and validate building designs but also ensure projects are engineered specifically to the brief.

For building sustainable solutions that deliver
Email [email protected]
Call 07738946988

Meet the TeamFounder of HDSgreentech, Dr Damian Markham-Smith, has over 20 years of experience working on and delivering...
22/01/2025

Meet the Team

Founder of HDSgreentech, Dr Damian Markham-Smith, has over 20 years of experience working on and delivering sustainable solutions for buildings.

Gaining a PhD in computational fluid dynamics gave Damian a firm foundation in computational modelling and he was one of the first 15 CIBSE-accredited low carbon energy assessors in the country.

“Reflecting on two decades in the industry, I’m proud to have contributed to award-winning sustainable designs and collaborated with some incredible teams. From EPCs to TM54s, my journey has always been about balancing innovation, practicality, and the needs of the client."

Find out more about Damian and the team at HDSgreentech and get in touch to discuss your building project.

Email [email protected]
Call 07738946988
Visit https://www.hdsgreentech.co.uk/about.asp

Do you need to secure a development proposal?If you need any of the following services to help secure your proposal, we ...
15/01/2025

Do you need to secure a development proposal?

If you need any of the following services to help secure your proposal, we can help:
• Daylighting Analysis
• Part L Compliance
• Thermal Comfort Studies / Part O
• Energy Statements
• Heating and Cooling Loads
• Energy Studies

"I would highly recommend HDSgreentech for their ability to demonstrate natural light measurements in a new development. They have proven time and again their professional standard, qualifications and experience to help me secure proposals."
Darryl, Planning Consultant

Email [email protected]
Call 07738946988
Visit https://www.hdsgreentech.co.uk/

Address

Southampton
SO451ED

Opening Hours

Monday 8:30am - 6pm
Tuesday 8:30am - 6pm
Wednesday 8:30am - 6pm
Thursday 8:30am - 6pm
Friday 8:30am - 5pm

Telephone

+447738946988

Website

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