Working to support the delivery of attractive urban environments.

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Using computational methods and robust procedures GV8 predicts the levels of daylight and sunlight that will be available both within and around new developments.

Evolution

GV8’s competencies in daylight sunlight testing can be traced back over 20 years to specialist consulting services provided by the Energy Research Group (ERG) in UCD.
At a time when daylight consulting was in its infancy ERG developed an early capacity to offer quantitative testing using computational methods.

In 2007, the simulation services provided by ERG evolved into a professional practice (called Aurea Consult) which was headed by Dr. Patxi Hernandez. Under the leadership of Dr. Rory Walsh, the practice evolved again in 2016 into BPG3 before rebranding in 2022 to GV8.
Timeline

2003

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The Energy Research Group UCD develop the capacity to predict daylight sunlight levels and energy performance using computational methods.

2007

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The simulation services provided by ERG evolve into a professional practice, headed by Dr. Patxi Hernandez, called Aurea Consult.

2010

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Rory Walsh is employed as a daylight sunlight analyst

2013

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Aurea Consult expands to provide Daylight & Sunlight services to ESB Commercial Properties during the design and planning phases of their HQ redevelopment in Dublin city centre.

2016

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The practice is formalised in Ireland as BPG3 under the leadership of Dr. Rory Walsh

2017

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BPG3 plays an instrumental role in the establishment of quantitative daylight sunlight testing as the approach recommended in new ministerial planning guidelines

2022

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As part of open consultation process BPG3 makes positive contribution to the drafting of the daylight sunlight guidelines present within DCC’s latest development plan.

2022

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With an eye to the future the practice rebrands to GV8.

2003

The Energy Research Group UCD develop the capacity to predict daylight sunlight levels and energy performance using computational methods.

2007

The simulation services provided by ERG evolve into a professional practice, headed by Dr. Patxi Hernandez, called Aurea Consult.

2010

Rory Walsh is employed as a daylight sunlight analyst

2013

Aurea Consult expands to provide Daylight & Sunlight services to ESB Commercial Properties during the design and planning phases of their HQ redevelopment in Dublin city centre.

2016

The practice is formalised in Ireland as BPG3 under the leadership of Dr. Rory Walsh

2017

BPG3 plays an instrumental role in the establishment of quantitative daylight sunlight testing as the approach recommended in new ministerial planning guidelines

2022

As part of open consultation process BPG3 makes positive contribution to the drafting of the daylight sunlight guidelines present within DCC’s latest development plan.

2022

With an eye to the future the practice rebrands to GV8.

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Expertise & Approach

Looking up to a blue sky between two modern buildings in Grand Canal Dock Dublin.

Our Specialisation in Natural Light Assessment

Driven by the conviction that predictive modelling plays a crucial role in designing attractive, healthy, and sustainable developments, GV8 specialises in assessing natural light. Our expertise lies in predicting the impact of new developments on neighbouring properties, providing essential information for informed planning decisions.

Commitment to Scientific Accuracy

Having invested significantly in the science underlying daylight prediction, we stand confident in the validity, accuracy, and repeatability of our modelling outputs. GV8 believes in delving deep into the details of a problem to secure better results, producing daylight reports that can withstand the highest levels of expert scrutiny.

Expertise in Urban Site Projects

A key strength we've developed is preparing daylight reports for challenging urban sites. By fully considering daylight standards and their relationship to wider planning policies, we carefully balance the protection of existing amenities with the creation of new ones.

Navigating the Dynamic Field of Daylight Assessment

The assessment of daylight sunlight is an ever-changing field, filled with active debates and continuous updates. At GV8, we provide the professional oversight and specialist expertise needed to navigate the intricacies of daylight standards, their interplay with planning policies, and legal systems.

Adopting a rigorous approach in all testing GV8 produces daylight sunlight assessments that can withstand the highest levels of expert scrutiny.

Testimonials

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Position, Company name

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Name Surname

Position, Company name

Rory Walsh has worked with us on a number of residential and commercial projects. His work is consistently accurate, thorough and fair. His opinion is highly respected amongst the Statutory Planning Authorities. I have no difficulty recommending him and GV8 to future clients.

Patrick Linders

Linders of Smithfield LTD

“Thank you, Rory. Your input and reports across all the projects was superb. I learnt a lot about the issues from you, appreciated your guidance throughout and the professionalism when responding to legal advice.”

Simon Reader

General Manager Quinlan Group

“The BPG3 assessment makes the case for a flexible interpretation of daylight results as recommended in BRE Guidelines Site Layout Planning for Daylight and Sunlight. It is argued that while the minimisation of impact on neighbouring buildings should always be aspired to, the associated imperative to create sustainable levels of urban density, to encourage the development of compact urban form and to make use of scarce urban land will always place restrictions on the degree to which it is appropriate to pursue full compliance with BRE Guidelines. I consider that these arguments are well made.”

Bríd Maxwell

Planning Inspector, An Bord Pleanála

“Noonan Construction engaged the services of GV8 (formerly BPG3) for the daylight/sunlight analysis on the planning application for a large housing & apartment scheme at Ballygossan Park in Hacketstown in Skerries. We were delighted with the quality of the report prepared by Rory Walsh and his colleagues in a timely and professional manner. “

Kieran Noonan

Managing Director, Noonan Construction Co Ltd.

“Concerns have been raised by appellants with regard to the impact of the development from the perspective of sunlight and daylight loss. The applicant has prepared a very detailed assessment, entitled Daylight Impact Report and prepared by BPG3 (Dr Rory Walsh – Daylight Assessment Specialist), to which the planning authority raise no concerns of note.”

Stephen Rhys Thomas

Senior Planning Inspector, An Bord Pleanála

“The issue of daylight/sunlight in relation to Finsbury House is comprehensively dealt with by way of detailed modelling analysis, which is to be commended. “

Ger Ryan

Planning Inspector ABP

“Thanks a lot for the documents. Your report is absolutely great, serious and well documented. It represents a lot of work. In particular I like how you defend the spaces that do not reach but are close enough. We always tried to do that when we did that kind of expertise and I think it is the most important part.”

Jean Domininque Lénard

Co-Founder of De Luminae

Our Team

Dr. Rory Walsh

Dr. Rory Walsh

BEng PhD MScSP

Rory is a building performance engineer with key competencies in energy, comfort, and daylight modelling. Specialising in the assessment of daylight adequacy in a planning and development context Rory has had cause to write and review many daylight reports over the past ten years. Rory acts as principal consultant with GV8.

Dr. Patxi Hernandez

Dr. Patxi Hernandez

PhD LEED AP

With a background in building performance and energy engineering Patxi was one of the first professionals to offer quantitative daylight testing in Ireland. Patxi is a qualified LEED AP with key competencies in the areas of lifecycle analysis and zero energy buildings.

Dmytrii Ogir

Dmytrii Ogir

MArch

With a background in 3D modelling and rendering Dmytrii is responsible for building the geometry which underpins all of GV8’s computational testing. Dmytrii takes principal responsibility for the development of accurate context models for use in daylight impact testing.

Oksana Ogir

Oksana Ogir

BArch

With competencies in both architecture and modelling Oksana prepares 3D models for import to our analysis software. Oksana takes principal responsibility for translating 2D schematics of the proposed design into 3D daylight models.

People we have worked with:

Quintain
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Noonan Construction
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Versus Limited
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St Vincent de Paul Society
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Mountbrook Homes
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Grayling Properties
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Tifco Hotel Group
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Cluid Housing Association
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Atelier Property
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Carrowmore
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Hibernia Real Estate Group
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Avestus Capital Partners
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Adelaide Real Estate Investments Plc
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Irish Life Assurance PLC
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Intrust Properties
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Bruce Shaw Partnership
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Mullins Investments
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KSH Europe Holdings
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Summix Developments
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Tetrarchcapital
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Hauck & Aufhäuser
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Fold Housing Association CLG
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Savills
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Maxol Property
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INVESCO
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ALONE
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Gresham House Real Estate
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Richmond Homes
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Quinlan Group
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Linders Property
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ESB Commercial Properties
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HWBC
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McGarrell Reilly Group
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IQEQ
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Castlethorn
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HookeMacdonald
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Ronan Group Real Estate
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IPUT plc
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Blacklion
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DAVY
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O'Leary Sludds
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Morrison Design
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Adrian Hill Architects
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Studio 3
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TOTP
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Shaffrey Architects
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Cantrell & Crowley
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PCOT
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NMA
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Duignan Dooley
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Crawford
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DTA
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+Architecture
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Consarc Design
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CJ Falconer and Associates
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Boyes Rees
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MDO
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C&W O'Brien Architects
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Burke-Kennedy Doyle
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Shay Cleary
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John Fleming
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JFOC
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HKR
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Urban Agency
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RKD
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Reddy Architecture & Urbanism
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Henry J Lyons
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O'Mahony Pike
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ODOS Architects
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BDP
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Grafton
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Tom Philips Associates
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TOCTP
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Thornton O'Connor
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RW Nolan
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MDO
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McCutcheon Halley Walsh
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John Spain Associates
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IMG Planning
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Declan Brassil
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BMA Planning
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Let's Talk

Book a Site Appraisal

Are you at the early stage of a sites development? GV8 has the expertise and tools needed to quickly identify the design outlines that your site could support. Please get in touch at any stage to book a free preliminary, no strings attached, consultation.

Book a Presentation

Having specialised in this field of practice for over ten years GV8 has a deep understanding of daylight standards and their interaction with planning policy. Please get in touch if you would like GV8 to deliver a talk to the members of your organisation.