Case Studies

Residential Developments

TEAM

Environmental Team

Sector

Services Provided

Ecological Consultancy

Overview of service

ORS was engaged to undertake ecological assessments for a large-scale housing project, including a Preliminary Ecological Appraisal (PEA), habitat mapping, and Appropriate Assessment (AA) screening.

The site comprised hedgerows, treelines, and semi-natural habitats of moderate ecological value, with potential to support protected species such as bats and nesting birds. Working closely with the design team, ORS identified ecological constraints early and recommended layout modifications to retain key habitat features and buffer zones.

Project Outcome

ORS applied a targeted, best-practice methodology to streamline the planning process and reduce ecological risk. This included Preliminary Ecological Appraisal and habitat classification, Appropriate Assessment screening (and Natura Impact Statement where required), species-specific surveys, and Ecological Impact Assessment, supported by effective risk management.

In addition, ORS advised on Biodiversity Net Gain (BNG) opportunities, incorporating native planting schemes, pollinator-friendly landscaping, and green infrastructure. This approach ensured not only planning compliance but also that the site would be left in an enhanced ecological condition post-development.

Challenges & Solution

Ecological Constraints – The presence of semi-natural habitats and potential for protected species required early identification and sensitive design responses.

Planning and Compliance – Ensuring alignment with Appropriate Assessment requirements and broader ecological legislation was critical to project progression.

Balancing Development and Biodiversity – Integrating biodiversity enhancements within a large-scale residential layout required close coordination with the design team.

Leads

Key Contacts

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Luke Martin

Director
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Oisín Doherty

Associate Director
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Damian Kenny

Director

Arranmore Residential Development

Marlet Property Group appointed ORS to deliver PSDP services for the Arranmore Residential Development, in Dublin.

Health & Safety

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Ballymastone, Dublin

ORS was appointed by Glenveagh to provide Assigned Certifier services for the construction of a major residential development at Ballymastone in Donabate, Co. Dublin.

Assigned Certifier

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Claremont, Howth

ORS acted as Project Supervisor Design Process (PSDP) from early design through to completion for the residential development at Claremont, Howth Road, Howth, Co. Dublin.

Health & Safety

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Data Centre Development, Co. Meath

ORS was appointed to deliver ecological consultancy services to support a planning application for a new data centre.

Environmental

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Dún Laoghaire-Rathdown County Council

ORS was appointed by Dún Laoghaire–Rathdown County Council (DLR CoCo) to deliver a large-scale Building Surveying Inspections programme across the council’s rented accommodation portfolio.

Building Surveying

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Flood Relief Scheme, Co. Limerick

ORS was commissioned by RPS Group, on behalf of Limerick City and County Council, to provide ecological surveys ahead of a major flood relief scheme in and around Limerick City.

Environmental

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Iarnród Éireann/Irish Rail Asset Surveys

ORS was engaged by Iarnród Éireann / Irish Rail to deliver a comprehensive programme of structural and facilities surveys, integral to their 5-year rolling asset management strategy.

Building Surveying

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Marshalls Yard

Eagle Street Partners appointed ORS as Assigned Certifier for Marshalls Yard regeneration project in Dublin’s docklands.

Assigned Certifier

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Pembroke 1A, Glass Bottle Development

Glass Bottle Partners appointed ORS to support redevelopment of a transformative mixed-use district on Dublin’s waterfront.

Assigned Certifier

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Project Tosaigh II

ORS was appointed by the Land Development Agency (LDA) under the Project Tosaigh II initiative to provide Quality Assurance services for two major residential developments in Cabinteely and Clongriffin, Co. Dublin, comprising a total of 642 housing units.

Assigned Certifier

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Renewable Biogas Facility, Co. Meath

ORS delivered ecological consultancy services in support of a proposed anaerobic digestion (AD) biogas facility in County Meath, acting on behalf of the developer throughout the planning and design process.

Environmental

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Renewable Gas Facility, Co. Waterford

ORS was appointed by Nephin Renewable Gas (NRG) as lead environmental and planning consultant for a major anaerobic digestion (AD) and biomethane facility at Reatagh, Co. Waterford.

Environmental

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Talk to A specialist

Residential Developments

Project Outcome

Challenges & Solution

Leads

Key Contacts

Luke Martin

Oisín Doherty

Damian Kenny

Related Projects

Arranmore Residential Development

Ballymastone, Dublin

Claremont, Howth

Data Centre Development, Co. Meath

Dún Laoghaire-Rathdown County Council

Flood Relief Scheme, Co. Limerick

Iarnród Éireann/Irish Rail Asset Surveys

Marshalls Yard

Pembroke 1A, Glass Bottle Development

Project Tosaigh II

Renewable Biogas Facility, Co. Meath

Renewable Gas Facility, Co. Waterford

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