Visual Impact


Ireland is an island nation and our coastal landscapes and seascapes are an important and highly appreciated factor in our identity. They make a major contribution to our economy, tourist industry and quality of life. Existing legislation and regulations (to June 2020) governing construction at sea afford virtually no protection to our coastal landscapes.

Under The Foreshore Act 1933, the Minister for the Marine has responsibility for assessing the potential impact of offshore developments including impact on coastal landscapes, a factor which was probably not envisaged when the legislation was drafted. There is no statutory involvement of local planning authorities, whose jurisdiction ends at the shoreline, and no public right of appeal to an independent appeals board such as An Bord Pleanála.

In making a decision on foreshore lease applications, the Minister is advised by a Marine Licence Vetting Committee (MLVC), which assesses the information provided in the developer's Environmental Impact Statement and makes recommendations to the Minister. The MLVC is composed of scientific and technical experts. It does not have a landscape professional as a member.

Under Ireland’s outdated permitting system, which is no longer 'fit for purpose', no independent, professional assessment of the potential visual impact of offshore wind farms, individual or cumulative, is carried out. This is a very serious gap in the proper assessment of large-scale industrial projects proposed off high amenity coastlines, some designated as Areas of Outstanding Natural Beauty in order to preserve their special scenic qualities.

International experience shows that the visual impact of offshore wind farms is an issue of paramount concern to local authorities and communities. Reflecting this concern, many EU countries are introducing buffer zones of 12 nautical miles (22.2km) to protect coastal areas. International comparisons show that Ireland is out of line with good international practice in having permitted large-scale offshore wind farms with hundreds of giant turbines in sensitive, inshore zones. Apart from perhaps the UK which, unlike Ireland, needs substantial amounts of offshore wind to reach binding EU targets for renewables, no other country in the EU is proposing large-scale development for inshore areas.

Ireland’s inadequate regulatory regime which affords no protection to coastal landscapes was compounded by the Irish authorities’ failure to carry out a Strategic Environmental Assessment, in line with the EU SEA Directive, to assess cumulative impacts prior to permitting two of the biggest offshore wind farms in the world (totalling 1620MW) 10/12km off Wicklow.


Now, in 2020, government are moving to rectify these historic failings by putting in place Ireland's first National Marine Planning Framework (a Marine Spatial Plan) and undertaking review and reform of foreshore legislation (Marine Planning and Development Management Bill, 2019). In addition, it appears that they have moved to require all applications for final development consent (Maritime Option) to be considered under the updated legislative framework. A Planning Interest has been granted to seven 'Relevant' offshore wind proposals, six of which are situated within 5-12km of Ireland's east coast from Dundalk Bay to north Wexford. The seventh is 5km from the coast at nearest point in Galway Bay.

How this process proceeds remains to be seen. Given that the new legislation categorises ORE developments as Strategic Infrastructure, applications for development consent will be determined by An Bord Pleanála but the public will remain without access to a review procedure that is fair, equitable, timely and not prohibitively expensive as is usually required under the Aarhus Convention and the Public Participation Directive. The only way to challenge decisions made by the Bord will be through Judicial Review.


The seven proposals for development consent that have now been granted Planning Interests, have all laid claim to the Relevant sites with no official assessment of the potential visual impact of proposed developments on the Irish coastal landscapes in advance of sites being allocated. Additional shortcomings are detailed in all CCA documentation. When such developments were first proposed, Ireland’s Marine Institute commissioned a report ‘Assessment of the Impact of Offshore Wind Energy Structures on the Marine Environment’, (April 2000). The scope of the study was limited to impacts on the underwater marine environment. Landscape / seascape impacts were not considered.

The Department of Communications, Marine and Natural Resources had been responsible for foreshore administration. The Department's ‘Offshore Electricity Generating Stations - Notes for Intending Developers’, (May 2001) is the key document providing guidance for offshore wind farm developers. The document devotes one paragraph to visual issues. It states:

“Where a proposed wind farm development is less than 5km from the shore, the developer must clearly demonstrate that it will not have a significant adverse visual impact.”

This implies that, if developments are sited at a distance of greater than 5km (3 miles) from shore, developers are not obliged to demonstrate that they will not have “a significant adverse visual impact”.

In spite of these lax regulations, Adverse Major Visual Impacts have been predicted in Environmental Impact Assessments already carried out in relation to wind farm developments on the Arklow Bank, the Codling Bank, the Kish and Bray Banks and for Sceirde wind farm in Galway Bay. Adverse Moderate Impacts are predicted for the Oriel windfarm in Dundalk Bay.

Photomontages showing the adverse Visual Impact Assessment of the proposed Dublin Array windfarm (Kish and Bray Banks) can be viewed here.


The trend now in strategic planning for coastal areas is to introduce buffer zones to protect high quality coastal landscapes. Germany, Belgium and Netherlands have introduced 12 nautical mile exclusion zones for offshore wind (22.2 km). In Ireland, the two extensive offshore wind farms permitted off Wicklow are inside this exclusion zone, 10/12 km off a coastline designated as an Area of Outstanding Natural Beauty.

The visual impact assessment of the two extensive developments off Wicklow was grossly inadequate. Details here. Absence of independent, professional landscape impact assessment, misleading photomontages and limited public consultation have combined to ensure that no-one has a clear idea of what these two extensive developments will look like or their impact on the quality and character of the Wicklow coastline.

Wicklow’s heritage is at risk. Corrective action must be taken. Independent professional assessment of cumulative visual impact must be carried out in line with best international practice before any public money is devoted to furthering these developments.


Landscape and Seascape Character Assessment

In contrast to Ireland, which has permitted and progressed significant development in coastal waters without any seascape character assessment, assessments have now been carried out for all English waters to help develop an evidence base for marine planning purposes (Landscape and Seascape Character Assessments, 2014). The assessments, according to the Marine Management Organisation, "can be used to aid decision makers and developers in making the correct decision when considering proposals in the marine area. Further work is needed on seascapes to meet the UK Marine Policy Statement’s requirements for marine planning purposes. The next step is to consider the quality of seascapes, how highly they are valued and an area’s ability to accommodate change. It should be noted that the assessments are an objective not a subjective view of seascape character and visual resource."

The UK’s Marine Policy Statement (MPS), 2011 (, developed following extensive consultation, states that when developing marine plans, visual, cultural, historical and archaeological impacts should be taken into account. The MPS adds that any wider social and economic activities on coastal landscapes and seascapes should also be considered, taking into account existing character and quality ( Extensive stakeholder engagement was used to validate, refine and agree seascape character assessment. The desk based analysis followed the principles set out in Natural England’s approach to Seascape Character Assessment.

Visual Impact - A major concern

The visual impact of offshore wind farms is a matter of major concern and evaluation in other EU countries. In the United Kingdom, a comprehensive document ‘Guidance on the Assessment of the Impact of Offshore Wind Farms: Seascape and Visual Impact Report’ (2005) states:

“The growth expected in the offshore wind farm industry in England and Wales has the potential to change the seascape and visual amenity of coastal landscapes. Existing information, experience and issues of concern about seascape and visual assessment, and of offshore wind farms, are not necessarily in the public domain or documented within existing guidance and environmental statements.”

Scottish Natural Heritage commissioned a report ‘An Assessment of the Sensitivity and Capacity of the Scottish Seascape in relation to Windfarms’ (2005). The objective was to develop, agree and apply a methodology for the strategic assessment of seascape sensitivity to, and capacity for, offshore wind farm development.

The Environment & Heritage Service (Northern Ireland) also produced a report ‘Wind Energy Development in Northern Ireland Landscapes’ (February 2008). Given plans for increased cross-border cooperation, this document, which refers to seascape, underlines the urgent need for Ireland to assess landscape and seascape sensitivity to wind energy development.


The attention to visual impact assessment in the UK and other EU countries is in marked contrast to Ireland where no assessment of the sensitivity of Irish coastal landscapes to offshore wind farm development has been carried out. This represents a serious failure by government to protect one of Ireland's most important national assets, highly valued by local people and tourists alike.