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Purpose and Authority of PPS 15
NI-wide·PPS 15 Planning and Flood Risk (Revised)
This Planning Policy Statement, revised PPS 15 'Planning and Flood Risk' sets out the Department's draft planning policies to minimise and manage flood risk to people, property and the environment. It
flood-risksite-planningsustainabilitySupersession and Precedence of PPS 15
NI-wide·PPS 15 Planning and Flood Risk (Revised)
The policies of this Statement will supersede the existing PPS 15, published in June 2006. The policies of this Statement will also take precedence over the provisions of existing development plans in
flood-riskIntroduction - Background to Flood Risk in Northern Ireland
1.0, 1.1, 1.2NI-wide·PPS 15 Planning and Flood Risk (Revised)
Flooding is a natural phenomenon that cannot be entirely prevented. There are four main sources of flooding. Flooding from rivers or fluvial flooding occurs when the channel capacity is exceeded and f
flood-risksite-planningFlood Risk Extent in Northern Ireland
1.3NI-wide·PPS 15 Planning and Flood Risk (Revised)
There is widespread potential in Northern Ireland for localised flooding. Significant flood events have occurred in the recent past. A description of these and some major historical flood events is co
flood-riskcoastalsite-planningClimate Change and Flood Risk
1.4NI-wide·PPS 15 Planning and Flood Risk (Revised)
Climate change predictions of rising global temperatures will be accompanied by sea level rise, an increase in overall winter precipitation and an increase in intensity and duration of extreme rainfal
flood-risksite-planningclimate-changeEuropean Floods Directive and Implementation
1.5NI-wide·PPS 15 Planning and Flood Risk (Revised)
The significant increase in the incidence of flood events across Europe and the associated impacts led to the adoption by the European Parliament of the Floods Directive ("The Assessment and Managemen
flood-riskPlanning System Role in Flood Risk Management
1.6NI-wide·PPS 15 Planning and Flood Risk (Revised)
The Directive confirms that development and other man-made changes to the environment can exacerbate the consequences of flooding. Accordingly, one of the Directive's outcome measures relates to flood
flood-risksite-planningdevelopmentScope and Primary Aim of PPS 15
1.8NI-wide·PPS 15 Planning and Flood Risk (Revised)
This revised PPS 15 is focused on the role of the land use planning system in the management of flood risk. It has been brought forward in line with a commitment to review the policy within 5 years in
site-planningflood-riskNatural Flood Risk Management and Sustainable Drainage
1.7NI-wide·PPS 15 Planning and Flood Risk (Revised)
There is also growing awareness of the potential role of the planning system in natural flood risk management at catchment scale and also in local flood adaptation such as facilitating sustainable dra
site-planningflood-riskdrainageEmployment Land and Flood Risk Avoidance
RG 1NI-wide·PPS 15 Planning and Flood Risk (Revised)
Employment land should avoid, where possible, areas at risk from flooding (RG 1).
commercialindustrialflood-riskUrban and Rural Renaissance Development in Flood Risk Areas
RG 7NI-wide·PPS 15 Planning and Flood Risk (Revised)
The redevelopment of land for urban and rural renaissance should avoid, where possible, areas that are at risk from flooding (RG 7).
site-planningflood-riskHousing Growth and Flood Risk Management
RG 8NI-wide·PPS 15 Planning and Flood Risk (Revised)
Housing growth should be managed so that it mitigates the risk of flooding by avoiding those areas known to be at risk (RG 8).
dwellingflatsflood-riskPrecautionary Approach to Development in Flood Risk Areas
RG 9NI-wide·PPS 15 Planning and Flood Risk (Revised)
Minimising development in areas at risk from flooding - a precautionary approach to development in areas of flood risk should be exercised using the latest flood risk information that is available (RG
site-planningflood-riskSustainable Flood Risk Management and SuDS
RG 12NI-wide·PPS 15 Planning and Flood Risk (Revised)
Promoting a more sustainable approach to flood risk management, including encouraging the greater use of Sustainable Drainage Systems (SuDS) (RG 12).
drainageflood-riskEU Floods Directive transposition and competent authority
2.10NI-wide·PPS 15 Planning and Flood Risk (Revised)
The European Directive on the Assessment and Management of Flood Risks came into force in November 2007 and was transposed into local legislation by The Water Environment (Floods Directive) Regulation
site-planningflood-riskKey milestones in Floods Directive implementation
2.11NI-wide·PPS 15 Planning and Flood Risk (Revised)
Key milestones towards the implementation of the Floods Directive include the following: • Publication of the Strategic Flood Maps for Northern Ireland in November 2008. These maps identify the predic
site-planningflood-riskcoastalFlood Risk Management Plans and River Basin Districts
2.12NI-wide·PPS 15 Planning and Flood Risk (Revised)
Flood Risk Management Plans (FRMPs) are due to be published by December 2015. The FRMPs will apply to each of the three main River Basin Districts in Northern Ireland, namely North Eastern, Neagh-Bann
site-planningflood-riskFlood Risk Management Plan Themes
2.13NI-wide·PPS 15 Planning and Flood Risk (Revised)
The FRMPs focus on 3 main themes, as follows: PREVENTION • The avoidance of, where possible, new development in areas of flood risk, • Promoting appropriate land use, agriculture and forestry practice
flood-risksite-planningStormwater Management and Sustainable Drainage Systems Implementation
2.14NI-wide·PPS 15 Planning and Flood Risk (Revised)
In September 2011, Northern Ireland Environment Agency (NIEA) published the document "Managing Stormwater – A Strategy for Promoting the Use of Sustainable Drainage Systems (SuDS) within Northern Irel
drainageflood-risksite-planningReservoir Bill for Northern Ireland
2.16NI-wide·PPS 15 Planning and Flood Risk (Revised)
It is anticipated that a Reservoirs Bill, will be enacted in 2014/15. The legislation will introduce a risk based approach to the management of the potential flood risk from controlled reservoirs and
flood-risksite-planningProposed Floods Bill for Northern Ireland
2.17NI-wide·PPS 15 Planning and Flood Risk (Revised)
The development of a new Floods Bill for Northern Ireland is due to be progressed. The Bill will provide a wider range of duties and powers for the effective delivery of Flood Risk Management. These i
flood-riskdrainagestructuralDevelopment plan zoning and flood risk avoidance
4.4NI-wide·PPS 15 Planning and Flood Risk (Revised)
Development plans need to take account of the potential risks from all sources of flooding over the plan period and beyond as this is likely to influence decisions on such matters as the zoning of lan
site-planningflood-riskresidentialeconomic-developmentFlood risk in settlement limits and new settlements
4.5NI-wide·PPS 15 Planning and Flood Risk (Revised)
Flood risk may also be an important consideration in the definition of settlement limits and in the designation of new settlements.
site-planningflood-riskCross-boundary flood risk implications
4.6NI-wide·PPS 15 Planning and Flood Risk (Revised)
In addition, development plans may also need to consider the potential implications of flood risks beyond the Plan area. This may be necessary where: a) development in locations beyond the Plan area h
site-planningflood-riskFlood risk management consultation and EU Floods Directive linkages
4.7NI-wide·PPS 15 Planning and Flood Risk (Revised)
In discharging all of these functions relating to flood risk management, local development plans need to make the necessary linkages with and to be informed by the existing and emerging body of inform
site-planningflood-riskStrategic Flood Maps and flood information resources
4.8NI-wide·PPS 15 Planning and Flood Risk (Revised)
The multi-layered Strategic Flood Maps, available on the "nidirect" website http://www.dardni.gov.uk/riversagency/index/rivers/flood-maps-ni.htm provide information on flood defences; historical flood
flood-riskcoastalConsultation with Rivers Agency on flood risk management
4.9NI-wide·PPS 15 Planning and Flood Risk (Revised)
There should also be consultation with Rivers Agency from an early stage on strategic issues relating to flood risk management throughout the Plan area and beyond. Ongoing consultation with Rivers Age
site-planningflood-riskStrategic flood risk information and climate change considerations
4.10NI-wide·PPS 15 Planning and Flood Risk (Revised)
The strategic flood risk information and advice provided by Rivers Agency at development plan preparation stage will take account of the latest information on flood risk. This will not only include th
site-planningflood-riskPrecautionary approach to flood risk in development plans
4.11NI-wide·PPS 15 Planning and Flood Risk (Revised)
Development Plans will apply a precautionary approach to development in areas that may be subject to flood risk presently or in the future as a result of climate change predictions. Consequently, deve
site-planningflood-riskReview of existing development plans for flood risk
4.12NI-wide·PPS 15 Planning and Flood Risk (Revised)
As part of the precautionary approach, the planning authority may also need to review extant development plans with a view to addressing flood risk issues which may only have been identified relativel
site-planningflood-riskSustainable Flood Management in Development Plans
4.13NI-wide·PPS 15 Planning and Flood Risk (Revised)
Development plans have a role to play in furthering a more sustainable approach to flood management. This includes a number of measures such as:- • Flood avoidance through the careful selection of hou
site-planningdrainageflood-riskGreen Infrastructure and Flood Plains Protection
4.14NI-wide·PPS 15 Planning and Flood Risk (Revised)
Floodplains and other land important for flood storage or conveyance or sustainable drainage, within or adjacent to settlements can often form important strategic networks of green and / or blue space
site-planningdrainageflood-riskopen-spaceconservationPlanning for Storm Exceedance in Development Sites
4.15NI-wide·PPS 15 Planning and Flood Risk (Revised)
Development plans can reduce flood risk to vulnerable development (existing or proposed) through planning for storm exceedance. For example, within a site zoned for housing or economic development, th
site-planningflood-riskdwellingSustainable Drainage Schemes in Development Plans
4.16NI-wide·PPS 15 Planning and Flood Risk (Revised)
Development plans can support the use of SuDS as the preferred option for surface water drainage in the Plan area. For example, measures such as the
drainageflood-risksite-planningFlood Risk as a Material Consideration
5.1NI-wide·PPS 15 Planning and Flood Risk (Revised)
The susceptibility of all land to flooding is a material consideration in the determination of planning applications. New development may be directly at risk from flooding from a number of sources and
flood-risksite-planningPre-Application Stage: Flood Risk Assessment Requirements
5.2NI-wide·PPS 15 Planning and Flood Risk (Revised)
The onus rests on the developer/applicant to identify and assess the potential for flood risk to their proposed development by referring to the Strategic Flood Map. Information and guidance is availab
flood-risksite-planningdrainageDetermination of Planning Applications – Use of Flood Risk Information
5.3NI-wide·PPS 15 Planning and Flood Risk (Revised)
All planning applications, including those for the renewal of planning permission, will be determined with reference to the most up to date flood risk information available to the planning authority.
site-planningdrainageflood-riskConsultation on Flood Risk and Drainage in Planning Applications
5.4NI-wide·PPS 15 Planning and Flood Risk (Revised)
The planning authority will consult Rivers Agency on planning applications in a number of circumstances, where it appears, on the basis of prevailing information, that flood risk or inadequate drainag
site-planningdrainageflood-riskCircumstances Requiring Consultation with Rivers Agency and Other Bodies
5.5NI-wide·PPS 15 Planning and Flood Risk (Revised)
DARD Rivers Agency (and other organisations such as NI Water and / or DRD Transport NI in regard to surface water flooding) will normally be consulted in the following circumstances: • where, exceptio
site-planningdrainageflood-riskcoastalCircumstances requiring consultation on flood risk
NI-wide·PPS 15 Planning and Flood Risk (Revised)
• where a proposed development is located in an area where there is a known history of surface water flooding, • where a proposal is of a size or nature that could significantly increase surface water
flood-riskdrainagesite-planningFlood risk assessment for building alterations or extensions
5.6NI-wide·PPS 15 Planning and Flood Risk (Revised)
Generally, applications to extend or alter individual buildings are unlikely to increase flood risk elsewhere and therefore consultation with Rivers Agency is largely unnecessary. However it is still
flood-risksite-planningPermitted Development and Flood Risk
5.7NI-wide·PPS 15 Planning and Flood Risk (Revised)
For larger developments (ie those that require an assessment of flood risk or drainage), it may be necessary to consider the removal of permitted development rights. This may also be appropriate in a
site-planningflood-riskdrainageEnvironmental Impact Assessment and Flood Risk
5.8NI-wide·PPS 15 Planning and Flood Risk (Revised)
For certain types of project an Environmental Assessment determination will be made under the Planning (Environmental Impact Assessment) Regulations (Northern Ireland) 2012. In such cases the planning
site-planningflood-riskdrainagePolicy FLD 1: Development in Fluvial and Coastal Flood Plains - General Prohibition
Policy FLD 1NI-wide·PPS 15 Planning and Flood Risk (Revised)
Development will not be permitted within the 1 in 100 year fluvial flood plain (AEP of 1%) or the 1 in 200 year coastal flood plain (AEP of 0.5%) unless the applicant can demonstrate that the proposal
flood-risksite-planningcoastalfluvialFlood Risk Assessment Requirements
Policy FLD 1NI-wide·PPS 15 Planning and Flood Risk (Revised)
Where the principle of development is accepted by the planning authority through meeting the 'Exceptions Test', as set out below under the Exceptions heading, the applicant is required to submit a Flo
flood-risksite-planningException: Defended Areas - Previously Developed Land
Policy FLD 1 - Exceptions - Defended AreasNI-wide·PPS 15 Planning and Flood Risk (Revised)
a) Development of previously developed land protected by flood defences that are confirmed by DARD, as the competent authority, as structurally adequate and provide a minimum standard of 1 in 100 year
flood-risksite-planningcoastalfluvialException: Undefended Areas - Raised Land in Coastal Settlements
Policy FLD 1 - Exceptions - Undefended AreasNI-wide·PPS 15 Planning and Flood Risk (Revised)
b) New development within settlements in the coastal floodplain where the land is raised (through infilling), to an acceptable level above the flood plain and subject to meeting all of the following c
flood-risksite-planningcoastalExceptions to Flood Plain Development Policy - Replacement Buildings
c)NI-wide·PPS 15 Planning and Flood Risk (Revised)
Replacement of an existing building. • Proposals that include essential infrastructure or bespoke accommodation for vulnerable groups or that involve significant intensification of use will not be acc
flood-risksite-planningExceptions to Flood Plain Development Policy - Agricultural and Utility Infrastructure
d)NI-wide·PPS 15 Planning and Flood Risk (Revised)
Development for agricultural use, transport and utilities infrastructure, which for operational reasons has to be located within the flood plain.
flood-risksite-planningagriculturalExceptions to Flood Plain Development Policy - Water Compatible Development
e)NI-wide·PPS 15 Planning and Flood Risk (Revised)
Water compatible development such as for boat mooring, navigation and water based recreational use, which for operational reasons has to be located within the flood plain.
flood-risksite-planning