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Northern Ireland planning policy and building regulations — searchable, and answerable, scoped to your project.
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Rivers as environmental assets and flood risk considerations
2.79Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
The rivers that run through our Borough are important environmental assets and resources, but they are also a source of flood risk. This will be an important consideration in identifying future develo
flood-risksite-planningclimate-resiliencePrecautionary approach to flood risk
13.6Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
In line with the provisions of regional policy, the Council will adopt a precautionary approach to the consideration of flood risk from all potential sources of flooding. This aims to prevent future d
site-planningflood-riskManaging floodplains and sustainable design for water management
13.7Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
To make space for water, minimise risk and help maintain their natural function, the Council will seek to avoid development in flood plains wherever possible, as well as encouraging sustainable design
site-planningflood-riskdrainageFlood risk information and assessment requirements
13.8Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
In order to properly manage development, the Council will use the latest flood risk information and maps available from DfI Rivers and will require detailed information in the form of FRAs and DAs to
site-planningflood-riskdrainageExceptions to flood plain development restrictions
DM 46.1Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
The use of land for sport and outdoor recreation, amenity open space or nature conservation purposes, including ancillary buildings (but excluding club houses/social facilities and children's playgrou
site-planningflood-risksportrecreationmineral-extractionFlood risk management and mitigation measures
DM 46.2Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
In exceptional circumstances, where development proposals are considered acceptable in principle within a flood plain, adequate measures to manage and mitigate flood risk will be required. These shoul
site-planningflood-riskLand raising in flood plains
DM 46.3Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Land raising operations, which involve the permanent elevation of a site to a level above the flood plain in order to facilitate development, will not be acceptable in river flood plains. Land raising
site-planningflood-riskcoastalerosionFlood defences and compensation storage
DM 46.4Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Other flood protection/management measures involving new flood defences or flood compensation storage works affecting a flood plain, will not be acceptable unless these are proposed to be undertaken b
site-planningflood-riskDefinition of Flood Plains
13.19Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Flood plains are the generally flat areas adjacent to watercourses or the sea where water flows in time of flooding or would flow but for the presence of flood defences. The extent of a flood plain is
site-planningcoastalflood-riskFlood Risk Information and Developer Responsibility
13.20Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Current information on fluvial and coastal flood plains, including information on flood defences, is available on the DfI Flood Maps NI Interactive Map Viewer. This information is regularly updated, a
site-planningflood-riskFlood Risk Assessment Requirements
13.21Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Planning applications in identified flood risk areas must be accompanied by an assessment of the flood risk in the form of a FRA, which should be carried out by a suitably qualified professional. A FR
site-planningflood-riskFlood Defence Methods
13.22Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
New hard engineered or cored earthen bank flood defences, publicly funded and constructed, are seen as a necessary and acceptable flood mitigation method to protect existing property that is already i
site-planningflood-riskFlood Plain Development and Land Raising
13.22Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
defence works or flood storage compensation schemes proposed by a developer, will not be acceptable as justification to allow development in a flood plain to proceed. Exceptionally land raising may be
coastalflood-risksite-planningConsultation with DfI Rivers on Flood Risk
13.23Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
The Council will consult with DfI Rivers as the competent authority responsible for flood risk on all applications within or close to flood plains and take account of its advice and recommendations in
flood-risksite-planningSurface Water Drainage and Sustainable Drainage Systems (SuDS) - Policy Context
13.24-13.26Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
The aim of this policy is to reduce flood risk for new developments from surface water (pluvial) sources. This aim has taken account of and is consistent with the provisions of the SPPS. Surface wate
drainageflood-risksite-planningDM 47.2 - Drainage Assessment Requirements
DM 47.2Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
A DA proportionate to the development proposed must accompany planning applications in the following circumstances: (a) Development proposed in an area where there is evidence of a history of surface
drainageflood-risksite-planningSurface water flooding and development
13.27Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
The Council will only permit development in areas where there is evidence of surface water flooding, when the developer is able to demonstrate through a DA, that the flood risk can be effectively cont
drainageflood-risksite-planningEarly consideration of drainage in site evaluation
13.28Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
The Council encourages all developers to consider drainage issues early in the site evaluation and planning process, not just at the detailed design stage of a development. Development proposals shoul
drainageflood-risksite-planningSuDS schemes and managing surface water flow
13.29Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Hard, impermeable surfaces result in the rapid transfer of water during periods of rainfall which can result in drainage infrastructure being overwhelmed. SuDS schemes are designed to 'slow the flow'
drainageflood-riskSuDS design techniques and early incorporation
13.30Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Developers should consider the incorporation of SuDS as early as possible in the design process, whilst appropriate techniques may include such solutions as green roofs, permeable surfaces, oversized
drainageflood-riskexternal-spacePlanning application requirements for SuDS proposals
13.31Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Planning applications will be expected to be accompanied by an appropriate level of detail to ensure that proposals for SuDS are capable of practical implementation and where acceptable, the Council w
drainageflood-risksite-planningReservoir Flood Risk - Policy Rationale
13.32-13.34Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
The aim of this policy is to minimise potential flood risk for developments in close proximity to controlled reservoirs. This aim has taken account of and is consistent with the provisions of the SPPS
site-planningflood-riskReservoir Flood Risk - Development Permissions
DM 48.1Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
The Council will permit development proposals within the potential flood inundation area of a controlled reservoir (as defined in the Reservoirs Act (NI) 2015) where it is satisfied, in consultation w
site-planningflood-riskReservoirs without Condition Assurance - Permitted Development
DM 48.2Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
In cases where assurance on the condition, management and maintenance regime of the relevant reservoir cannot be demonstrated the development will only be permitted in the following circumstances: (a)
flood-riskreservoirsite-planningReservoir Flood Risk Assessment Requirements
DM 48.3Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Where a reservoir FRA is deemed necessary this will need to set out suitable measures to manage and mitigate the identified flood risks, including details of emergency evacuation procedures.
flood-riskreservoirRestrictions on Vulnerable and Essential Development near Reservoirs
DM 48.4Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Within the entire flood inundation area of a reservoir without condition assurance, there will also be a presumption against bespoke development for vulnerable groups (such as schools or sheltered acc
flood-riskreservoirpublic-buildingControlled Reservoirs Information
13.35Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Details of Controlled Reservoirs in the Borough are available on Reservoir Flood Maps produced by DfI Rivers and are available to view on its website. These provide the location of each Controlled Res
flood-riskreservoirsite-planningDevelopment in Controlled Reservoir Inundation Areas
13.36Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Development within the inundation area of a controlled reservoir will be acceptable in cases where certification has been provided from a competent reservoirs engineer that the condition, management a
flood-risksite-planningdrainageFlood Risk Assessment in Reservoir Inundation Areas
13.37Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
It should be noted that where FRA is undertaken to accompany proposals in the flood inundation area of a reservoir without condition assurance development will not be permitted in those areas where th
flood-risksite-planningdrainagePolicy Aim for Artificial Modification of Watercourses
13.38Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
The aim of this policy is to minimise the potential flood risk impact and adverse consequences for the environment associated with the modification of watercourses. This aim has taken account of and i
flood-riskdrainageenvironmentalArtificial Modification of Watercourses - Environmental Impact
13.39Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
The artificial modification of watercourses through culverting or canalising is widely accepted as an environmentally unsustainable practice, as such operations will often adversely impact upon the la
flood-riskdrainageenvironmentalprotection-from-floodingAcceptability of Watercourse Modification Proposals
13.40Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Such proposals run contrary to the Council's aim of making space for water and will therefore only be acceptable in exceptional circumstances.
flood-riskdrainageenvironmentalPolicy SP10: Environmental Resilience & Protection
Policy SP10Antrim and Newtownabbey·LDP 2030 Plan Strategy (adopted 2025)
Minimise flood risk in new development. Increased recycling of waste. Increased use of sustainable drainage systems (SuDS) as the preferred method of treating surface water for new development proposa
drainageenvironmental-resilienceflood-risksite-planning