Regulations ROI & NI

Construction work must be done in accordance with the current statutory (mandatory) regulations: Planning Regulations, Building Control Regulations (which include the Building Regulations), and Health & Safety Regulations. The Republic of Ireland (ROI) and Northern Ireland (NI) each have their own sets of regulations.

The first statutory requirement when building a house is to secure planning permission. You must submit your full house plans to your local authority (city or county council) for approval. This involves a fee and paperwork. Some extensions are exempt from applying for planning permission, as are most renovation projects. Listed buildings often require planning permission for all type of work on them. Check with your local authority if you are exempt before proceeding with any work with what’s known as a Section 5 Declaration in ROI or a Certificate of Lawful Development in NI.

Once the plans have been approved, they must be converted to construction drawings that comply with the Building Regulations, whether or not you had to get planning permission. The Building Regulations are there to ensure the house you build, extend or significantly renovate, is built to a safe standard, is accessible, and is energy efficient. Building Control regulations enforce that the Building Regulations are put into practice.

Health and safety (H&S) regulations, meanwhile, are there to ensure that the building site is a low risk environment for persons doing work or supervising it, and for those supplying materials or equipment.

ROI Planning regulations

When building in the countryside, the applicable zoning laws for your area are contained within the County Development Plans (CDPs). These are updated periodically, usually every six yearsCities and towns will have a Local Area Plan. Zoning relates to what areas the council deems acceptable for what type of development, and under what conditions. Rural Design Guides are often issued by local authorities, often within the CDP as is the case for DonegalMeath or Laois for example. The first council to publish a design guideto great acclaim, was Cork County Council. These guidelines will give you an indication of what type of house and finishes are acceptable to the planners. The list of CDPs are below along with some of the Rural Design Guides; you can also access them here in an interactive map.

In January 2021 the Office of the Planning Regulator (OPR) in conjunction with the Department of Housing, Local Government and Heritage published a series of planning leaflets; one relates to securing planning permission for building a house. The full list is available here.

Tipperary County Council has published a cluster housing policy document in December 2018, which indicates new one-off houses in the countryside should be built in a group, wherever possible. 

Carlow County Council (2015-2021) 

Cavan County Council (2014-2020) 

Cavan Rural Design Guide (2011) 

Clare County Council (2017-2023) 

Clare Rural Design Guide (2005) 

Cork County Council (2014-2021) 

Cork Rural Design Guide (2010) 

Donegal County Council (2018-2024) 

Dún Laoghaire-Rathdown (2016-2022) 

Fingal County Council (2017-2023) 

Galway County Council (2015-2021) 

Galway Rural Design Guide (2005)  

Kerry County Council (2015-2021) 

Kerry Rural Design Guide (2009) 

Kildare County Council (2017-2023) 

Kilkenny County Council (2014-2020)  

Kilkenny Rural Design Guide  

Laois County Council (2017-2023) 

Leitrim County Council (2015-2021) 

Longford County Council (2015-2021) 

Louth County Council (2015-2021) 

Mayo County Council (2014-2020) 

Mayo Rural Design Guide (2008) 

Meath County Council (2013-2019) 

Monaghan County Council (2019-2025) 

Monaghan Draft Design Guide (2008) 

Offaly County Council (2014-2020) 

Offaly County Council Designing Houses Creating Homes (2008)  

Roscommon County Council (2014-2020) 

Roscommon Rural Design Guidelines  

Sligo County Council (2017-2023) 

South Dublin County Council (2016-2022) 

Tipperary County Council (2009/2010 with amendments) 

Westmeath County Council (2014-2020) 

Westmeath Rural House Design Guidelines (2005) 

Wexford County Council (2013-2019) 

Wicklow County Council (2016-2022) 

Single Rural Houses Design Guidelines for New Homes in Rural Wicklow 

Limerick City and County Council (2010-2016)  

Waterford City and County Council (2013-2019) 

Dublin City Council (2016-2022) 

Cork City Council (2015-2021) 

Galway City Council (2017-2023) 

The application fee for building a house is usually €65, and €34 for an extension. Once your application is approved, the council will ask that you pay a development levy (known as a contribution) before starting work on the house; this amount can be considerable (thousands of euros) and will vary depending on the local authority, the size of your house, and where you are building exactlyAsk your local authority at the planning application stage how much your levy is likely to be. 

NI Planning regulations

All of NI’s countryside development policy is contained within PPS21: Sustainable Development in the Countryside (June 2010)review of the policy document was published in 2013plans are underway to allow local authorities to come up with their own Local Development Plans for their local area. There are 11 local authorities in NI. 

Guiding the assessment of your application will include other policy documents, namely the Regional Development Strategy (RDS) 2035Strategic Planning Policy Statement (SPPS) (2015) and PPS3: Access, Movement and parking (2005 / 2006)You must also consult any relevant area plans (spatial policy)and policies in relation to your site if it is located in an Area of Outstanding Natural Beauty or in a Conservation Area. 

For guidance on what the planners think is suitable to build in the countryside, consult the supplementary design guide called Building on Tradition. A Sustainable Design Guide for the Northern Ireland Countryside (2012). 

Planning application fees for building a new home is £868 and for an extension, £291. Once your application is approved, the council will ask that you pay a development levy (known as a contribution) before starting work on the house; this amount will vary depending on the local authority, the size of your house, and where you are building exactly. Ask your local authority at the planning application stage how much your levy is likely to be. 

ROI Building Regulations

The technical guidance documents (TGD) are the reference documents to consult, as published by the Department of Housing, Planning and Local Government. These refer to established standards and protocols. 

Part A: Structure (2012 edition)  

Part B: Fire (2017 edition) with supplementary guidance 

Part C: Site preparation and resistance to moisture (1997 edition, reprint 2005) 

Part D: Materials and workmanship (2013 edition)for nonstandard products Agrément Certificates can be found on the National Standards Authority of Ireland (NSAI) website  

Part E: Sound (2014 edition) 

Part F: Ventilation (2019 edition); check the NSAI website for independent third party ventilation certifiers  

Part G: Hygiene (2008 edition, reprint 2011for bathrooms, kitchens and washing facilities  

Part H: Drainage and waste water disposal (2010 edition, reprint 2016including the NSAI’s S.R. 66:2015 in compliance with the EN 12566 series of standards. For details on what types of onsite wastewater treatment systems are possible, consult the Environmental Protection Agency’s Code of Practice: Wastewater Treatment Systems for Single Houses SR 66 specifies the design capacity for a dwelling based on the number of bedrooms rather than size. Scaling rules for increasing the plant size but maintaining the performance have also been introduced. Part H of the Building Regulations has been amended to make these requirements mandatory. Although many of the products on the market already comply to these requirements, some may not, so always check that the system you choose is fully compliant to the current regulations, which also include abiding to the EN 12566 standard and to the Environmental Protection Agency Code of Practice 2009. A regular maintenance regime will be put in place with your chosen supplier to ensure the system works as intended over time.  

Part J: Heat producing appliances (2014 edition) for the safe combustion of fuel, and fuel storage 

Part K: Stairways, ladders, ramps and guards (2014 edition)  

Part L: Conservation of fuel and energy in dwellings (2019 edition)check the NSAI website for cavity wall and external wall certified installers and for airtightness installers  

Part M: Access and use (2010 edition)also consult guidance from the Centre for Excellence in Universal Design 

NI Building Regulations
ROI Building Control regulations

The Building Control Regulations (1997-2018) provide the legal basis for enforcing the building regulations and your obligations as a homeownerROI’s 31 Local Authorities are designated as Building Control Authorities under the Building Control Acts 1990 to 2014. 

You will file all documents related to building control online, including declaring whether you wish to opt in our out of appointing an Assigned Certifier and filing your Commencement Notice (which costs €30)on the Building Control Management System. You must set up an account; how to videos are available here and an overview of the process here. Contact details for building control officers in local authorities is available here. 

For sample inspection schedules, the Code of Practice for Inspecting and Certifying Buildings and Works (2016) is an excellent guide. 

NI Building Control regulations

As per the Building Regulations (NI) Order 1979, the Department of Finance and Personnel (DFP) is responsible for the development and the implementation of policy and legislation relating to the Building Regulations for Northern Ireland. Building Control Northern Ireland is a voluntary umbrella grouping of the Building Control Departments of the eleven local councils. 

You must submit an application with your local authority’s Building Control Department if you are building or extending, but also if you are upgrading any aspect that relates to the Building Regulations, e.g. upgrading the insulation in your home, changing your central heating, changes to mains powered smoke detectors, etc.  

There are two types of applications: the Full Plans Application (required for a new house) and Building Notice Application (used for extensions less than 10sqm in floor area, converting a loft within a dwelling if less than 3sqm in floor area, etc.) 

Contact the Building Control Service in the first instance to get the application form and guidance on the process. Application forms for each of the councils are listed below. 

Antrim and Newtownabbey Borough Council 

Ards and North Down Borough Council 

Armagh City, Banbridge and Craigavon Borough Council 

Belfast City Council 

Causeway Coast and Glens Borough Council 

Derry City and Strabane District Council 

Fermanagh and Omagh District Council 

Lisburn and Castlereagh City Council 

Mid and East Antrim Borough Council 

Mid Ulster District Council 

Newry, Mourne and Down District Council 

Fees are payable on submission of applications and subsequent inspections of the work, as one-off payments. Under the Building Notice system, the plan and inspection fee are combined and are payable once the application is submitted. The lowest fees are for houses less than 250sqm in internal floor area; £90 to get the construction drawings approved, then £210 for the inspection fee (covers multiple inspections). Full details are available here. 

ROI Health & Safety regulations

The Health and Safety Authority has published Guide for Homeowners (2013) outlining your obligations in relation to appointing a Project Supervisor Design Stage and a Project Supervisor Construction Stage. These relate to the Safety, Health and Welfare at Work (Construction) Regulations 2013. For a list of what risks and measures will need to put in place, consult the website. 

Further reading: Guidelines on the Procurement, Design and Management Requirements of the Safety health and Welfare at Work (Construction) Regulations 2013 (Updated 2017) 

NI Health & Safety regulations

The Construction (Design and Management) Regulations (Northern Ireland) 2016 require that you notify the health and safety authorities of your project starting, with an NI10 formunless you carry out all the work yourself, in which case the project is classed as DIY and CDM 2016 does not apply. 

For a guide to CMD for self-builders, check out National Custom and Self Build Association’s guide. 

Domestic clients are people who have construction work carried out on their own home (or the home of a family member) that is not done as part of a business. CDM 2016 applies if the work is carried out by someone else on the domestic client’s behalf. 

The homeowner’s client duties are normally transferred to: the contractor for single contractor projects or the principal contractor for projects with more than one contractorHowever, the domestic client can instead choose to have a written agreement with the principal designer to carry out the client duties. 


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