Mayo development plan
The Mayo County Development Plan 2022-2028 (as varied) sets the rules Mayo County Council uses to decide planning applications. Here is what it controls, the local rules that matter to householders, and where to read the official plan.
The plan at a glance
- Plan
- Mayo County Development Plan 2022-2028 (as varied)
- Period
- 2022 to 2028
- Status
- Adopted 29 June 2022, in effect from 10 August 2022. Variation No. 1 made 8 December 2025
- Checked
- 29 Oct 2026
A draft Ministerial Direction on rural housing was issued in August 2022. We could not find its outcome.
What a development plan controls
Every council has one. It is written for a set number of years and changed in steps called variations. It covers four things that matter most to a homeowner.
Every piece of land has a zoning, such as residential, town centre or agriculture. The zoning says what can be built there. An extension is usually fine in a residential zone. A new house on land zoned for agriculture usually is not, unless a rural housing rule allows it.
Outside towns and villages, the plan decides who can build a one-off house. Councils often ask for local ties, such as family land or years of living in the area, and may attach an occupancy condition.
The plan uses flood zones. New homes in Flood Zone A or B can face a justification test and a flood risk assessment. The official flood maps are on floodinfo.ie.
The plan lists protected structures and architectural conservation areas. If your home is in one, works that are normally exempt may need permission. You can ask the council for a declaration under section 57.
Key local policies in Mayo
Plain-English summaries of rules in the Mayo County Development Plan 2022-2028 (as varied) that often decide a householder's project. Each one links to the council's own text.
Building a house in the countryside
Who can build a one-off rural house, and the conditions that come with it.
In Mayo's rural areas under strong urban influence (around the larger towns), you must show a social or economic link to the area where you want to build. This includes farmers and their sons and daughters, relations of non-farming people who lived in the area, returning emigrants, people in farming or local employment, and people with health needs that require them to live in a particular place. The 'local rural area' includes, but is not limited to, the parish, electoral division and townlands. An occupancy clause is attached to permissions.
Source: Volume 1, Chapter 3, Objective RHO 1 and Map 3.1In rural areas not classed as under strong urban influence, there is a presumption in favour of single houses in the countryside, based on siting and design rules. The exceptions are Mayo's scenic routes, scenic views, coastal areas and lakeshores, where you must show a clear need or long-standing social link to the area, and that the house will not harm the character of the area and cannot go elsewhere.
Source: Volume 1, Chapter 3, Rural Housing Objectives, RHO 2 to RHO 4Extensions, attics and garden rooms
The design rules the council uses when it looks at work on an existing home.
Replacing or reusing an existing house or building such as a church or schoolhouse does not need a housing-need test. Demolishing traditional rural houses is discouraged and only considered where a structural engineer shows it cannot be made sound. Extensions must suit the siting, size, design and materials of the existing house. Granny flats and similar ancillary buildings are considered on their merits under the Development Management Standards, and multi-generational housing is supported.
Source: Volume 1, Chapter 3, Rural Housing Objectives RHO 8 to RHO 12Summaries checked 29 Oct 2026. They are plain-English guides written from the council's plan. They may be incomplete or out of date, and a variation can change the wording. They are not legal advice, so please check anything important with the council.
How it affects your project
The plan matters most when a project needs planning permission. Many small jobs are exempt, so check that first.
Many small extensions are exempt, so the plan only counts if you need permission, or your home is protected, or an earlier permission has conditions. When permission is needed, the council checks the design against the plan, for example overlooking, daylight and the garden left. See the Mayo extension rules. Read the extension guide.
Small sheds are often exempt. A garden room used as a separate home, or a large one close to a boundary, can need permission, and then the plan's rules on extra accommodation apply. Read the shed guide.
A new house needs land where the zoning allows it. In the countryside, the rural housing rules decide who can build. Flood zones, access and wastewater also count. See the Mayo rural housing rules. Read the new house guide.
Where to read the official plan and map
Always check the council's own copy. Plans are varied from time to time, and the zoning map is the legal record of how your land is zoned.
Check your Mayo site before you apply
The pre-planning report covers zoning, protected structures, ground conditions and every application near your address, with the decisions.
Common questions about the Mayo development plan
What is the Mayo development plan?
The Mayo County Development Plan 2022-2028 (as varied) is the main planning policy document for Mayo County Council. It covers 2022 to 2028 and sets the zoning of land and the local rules the council uses when it decides planning applications.
Where can I see the zoning for my land in Mayo?
Zoning maps are part of the plan. Open the plan on the Mayo County Council website, or use the national viewer at myplan.ie, which shows zoning for councils that have supplied it. Plans can be varied between full reviews, so check the council's own copy for the latest.
Does the Mayo development plan matter if my project is exempt?
If your extension or shed is exempt development, you do not need planning permission, so the council does not assess it against the plan. The plan still matters if your home is a protected structure or in a conservation area, or if an earlier permission has conditions. Our free checker screens your project.
Can I build a house on family land in Mayo?
It depends on the rural housing rules in the plan and on exactly where the site is. Councils usually ask for proof of local ties and attach an occupancy condition. The summaries on this page show what the Mayo plan says, and the council's pre-planning meeting is the best way to test your case.
Plan details compiled from Mayo County Council's own website, source page, checked 29 Oct 2026. This page is a guide, not legal advice. Sources and methodology.