Planning applications · Knocklyon, Dublin
Planning applications in Knocklyon: 500 in three years, 8 large schemes
500 planning applications were lodged within 2 km of the centre of Knocklyon in the last three years, 8 of them for ten homes or more (992 units). Here they are, and what to check around a specific house.
500
planning applications within 2 km of the centre since 2023
8
of them for 10 homes or more
992
residential units in those large applications
What is being proposed in Knocklyon
The largest recent applications within 2 km of the centre, from the national planning register:
- 11 units, lodged 2026-05, decision (South Dublin County Council): (a) Demolition of existing house 'Vista Montana'; (b) construction of 11 no. 3-storey houses consisting of 1 detached 5-bed and 10 semi-detached 4-bed units; (c) new access road with raised crossing at entrance off Firho
- 29 units, lodged 2026-03, unregistered application (South Dublin County Council): The proposed development is comprised of 29 homes and all associated open spaces and all site and development works necessary to facilitate the proposed development and will include: i. Construction of 8 No. three-storey
- 502 units, lodged 2025-08, appeal decided (South Dublin County Council): The proposed development will consist of 502 no. residential units (108no. 1-bed, 170no. 2-bed, 162 no. 3-bed; 62 no. 4-bed) comprising 197no. 2 storey houses (terraced/semi-detached/detached) (19no. 2-bed, 116no. 3-bed;
- 75 units, lodged 2024-04, final grant (South Dublin County Council): Construction of 75 no. residential units in a mix of apartments, terraced housing and duplex apartment units comprising; an apartment building (Block A, c. 2,518 sq. m GFA), varying in height between 3 and 4 storeys and
- 85 units, lodged 2024-02, decision (South Dublin County Council): Demolition of the Speaker Connolly Public House including the part single part two storey public house, and ancillary stores and structures (c. 411sqm), on a development site of 0.323 Hectares (overall site area 0.332 Ha
- 100 units, lodged 2024-02, appeal decided (South Dublin County Council): Demolition of all existing structures on site, including the 2 storey building formally used as public house ancillary off-licence & associated structures on the east of the site; a 2-storey building comprising an existi
A count for the whole town says how busy the planning office is. What matters for a purchase is the 300 m around the house: the field behind it, the corner site, the neighbour’s attic conversion. That is what the report lists, with the decision and the appeal status for each file.
What to check before you bid
Three things. First, permissions granted but not yet built near the house: the register shows them, the street does not. Second, whether the house itself has a planning file: an extension without permission is a title problem your solicitor has to fix before closing. Third, the zoning in the development plan for the fields around it. The report covers all three for one Eircode.
Check one house in Knocklyon
The area tells you the odds. The report tells you about the house.
Enter the Eircode. The free snapshot shows which of the twenty-nine checks flag up. The full report (€24.99, one house, no account) lists every planning application within 300 m of the house with status, decision and appeal, checks the property's own planning and building-control file, and shows the zoning of the land around it.
Or read the sample report first: a real house, 16 pages.
Also for Knocklyon
Questions people ask
- How do I check planning applications near a house in Knocklyon?
- The national planning register (nationalplanningapplications.ie) maps every application since about 2010. Search the address, then look at the streets around it, not only the plot. Applications within 300 m are the ones that change your view, your light and your parking. The report lists them for the exact Eircode with status and decision.
- Is a lot being built in Knocklyon?
- 500 applications were lodged within 2 km of the town centre in the last three years, 8 of them for ten or more homes (992 units in total). That is an active pipeline: expect construction traffic and new estates on the edge of town.
- Does a planning application nearby affect the price?
- A granted permission for a large scheme next door can cut what a house is worth and can also mean two years of noise. It can also raise prices if it brings a school or a shop. Read the description, the decision and the appeal status. The report gives you that for everything within 300 m.
Sources
Area figures, compiled from public records. They describe the town or county, not any one house. The paid report checks the exact Eircode.