Neighbourhoods · South Dublin · last 12 months · 49 electoral divisions

Where households extend most — South Dublin neighbourhoods

Data updated 3 Oct 2026 · register lag up to 7 days · sources & freshness

11.8

applications per 1,000 homes

52%

household works

16%

for work already done

13%

refused

21%

asked for more details

Busiest Extending Built first Refusals Slowest Further info Appeals Building 12 months 24 months

All Dublin Dublin City Dún Laoghaire-Rathdown Fingal South Dublin

Where households extend most 30 ranked

Share of applications that are extensions, attics, dormers, porches, garden rooms and the like.

#	Neighbourhood	household works	Applications	Households	Retention	Refused	Median days
1	Firhouse Village	85%	33	3,945	15%	7%	54
2	Palmerston Village	82%	28	1,451	21%	10%	54
3	Ballyboden	78%	27	1,797	7%	9%	49
4	Rathfarnham Village	78%	23	1,253	4%	5%	50
5	Rathfarnham-Ballyroan	75%	20	980	25%	0%	52
6	Rathfarnham-Hermitage	71%	21	1,581	24%	—	—
7	Lucan-Esker	70%	81	9,990	15%	13%	48
8	Templeogue-Kimmage Manor	67%	24	1,758	8%	4%	48
9	Terenure-Greentrees	66%	32	1,113	19%	15%	52
10	Rathfarnham-Butterfield	65%	23	1,226	22%	5%	49
11	Edmondstown	64%	25	1,916	8%	5%	52
12	Lucan-St. Helens	61%	90	5,363	9%	17%	49
13	Clondalkin-Moorfield	57%	23	2,283	43%	—	—
14	Terenure-Cherryfield	56%	25	885	4%	—	—
15	Firhouse-Knocklyon	55%	20	1,288	15%	—	—
16	Firhouse-Ballycullen	50%	32	3,313	12%	7%	50
17	Templeogue-Cypress	46%	28	983	29%	10%	41
18	Clondalkin Village	45%	31	3,201	19%	19%	54
19	Clondalkin-Ballymount	45%	22	629	9%	—	—
20	Tallaght-Kiltipper	45%	20	3,193	30%	—	—
21	Saggart	40%	30	1,791	27%	25%	51
22	Lucan Heights	39%	38	1,921	8%	14%	50
23	Clondalkin-Monastery	33%	54	3,933	19%	28%	48
24	Rathcoole	32%	31	2,172	23%	32%	42
25	Tallaght-Springfield	31%	36	3,831	6%	10%	52
26	Palmerston West	30%	23	2,230	22%	—	—
27	Tallaght-Kilnamanagh	30%	23	1,552	17%	17%	49
28	Newcastle	29%	59	1,814	12%	12%	53
29	Tallaght-Jobstown	29%	24	5,711	17%	—	—
30	Tallaght-Fettercairn	14%	28	3,471	4%	13%	45

Every council 30

#	Council	household works	Applications	Retention	Refused	Median days
1	South Dublin	52%	1,178	16%	13%	50
2	Dublin City	47%	2,408	15%	10%	55
3	Galway City	46%	351	27%	13%	55
4	Leitrim	43%	246	28%	5%	52
5	Sligo	39%	560	24%	7%	53
6	Kildare	37%	1,581	23%	20%	62
7	Wicklow	36%	1,376	20%	11%	54
8	Limerick	35%	1,454	21%	11%	56
9	Tipperary	34%	1,511	30%	5%	56
10	Dún Laoghaire-Rathdown	33%	1,935	11%	13%	52
11	Waterford	33%	1,144	21%	9%	55
12	Louth	33%	1,022	29%	13%	51
13	Roscommon	33%	700	23%	14%	102
14	Cork County	32%	3,386	22%	7%	66
15	Meath	32%	1,840	22%	15%	55
16	Clare	32%	1,212	22%	5%	55
17	Cavan	32%	791	23%	5%	64
18	Longford	32%	312	21%	15%	48
19	Kerry	31%	1,236	30%	11%	64
20	Kilkenny	31%	922	23%	6%	63
21	Westmeath	31%	706	22%	15%	55
22	Mayo	30%	1,342	20%	6%	59
23	Fingal	29%	1,608	21%	23%	54
24	Laois	29%	1,036	26%	7%	55
25	Donegal	28%	2,565	24%	7%	50
26	Carlow	28%	455	17%	10%	63
27	Monaghan	27%	662	18%	6%	100
28	Offaly	23%	870	22%	10%	64
29	Galway County	21%	1,977	24%	16%	54
30	Wexford	18%	1,262	26%	16%	54

How it is counted

A neighbourhood is a CSO electoral division; its households and population are the 2022 census totals of the small areas inside it. Every application, appeal and building-start notice is counted in the division where it is on the map.
Household works are applications whose description says extension, attic, dormer, porch, garden room, garage conversion and the like, and does not say apartments, units, commercial, retail or office.
Work already done (retention) is an application to keep something that was built without permission: its type or description says retention. Its grant rate is shown where at least ten were decided.
Decisions count grants and refusals only; invalid, withdrawn and undecided applications are left out of every rate. Days are from the council’s receipt date to its decision date.
A rate is printed only where the neighbourhood has at least 20 of the thing being rated in the window; smaller ones show counts and are not ranked.
Councils have no per-household figures outside Dublin: the census spine is loaded for the Dublin region only.

Sources: National Planning Application Database (NPAD), CSO Census 2022 Small Area Population Statistics, An Coimisiún Pleanála case list, Building Control Management System commencement notices · fetched 3 Oct 2026, 03:38

Source	Licence	Fetched	Link
National Planning Application Database (NPAD)	CC-BY-4.0	3 Oct 2026, 03:38	open
CSO Census 2022 Small Area Population Statistics	CC-BY-4.0	3 Oct 2026, 03:38	open
An Coimisiún Pleanála case list	CC-BY-4.0	3 Oct 2026, 03:38	open
Building Control Management System commencement notices	CC-BY-4.0	3 Oct 2026, 03:38	open

Recomputed weekly from the store; last built 3 Oct 2026.

Homes permitted, not started · Grant rates by council · Sources & freshness