Neighbourhoods · the four Dublin councils · last 12 months · 322 electoral divisions

Where households extend most — Dublin neighbourhoods

Every neighbourhood ranked: applications, extensions, retention and refusals.

Data updated 10 Oct 2026 · register lag up to 7 days · sources & freshness

14.7

applications per 1,000 homes

40%

household works

15%

for work already done

14%

refused

20%

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 157 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	Whitehall B · Dublin City	92%	25	1,669	28%	—	—
2	Botanic C · Dublin City	86%	21	945	10%	—	—
3	Firhouse Village · South Dublin	85%	33	3,945	15%	7%	54
4	Palmerston Village · South Dublin	82%	28	1,451	21%	10%	54
5	Ballinteer-Woodpark · Dún Laoghaire-Rathdown	81%	27	2,037	7%	—	—
6	Rathfarnham-Ballyroan · South Dublin	80%	20	980	25%	0%	52
7	Rathfarnham Village · South Dublin	78%	23	1,253	4%	5%	49
8	Ballyboden · South Dublin	77%	26	1,797	4%	9%	49
9	Clontarf East C · Dublin City	76%	37	1,193	5%	—	—
10	Ashtown B · Dublin City	74%	27	1,057	7%	—	—
11	Clontarf West A · Dublin City	74%	23	1,443	17%	—	—
12	Lucan-Esker · South Dublin	71%	75	9,990	16%	13%	48
13	Clontarf East D · Dublin City	71%	35	1,043	6%	—	—
14	Pembroke East C · Dublin City	70%	40	1,681	15%	4%	55
15	Rathfarnham-Hermitage · South Dublin	68%	22	1,581	23%	—	—
16	Templeogue-Kimmage Manor · South Dublin	67%	24	1,758	4%	5%	48
17	Terenure-Greentrees · South Dublin	66%	32	1,113	19%	15%	50
18	Rathfarnham-Butterfield · South Dublin	65%	23	1,226	22%	5%	49
19	Cabinteely-Granitefield · Dún Laoghaire-Rathdown	65%	20	1,008	15%	—	—
20	Clontarf East A · Dublin City	64%	42	1,358	19%	—	—
21	Edmondstown · South Dublin	64%	25	1,916	8%	5%	52
22	Grace Park · Dublin City	64%	25	2,331	0%	—	—
23	Kilmainham C · Dublin City	62%	32	2,085	9%	—	—
24	Beaumont C · Dublin City	62%	26	1,327	19%	—	—
25	Harmonstown A · Dublin City	62%	21	1,095	19%	—	—
26	Lucan-St. Helens · South Dublin	61%	90	5,363	8%	17%	49
27	Raheny-St. Assam · Dublin City	61%	33	1,543	3%	10%	54
28	Stillorgan-Deerpark · Dún Laoghaire-Rathdown	59%	37	1,001	8%	18%	53
29	Drumcondra South C · Dublin City	58%	26	1,285	12%	—	—
30	Terenure B · Dublin City	58%	24	1,502	17%	—	—
31	Rathfarnham · Dublin City	57%	37	1,991	19%	—	—
32	Blackrock-Newpark · Dún Laoghaire-Rathdown	57%	23	774	22%	0%	54
33	Dun Laoghaire Sallynoggin East · Dún Laoghaire-Rathdown	57%	23	1,057	17%	5%	52
34	Clontarf East B · Dublin City	56%	54	2,732	26%	3%	55
35	Pembroke West A · Dublin City	56%	41	2,228	2%	5%	55
36	Castleknock-Park · Fingal	56%	34	2,262	18%	4%	53
37	Terenure-Cherryfield · South Dublin	56%	25	885	4%	0%	49
38	Grange A · Dublin City	56%	25	4,166	16%	—	—
39	Rathmines West C · Dublin City	56%	25	1,119	16%	—	—
40	Clondalkin-Moorfield · South Dublin	55%	22	2,283	45%	—	—

Every council 31

#	Council	household works	Applications	Retention	Refused	Median days
1	South Dublin	52%	1,169	16%	13%	50
2	Dublin City	46%	2,854	15%	10%	55
3	Galway City	46%	349	27%	14%	55
4	Leitrim	42%	247	28%	5%	52
5	Sligo	38%	562	25%	7%	53
6	Kildare	37%	1,591	24%	19%	62
7	Wicklow	36%	1,376	20%	11%	54
8	Limerick	35%	1,465	21%	11%	58
9	Dún Laoghaire-Rathdown	34%	1,949	11%	13%	52
10	Tipperary	34%	1,494	30%	5%	56
11	Waterford	33%	1,122	21%	9%	55
12	Louth	33%	1,021	29%	13%	51
13	Roscommon	33%	702	24%	15%	100
14	Cork County	32%	3,389	22%	7%	66
15	Clare	32%	1,201	21%	5%	55
16	Cavan	32%	786	23%	5%	68
17	Longford	32%	305	21%	16%	48
18	Meath	31%	1,817	22%	15%	55
19	Mayo	31%	1,334	20%	6%	59
20	Kerry	31%	1,254	30%	11%	64
21	Kilkenny	31%	912	23%	6%	63
22	Westmeath	31%	700	22%	14%	55
23	Cork City	31%	680	19%	9%	56
24	Fingal	29%	1,705	20%	23%	54
25	Laois	29%	1,029	26%	7%	55
26	Donegal	28%	2,532	24%	7%	50
27	Carlow	28%	454	17%	10%	63
28	Monaghan	27%	662	19%	6%	100
29	Offaly	23%	857	22%	10%	64
30	Galway County	21%	1,970	24%	16%	55
31	Wexford	18%	1,233	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 10 Oct 2026, 03:39

Source	Licence	Fetched	Link
National Planning Application Database (NPAD)	CC-BY-4.0	10 Oct 2026, 03:39	open
CSO Census 2022 Small Area Population Statistics	CC-BY-4.0	10 Oct 2026, 03:39	open
An Coimisiún Pleanála case list	CC-BY-4.0	10 Oct 2026, 03:39	open
Building Control Management System commencement notices	CC-BY-4.0	10 Oct 2026, 03:39	open

Recomputed weekly from the store; last built 10 Oct 2026.

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