Neighbourhoods · Fingal · last 24 months · 42 electoral divisions

Where households extend most — Fingal neighbourhoods

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

Data updated 24 Oct 2026 · register lag up to 7 days · sources & freshness

32.5

applications per 1,000 homes

28%

household works

20%

for work already done

22%

refused

24%

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 41 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	Blanchardstown-Delwood	48%	25	1,892	16%	15%	52
2	Swords-Glasmore	46%	35	2,481	9%	12%	54
3	Blanchardstown-Blakestown	44%	248	13,277	19%	12%	52
4	Castleknock-Park	44%	88	2,262	22%	5%	53
5	Malahide West	44%	84	2,141	4%	11%	53
6	Castleknock-Knockmaroon	43%	201	6,937	21%	15%	52
7	Swords-Forrest	43%	81	5,334	23%	16%	53
8	Skerries	39%	150	3,096	15%	27%	55
9	Balbriggan Urban	39%	62	2,966	15%	18%	58
10	Portmarnock South	37%	51	1,757	2%	11%	54
11	Swords-Seatown	31%	45	2,480	22%	27%	52
12	Sutton	30%	81	2,222	15%	18%	54
13	Howth	29%	218	3,126	17%	21%	55
14	Swords-Lissenhall	29%	94	3,928	28%	20%	54
15	Blanchardstown-Coolmine	29%	80	3,565	19%	16%	53
16	Malahide East	28%	170	3,118	20%	17%	55
17	Lusk	27%	138	3,341	22%	41%	55
18	Baldoyle	27%	67	2,984	24%	14%	54
19	Portmarnock North	27%	52	1,423	13%	10%	52
20	Balbriggan Rural	25%	123	6,127	20%	42%	55
21	Kinsaley	24%	139	3,746	20%	19%	54
22	Turnapin	23%	31	569	35%	35%	52
23	Blanchardstown-Roselawn	23%	26	656	19%	13%	50
24	Donabate	22%	128	3,900	32%	24%	55
25	Holmpatrick	22%	103	1,390	17%	43%	61
26	Rush	21%	144	3,551	17%	39%	55
27	Dubber	21%	81	3,003	20%	12%	54
28	The Ward	20%	189	3,674	33%	17%	54
29	Balgriffin	20%	61	1,238	10%	25%	55
30	Blanchardstown-Abbotstown	20%	50	2,008	20%	20%	52
31	Blanchardstown-Corduff	20%	25	1,276	28%	—	—
32	Swords Village	18%	50	1,021	22%	17%	60
33	Garristown	15%	48	529	19%	64%	54
34	Hollywood	11%	38	486	21%	37%	62
35	Kilsallaghan	10%	51	640	29%	14%	97
36	Blanchardstown-Tyrrelstown	10%	31	1,025	32%	5%	61
37	Clonmethan	10%	29	282	24%	48%	55
38	Airport	7%	54	1,939	11%	9%	55
39	Balscadden	7%	29	229	31%	48%	55
40	Ballyboghil	6%	62	473	34%	44%	55

Every council 31

#	Council	household works	Applications	Retention	Refused	Median days
1	South Dublin	55%	2,283	15%	12%	55
2	Dublin City	48%	5,937	15%	10%	55
3	Leitrim	44%	505	27%	4%	53
4	Galway City	41%	685	27%	14%	55
5	Cork City	40%	1,194	19%	7%	56
6	Kildare	37%	3,304	24%	20%	61
7	Sligo	37%	1,121	25%	7%	52
8	Wicklow	36%	2,789	20%	14%	54
9	Waterford	36%	2,256	21%	11%	56
10	Tipperary	34%	3,068	30%	4%	55
11	Limerick	34%	2,844	20%	11%	61
12	Cavan	34%	1,597	24%	5%	58
13	Dún Laoghaire-Rathdown	33%	3,887	11%	13%	52
14	Meath	33%	3,463	21%	13%	55
15	Louth	33%	2,073	29%	15%	52
16	Roscommon	32%	1,368	22%	13%	98
17	Cork County	31%	6,804	21%	8%	66
18	Clare	31%	2,398	20%	6%	55
19	Westmeath	31%	1,381	20%	13%	58
20	Kerry	30%	2,657	30%	12%	63
21	Kilkenny	30%	1,894	22%	7%	63
22	Longford	30%	604	19%	14%	50
23	Fingal	28%	3,471	20%	22%	54
24	Mayo	28%	2,733	18%	7%	60
25	Carlow	28%	913	18%	9%	83
26	Donegal	27%	5,074	24%	7%	50
27	Laois	26%	1,965	23%	7%	55
28	Monaghan	25%	1,323	19%	7%	98
29	Offaly	24%	1,615	22%	9%	78
30	Galway County	21%	3,872	24%	13%	54
31	Wexford	18%	2,827	27%	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 24 Oct 2026, 03:42

Source	Licence	Fetched	Link
National Planning Application Database (NPAD)	CC BY 4.0	24 Oct 2026, 03:42	open
CSO Census 2022 Small Area Population Statistics	CC BY 4.0	24 Oct 2026, 03:42	open
An Coimisiún Pleanála case list	CC BY 4.0	24 Oct 2026, 03:42	open
Building Control Management System commencement notices	CC BY 4.0	24 Oct 2026, 03:42	open

Recomputed weekly from the store; last built 24 Oct 2026.

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