Neighbourhoods · Fingal · last 12 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

15.8

applications per 1,000 homes

30%

household works

20%

for work already done

22%

refused

23%

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 31 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	Castleknock-Park	59%	39	2,262	18%	4%	52
2	Malahide West	53%	36	2,141	6%	17%	53
3	Castleknock-Knockmaroon	47%	79	6,937	13%	18%	52
4	Blanchardstown-Blakestown	44%	119	13,277	18%	14%	52
5	Skerries	44%	68	3,096	22%	29%	55
6	Sutton	42%	36	2,222	14%	13%	54
7	Baldoyle	36%	25	2,984	16%	15%	54
8	Swords-Forrest	35%	46	5,334	26%	9%	53
9	Balgriffin	35%	26	1,238	8%	—	—
10	Balbriggan Rural	33%	64	6,127	22%	30%	74
11	Balbriggan Urban	33%	36	2,966	8%	10%	62
12	Kinsaley	31%	81	3,746	23%	24%	55
13	Swords-Lissenhall	31%	49	3,928	29%	12%	53
14	Portmarnock South	31%	26	1,757	4%	13%	54
15	Malahide East	30%	83	3,118	22%	12%	55
16	Holmpatrick	30%	47	1,390	13%	38%	61
17	Blanchardstown-Abbotstown	30%	33	2,008	9%	—	—
18	Portmarnock North	28%	25	1,423	12%	18%	54
19	Howth	27%	104	3,126	19%	24%	55
20	Lusk	25%	81	3,341	17%	43%	54
21	Swords-Seatown	25%	24	2,480	33%	—	—
22	Donabate	24%	63	3,900	27%	24%	55
23	Blanchardstown-Coolmine	24%	41	3,565	17%	16%	53
24	Rush	23%	60	3,551	17%	55%	55
25	The Ward	21%	95	3,674	32%	19%	54
26	Dubber	21%	42	3,003	19%	21%	62
27	Garristown	19%	21	529	14%	—	—
28	Swords Village	8%	26	1,021	8%	—	—
29	Ballyboghil	6%	36	473	44%	—	—
30	Kilsallaghan	5%	22	640	18%	—	—
31	Airport	3%	31	1,939	10%	—	—

Every council 31

#	Council	household works	Applications	Retention	Refused	Median days
1	South Dublin	54%	1,094	16%	13%	55
2	Dublin City	46%	2,860	15%	10%	55
3	Galway City	44%	348	27%	14%	55
4	Leitrim	40%	247	28%	5%	52
5	Sligo	38%	550	25%	7%	53
6	Kildare	37%	1,575	23%	19%	62
7	Wicklow	36%	1,373	19%	11%	54
8	Dún Laoghaire-Rathdown	34%	1,927	11%	13%	52
9	Tipperary	34%	1,488	30%	4%	57
10	Limerick	34%	1,463	21%	11%	57
11	Louth	34%	1,020	29%	13%	51
12	Roscommon	34%	699	24%	14%	100
13	Waterford	33%	1,132	20%	9%	55
14	Cavan	33%	781	24%	4%	63
15	Cork County	32%	3,352	22%	7%	66
16	Kerry	32%	1,267	30%	11%	64
17	Clare	32%	1,203	21%	5%	55
18	Longford	32%	305	22%	16%	49
19	Meath	31%	1,809	22%	16%	55
20	Mayo	31%	1,311	20%	6%	59
21	Kilkenny	30%	904	22%	6%	63
22	Westmeath	30%	703	22%	15%	55
23	Fingal	29%	1,674	20%	23%	54
24	Laois	29%	1,027	26%	7%	55
25	Cork City	29%	696	20%	9%	56
26	Donegal	28%	2,561	25%	7%	50
27	Monaghan	27%	671	18%	7%	99
28	Carlow	27%	449	17%	10%	63
29	Offaly	23%	835	22%	10%	76
30	Galway County	21%	1,956	25%	16%	55
31	Wexford	18%	1,202	26%	17%	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