Neighbourhoods · Fingal · last 24 months · 42 electoral divisions

Where households extend most — Fingal neighbourhoods

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

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

32.5

applications per 1,000 homes

29%

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	Castleknock-Park	48%	88	2,262	19%	5%	53
2	Blanchardstown-Delwood	48%	25	1,892	16%	15%	52
3	Swords-Glasmore	47%	36	2,481	8%	13%	54
4	Blanchardstown-Blakestown	45%	246	13,277	19%	12%	52
5	Malahide West	45%	83	2,141	4%	12%	53
6	Castleknock-Knockmaroon	44%	203	6,937	21%	16%	52
7	Swords-Forrest	43%	84	5,334	24%	16%	53
8	Skerries	40%	151	3,096	15%	28%	55
9	Balbriggan Urban	39%	61	2,966	11%	18%	61
10	Portmarnock South	38%	48	1,757	2%	12%	53
11	Sutton	31%	84	2,222	14%	19%	54
12	Swords-Lissenhall	30%	93	3,928	27%	21%	54
13	Howth	29%	217	3,126	18%	21%	55
14	Malahide East	29%	170	3,118	19%	17%	55
15	Swords-Seatown	29%	49	2,480	20%	28%	52
16	Blanchardstown-Coolmine	28%	80	3,565	20%	16%	53
17	Lusk	27%	139	3,341	22%	41%	55
18	Baldoyle	27%	67	2,984	24%	13%	54
19	Balbriggan Rural	26%	121	6,127	19%	42%	55
20	Portmarnock North	26%	53	1,423	13%	10%	53
21	Blanchardstown-Roselawn	26%	27	656	19%	13%	50
22	Kinsaley	24%	140	3,746	20%	19%	54
23	Turnapin	23%	30	569	33%	32%	52
24	Rush	22%	139	3,551	17%	40%	55
25	Donabate	21%	129	3,900	31%	24%	55
26	Holmpatrick	21%	97	1,390	18%	42%	61
27	Dubber	21%	76	3,003	20%	12%	54
28	The Ward	20%	189	3,674	33%	17%	54
29	Balgriffin	20%	60	1,238	10%	25%	55
30	Blanchardstown-Abbotstown	20%	50	2,008	20%	16%	52
31	Blanchardstown-Corduff	20%	25	1,276	28%	—	—
32	Swords Village	19%	52	1,021	23%	17%	60
33	Garristown	15%	48	529	19%	64%	54
34	Hollywood	15%	41	486	20%	37%	62
35	Kilsallaghan	10%	52	640	31%	14%	97
36	Blanchardstown-Tyrrelstown	10%	31	1,025	32%	5%	61
37	Balscadden	10%	30	229	30%	48%	55
38	Clonmethan	10%	29	282	24%	48%	55
39	Ballyboghil	7%	60	473	35%	44%	55
40	Airport	7%	55	1,939	11%	9%	54

Every council 31

#	Council	household works	Applications	Retention	Refused	Median days
1	South Dublin	55%	2,266	15%	12%	55
2	Dublin City	47%	6,009	15%	10%	55
3	Leitrim	43%	507	28%	4%	53
4	Galway City	41%	691	27%	14%	55
5	Cork City	39%	1,190	18%	8%	57
6	Kildare	37%	3,285	24%	20%	62
7	Sligo	37%	1,123	25%	7%	52
8	Wicklow	36%	2,778	20%	14%	54
9	Waterford	36%	2,255	21%	11%	56
10	Tipperary	34%	3,078	30%	4%	56
11	Limerick	34%	2,833	20%	10%	61
12	Louth	34%	2,052	29%	15%	52
13	Cavan	34%	1,606	23%	5%	57
14	Dún Laoghaire-Rathdown	33%	3,921	11%	13%	52
15	Meath	32%	3,476	21%	13%	55
16	Roscommon	32%	1,350	23%	13%	98
17	Cork County	31%	6,773	21%	8%	67
18	Clare	31%	2,400	20%	6%	55
19	Kilkenny	31%	1,897	22%	7%	63
20	Westmeath	31%	1,390	21%	13%	57
21	Kerry	30%	2,666	29%	12%	63
22	Longford	30%	600	20%	14%	51
23	Fingal	28%	3,457	20%	22%	54
24	Mayo	28%	2,749	18%	7%	60
25	Carlow	28%	922	17%	9%	84
26	Donegal	27%	5,080	24%	7%	50
27	Laois	26%	1,963	23%	7%	55
28	Monaghan	26%	1,327	19%	7%	99
29	Offaly	24%	1,612	21%	9%	77
30	Galway County	21%	3,873	24%	13%	55
31	Wexford	18%	2,838	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 7 Nov 2026, 02:45

Source	Licence	Fetched	Link
National Planning Application Database (NPAD)	CC BY 4.0	7 Nov 2026, 02:45	open
CSO Census 2022 Small Area Population Statistics	CC BY 4.0	7 Nov 2026, 02:45	open
An Coimisiún Pleanála case list	CC BY 4.0	7 Nov 2026, 02:45	open
Building Control Management System commencement notices	CC BY 4.0	7 Nov 2026, 02:45	open

Recomputed weekly from the store; last built 7 Nov 2026.

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