Site report · 584 m radius · generated 13 Sept 2026, 17:05

St Margaret's, Williamstown

Eircode —Coordinates 53.30269, -6.19368Local authority Dun Laoghaire-Rathdown County Council

What closes soonest 4 open windows

Appeal window closes 21 Sept 20268 days left
REF11126 — S5 DEC EXEMPT — Full electrical rewire of property.
4 weeks from the council's decision (24 Aug 2026) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer) · 397 m away
Observations close 21 Sept 20268 days left
REF12326 — application received — The proposed works comprise of the temporary removal of 1 no. gate pier and gate
5 weeks from receipt (17 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · €20 to the council · 292 m away
Appeal window closes 23 Sept 202610 days left
D26A/0505/WEB — GRANT PERMISSION — Development consisting of ancillary works to park lodge (a protected st
4 weeks from the council's decision (26 Aug 2026) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer) · 399 m away
Judicial review window closes 30 Sept 202617 days left
Appeal withdrawn S.140(1)(a)
8 weeks from the Commission's decision (5 Aug 2026) · s.50 Planning and Development Act 2000 · 377 m away

Sources: acp, consult, moderngov, npad, rzlt · fetched 12 Sept 2026, 00:05

Source	Licence	Fetched	Link
acp	CC-BY-4.0	12 Sept 2026, 00:05	open
consult	public	12 Sept 2026, 02:04	open
moderngov	public	12 Sept 2026, 21:48	open
npad	CC-BY-4.0	12 Sept 2026, 20:38	open
rzlt	CC-BY-4.0	12 Sept 2026, 00:23	open

Where this is

Townland: Williamstown
Settlement: Dublin city and suburbs
Electoral division: Blackrock-Williamstown
Local electoral area: Blackrock
Local authority: Dun Laoghaire-Rathdown County Council

Census 2022, small area 267026002

535

people

118

households

128

dwellings

68.6% owner-occupied, 16.9% privately rented, 0% social. Vacancy 6.2%.

Sources: places, parcels · fetched 11 Sept 2026, 21:28

Source	Licence	Fetched	Link
places	CC-BY-4.0	11 Sept 2026, 21:28	open
parcels	CC-BY-4.0	11 Sept 2026, 19:06	open

Zoning evaluated against the point

R2 — Existing residential county development plan 2022 2028 · 1 Apr 2022 – 1 Apr 2028

Objective A: A To provide residential development and improve residential amenity while protecting the existing residential amenities

What that means: An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.

Source: zoning · fetched 12 Sept 2026, 02:04

Source	Licence	Fetched	Link
zoning	CC-BY-4.0	12 Sept 2026, 02:04	open

Designations and constraints within 584 m

No OPW CFRAM/NIFM flood extent within 584 m.

Designation	Count	Examples
Architectural Conservation Area	4	Booterstown Avenue; Pembrooke Cottages, Booterstown Avenue; Seafort Parade, Rock Road, Blackrock
Radon risk area	3	About 1 in 10 homes in this area is likely to have high radon levels; About 1 in 20 homes in this area is likely to have high radon levels; About 1 in 5 homes in this area is likely to have high radon levels
Record of Protected Structures	138	Saint Brendan's (Holy Rosary Convent); Summerville; The Hermitage
Special Area of Conservation	1	South Dublin Bay SAC
Recorded monument	3	Martello tower; Castle - tower house; R149448
Special Protection Area	1	South Dublin Bay and River Tolka Estuary SPA

Sources: constraints, constraints.aca, constraints.radon, constraints.rps, constraints.sac, constraints.smr, constraints.spa · fetched 11 Sept 2026, 19:11

Source	Licence	Fetched	Link
constraints	mixed — CC-BY-4.0 except OPW flood (CC-BY-NC-ND-4.0, publishable=false)	11 Sept 2026, 19:11	open
constraints.aca	CC-BY-4.0 (Fingal); public/attribution, unconfirmed (DLR)	11 Sept 2026, 19:11	open
constraints.radon	CC-BY-4.0	11 Sept 2026, 19:11	open
constraints.rps	CC-BY-4.0 (Fingal); public/attribution, unconfirmed (DLR)	11 Sept 2026, 19:11	open
constraints.sac	CC-BY-4.0	11 Sept 2026, 19:11	open
constraints.smr	CC-BY-4.0	11 Sept 2026, 19:11	open
constraints.spa	CC-BY-4.0	11 Sept 2026, 19:11	open

Residential Zoned Land Tax

This site is on an RZLT map — the draft map 2027 and the final map 2026 (6.35 ha). The owner is liable for an annual 3% tax on market value while it stays there. Submissions on the draft map closed 1 Apr 2026.

Source: rzlt · fetched 12 Sept 2026, 00:23

Source	Licence	Fetched	Link
rzlt	CC-BY-4.0	12 Sept 2026, 00:23	open

Planning applications 145 in 5 years within 584 m

Open for observation

23, Cross Avenue, Blackrock, Co Dublin, A94TV27 (Protected Structure) observations close 21 Sept 2026 · 8 days left
The proposed works comprise of the temporary removal of 1 no. gate pier and gate
REF12326received 17 Aug 2026292 m away

Recent decisions and applications

Grant permission

Declare application invalid

Refuse permission

S5 dec exempt

54 Booterstown Avenue, Booterstown, Blackrock, Co. Dublin, A94A2F1 - A Protected Structure Assessment Period
The proposed development consists of a single-storey garden room extension at gr
D26A/0591/WEBreceived 6 Aug 2026322 m away
11 Seafort Parade, Blackrock, Dublin, A94 X8X0 (A Protected Structure) Assessment Period
No works are proposed as part of this application. This application seeks to con
REF11426received 4 Aug 2026486 m away
73, Booterstown Avenue, Booterstown, Co. Dublin, A94P7F3 (A Protected Structure) S5 dec exempt
Full electrical rewire of property.
REF11126received 30 Jul 2026decided 24 Aug 2026397 m away
54 Booterstown Avenue, Blackrock, A94 C6D0 (A Protected Structure) Declare application invalid
A single-storey garden room extension at ground floor level to the rear of No. 5
D26A/0572/WEBreceived 29 Jul 2026decided 31 Jul 2026322 m away
1A, Hyde Park Gardens, Blackrock, Co. Dublin, A94Y9T8 S5 dec not exempt
The existing two storey dwelling has a plaster finish to 3 side and a brick fini
REF10826received 23 Jul 2026decided 13 Aug 2026492 m away
Peafield Mews, Ben Inagh Park, Blackrock, Co. Dublin, A94F7Y5 Assessment Period
-Construction of new single storey extension to the side at first floor level.
D26B/0414/WEBreceived 17 Jul 2026554 m away
Carroll & Kinsella, Rock Road, Blackrock, Co. Dublin, A94EK22 Assessment Period
Existing transparent LED display screen, to front of existing car showroom, insi
D26A/0517received 8 Jul 2026531 m away
36, Booterstown Avenue, Booterstown, Dublin, A94N1AC (A Protected Structure) Grant permission
Development consisting of ancillary works to park lodge (a protected st
D26A/0505/WEBreceived 3 Jul 2026decided 26 Aug 2026399 m away
45 Rock Road, Blackrock, Co. Dublin, A94P8H3 Grant permission & refuse permission
The development subject to planning permission shall consist of; •1no. new frees
D26A/0443/WEBreceived 12 Jun 2026decided 4 Aug 2026468 m away

`description` is truncated at source (80 chars for DLR, 70 for Fingal) and `applicant` is null nationally — NPAD publishes neither in full.

Source: npad · fetched 12 Sept 2026, 20:38

Source	Licence	Fetched	Link
npad	CC-BY-4.0	12 Sept 2026, 20:38	open

Appeals 23 in 5 years within 584 m

ACP 501665 on D25A/0939/WEB Withdrawn
received 3 Jul 2026decided 5 Aug 2026377 m away
ACP 501704 on D25A/0989/WEB Pending
received 14 Jul 2026226 m away
ACP 501674 on D26A/0302/WEB Pending
received 7 Jul 2026579 m away
ACP 501600 on D26A/0269/WEB Pending
received 24 Jun 2026292 m away
ACP 500777 on D25B/0631/WEB Refused
received 9 Feb 2026decided 19 May 202664 m awayinspector's report
ACP 324043 on LRD25A/0637/WEB Granted with conditions
received 26 Jan 2026decided 15 May 202657 m awayinspector's report
ACP 324038 on LRD25A/0637/WEB Invalid
received 21 Jan 2026decided 21 Jan 202657 m away
ACP 323264 on DM25/005 Other
received 31 Jul 2025decided 14 Nov 202566 m awayinspector's report
ACP 322680 on D25A/0087/WEB Granted with conditions
received 3 Jun 2025decided 6 Oct 2025458 m awayinspector's report
ACP 321650 on D24A/0837 Granted with conditions
received 13 Jan 2025decided 8 May 2025251 m awayinspector's report

Source: acp · fetched 12 Sept 2026, 00:05

Source	Licence	Fetched	Link
acp	CC-BY-4.0	12 Sept 2026, 00:05	open

Commencement notices 40 in 3 years within 584 m

23 Cross Avenue, Blackrock, Dublin, A94 TV27 — Short commencement notice
24 Aug 2026CN0146306DRD26A/0146/WEB325 m away
Rosemount Terrace, Dublin, Dún Laoghaire-Rathdown — Seven day notice
3 Apr 2026SN0013973DR493 m away
54 Waltham Terrace, Blackrock, Dún Laoghaire-Rathdown, A94 X7V0 — Opt out commencement notice
24 Mar 2026CN0139785DRD25B/0519/WEB539 m away
2 Booterstown Park, Blackrock, Dún Laoghaire-Rathdown, A94 N4A4 — Opt out commencement notice
23 Mar 2026CN0139574DRD25B/0366366 m away
1 Saint Margarets, Blackrock, Dún Laoghaire-Rathdown, A94 V4H6 — Short commencement notice
17 Feb 2026CN0138442DRD23B/010190 m away
23 Brooklawn, Blackrock, Dún Laoghaire-Rathdown — Opt out commencement notice
10 Feb 2026CN0138223DRD25A/0432520 m away
73 Waltham Terrace, Blackrock, Dún Laoghaire-Rathdown, A94 Y0H6 — Opt out commencement notice
19 Jan 2026CN0137236DRD24A/0950/WEB500 m away
Blackrock Clinic, Dublin, Dún Laoghaire-Rathdown — Commencement notice
23 Dec 2025CN0136793DRD24A/0427/WEB445 m away
35 Booterstown Avenue, Blackrock, Dún Laoghaire-Rathdown, A94HY00 — Short commencement notice
16 Dec 2025CN0136670DRD25B/0479/WEB527 m away
33 Mount Merrion Avenue, Blackrock, Dún Laoghaire-Rathdown — Seven day notice
24 Oct 2025SN0013244DRD24A/0199472 m away

One notice can cover many buildings — count notices, never building rows, or a single multi-unit scheme reads as a trend (T11).

Source: bcms · fetched 12 Sept 2026, 23:34

Source	Licence	Fetched	Link
bcms	CC-BY-4.0	12 Sept 2026, 23:34	open

Sales 151 in 36 months within 584 m

€875,000

median price

€7,817/m²

median €/m²

151

sales

rooftop-geocoded

with listing detail

new builds

€10,000 – €56,035,242, 18 Sept 2023 to 1 Sept 2026.

Address	Sold	Price	Asking	Type	Beds	m²	€/m²	BER	Dist.
65 ROCK ROAD, BLACKROCK, CO. DUBLIN	1 Sept 2026	€1,430,000	€1,300,000	Semi-D	4	198.9	7,190	A2	491 m
6 Coil Cille, Slieve Rua Drive, Blackrock new	28 Jul 2026	€759,031	—	—	—	—	—	—	572 m
12 Woodlands Grove, Woodlands Park, Blackrock new	29 Jun 2026	€920,704	—	—	—	—	—	—	572 m
DUNBODEN, CROSS AVE, BLACKROCK	26 Jun 2026	€2,325,000	€2,195,000	Detached	5	253	9,190	C2	100 m
Islay 47 St Fintans Villas, Deansgrange, Blackrock new	29 May 2026	€1,030,837	—	—	—	—	—	—	572 m
19 woodlands park, blackrock new	29 May 2026	€1,013,216	—	—	—	—	—	—	572 m
10 Woodlands Grove, Woodlands Park, Blackrock new	25 May 2026	€925,110	—	—	—	—	—	—	572 m
47A St Fintan's Villas, Deansgrange, Blackrock new	20 Mar 2026	€687,224	€725,000	Detached	2	88	7,809	A2	572 m
7 Woodlands Grove, Woodlands Park, BLACKROCK new	12 Mar 2026	€963,302	—	—	—	—	—	—	572 m
15 THE ELMS, MOUNT MERRION AVE, BLACKROCK	11 Mar 2026	€490,000	€494,950	Apartment	2	65	7,538	C2	415 m

PPR addresses are geocoded, not surveyed — a sale's position is as good as its address match (`rooftop_n` says how many are address-accurate). Beds, floor area, BER and asking price come from the matched daft.ie advertisement, not from the Register, and only where a match was found (`enriched_n`).

Sources: cara_listings, ppr · fetched 11 Sept 2026, 20:14

Source	Licence	Fetched	Link
cara_listings	Third-party advertisement data captured by Cara from daft.ie. Not open data: internal analysis only, no redistribution of listing content. Business-contact details (licensed PSP name and branch) are retained per Cara DECISIONS 2026-08-19; agent phone numbers and all vendor/buyer identities are dropped.	11 Sept 2026, 20:14	open
ppr	PSI — PSRA re-use terms (psr.ie/re-use-of-public-sector-information). Free re-use in any format provided the source and PSRA copyright are acknowledged, the data is reproduced accurately and not used misleadingly, and it is NOT used 'for the principal purpose of advertising or promoting a particular product or service'. Attribution: 'Contains PSRA Residential Property Price Register data, © Property Services Regulatory Authority.'	12 Sept 2026, 20:31	open

Consultations 2 matched by place

Cruise Passenger Realignment Project, Dun Laoghaire Harbour 38 days left
closes 21 Oct 2026Dún Laoghaire-Rathdown County Councillea-wide
Environment: Green Dog Walkers Pledge 109 days left
closes 31 Dec 2026Dún Laoghaire-Rathdown County Councilcounty-wide

Source: consult · fetched 12 Sept 2026, 02:04

Source	Licence	Fetched	Link
consult	public	12 Sept 2026, 02:04	open

Council items 4 in 24 months

National flag in Blackrock Park
Dún Laoghaire CHEPP Area Committee Meeting7 Sept 202615Dún Laoghaire-Rathdown County Council
Taking in Charge at Proby Place, Blackrock, Co. Dublin
Monthly County Council Meeting11 May 20266Dún Laoghaire-Rathdown County Council
Question in the name of Councillor Clodagh Ní Mhuirí
North Central Area Committee16 Feb 2026Q.46Dublin City Council
Report No. 199/2024 of the A/Assistant Chief Executive (M. Igoe)- With reference to the proposed disposal of the Council's Fee Simple interest at 41 Newtown Avenue, Coolock Industrial Estate, Dublin 17 to E TO INFINITY- For Blacklion Real Estate Fund.
Monthly Council Meeting7 Oct 202416(c)Dublin City Council

Source: moderngov · fetched 12 Sept 2026, 21:48

Source	Licence	Fetched	Link
moderngov	public	12 Sept 2026, 21:48	open

Capacity and public land

No publishable utility-capacity record within the radius. 21 records from Esb substation withheld: source licence forbids redistribution; see the operator's own register.

No site on the LDA register of relevant public lands within 584 m.

Sources: esbn, lda_lands · fetched 11 Sept 2026, 16:42

Source	Licence	Fetched	Link
esbn	all-rights-reserved (esbnetworks.ie disclaimer: personal/non-commercial, no modification or republication without written ESB permission) — permission NOT sought · not redistributable — shown as a flag only	11 Sept 2026, 16:42	open
lda_lands	CC-BY-4.0	11 Sept 2026, 16:43	open

Schools and public transport within 1.0 km

Schools

Blackrock College
postprimary1041 pupilsCATHOLIC247 m
Dominican College
postprimary521 pupilsCATHOLIC293 m
BOOTERSTOWN N S
primary85 pupilsChurch Of Ireland298 m
Willow Park School
postprimary206 pupilsCATHOLIC390 m
OUR LADY OF MERCY CONVENT SCHOOL
primary247 pupilsCatholic535 m
St Andrews College
postprimary1011 pupilsPRESBYTERIAN620 m
BENINCASA SPECIAL SCHOOL
primary35 pupilsCatholic640 m
Coláiste Íosagáin
postprimary488 pupilsCATHOLIC694 m

Stops 30 · routes 114, 116, 118, 181, 4, 46n, 47, 7, 700, 702, 7A, 7B, 7D, 7E, 7n, 84n, DART, E1, E2, L26, S6, rail

Glenvar Park
S6328 m
Hyde Park Avenue
S6352 m
Cross Avenue
S6379 m
Cross Avenue
S6422 m
Clanfadda Wood
S6449 m
Blackrock Clinic
4, 7, 7A, 7E453 m
Grove Avenue
S6486 m
Blackrock Clinic
4, 7, 7A, 7n, 84n490 m

Sources: gtfs, schools · fetched 11 Sept 2026, 19:16

Source	Licence	Fetched	Link
gtfs	CC-BY-4.0	11 Sept 2026, 19:16	open
schools	CC-BY-4.0	11 Sept 2026, 16:41	open

Sources used in this report

Section	Source	Licence	Fetched
Location	places	CC-BY-4.0	11 Sept 2026, 21:28
Parcel	parcels	CC-BY-4.0	11 Sept 2026, 19:06
Zoning	zoning	CC-BY-4.0	12 Sept 2026, 02:04
Constraints	constraints	mixed — CC-BY-4.0 except OPW flood (CC-BY-NC-ND-4.0, publishable=false)	11 Sept 2026, 19:11
Constraints	constraints.aca	CC-BY-4.0 (Fingal); public/attribution, unconfirmed (DLR)	11 Sept 2026, 19:11
Constraints	constraints.radon	CC-BY-4.0	11 Sept 2026, 19:11
Constraints	constraints.rps	CC-BY-4.0 (Fingal); public/attribution, unconfirmed (DLR)	11 Sept 2026, 19:11
Constraints	constraints.sac	CC-BY-4.0	11 Sept 2026, 19:11
Constraints	constraints.smr	CC-BY-4.0	11 Sept 2026, 19:11
Constraints	constraints.spa	CC-BY-4.0	11 Sept 2026, 19:11
Rzlt	rzlt	CC-BY-4.0	12 Sept 2026, 00:23
Planning	npad	CC-BY-4.0	12 Sept 2026, 20:38
Appeals	acp	CC-BY-4.0	12 Sept 2026, 00:05
Commencements	bcms	CC-BY-4.0	12 Sept 2026, 23:34
Sales	cara_listings	Third-party advertisement data captured by Cara from daft.ie. Not open data: internal analysis only, no redistribution of listing content. Business-contact details (licensed PSP name and branch) are retained per Cara DECISIONS 2026-08-19; agent phone numbers and all vendor/buyer identities are dropped.	11 Sept 2026, 20:14
Sales	ppr	PSI — PSRA re-use terms (psr.ie/re-use-of-public-sector-information). Free re-use in any format provided the source and PSRA copyright are acknowledged, the data is reproduced accurately and not used misleadingly, and it is NOT used 'for the principal purpose of advertising or promoting a particular product or service'. Attribution: 'Contains PSRA Residential Property Price Register data, © Property Services Regulatory Authority.'	12 Sept 2026, 20:31
Consultations	consult	public	12 Sept 2026, 02:04
Council items	moderngov	public	12 Sept 2026, 21:48
Capacity	esbn	all-rights-reserved (esbnetworks.ie disclaimer: personal/non-commercial, no modification or republication without written ESB permission) — permission NOT sought · not redistributable, flag only	11 Sept 2026, 16:42
Public land	lda_lands	CC-BY-4.0	11 Sept 2026, 16:43
Projects	social_housing	CC-BY-SA-4.0	11 Sept 2026, 20:13
Amenities	gtfs	CC-BY-4.0	11 Sept 2026, 19:16
Amenities	schools	CC-BY-4.0	11 Sept 2026, 16:41
Deadlines	acp	CC-BY-4.0	12 Sept 2026, 00:05
Deadlines	consult	public	12 Sept 2026, 02:04
Deadlines	moderngov	public	12 Sept 2026, 21:48
Deadlines	npad	CC-BY-4.0	12 Sept 2026, 20:38
Deadlines	rzlt	CC-BY-4.0	12 Sept 2026, 00:23

Generated 13 Sept 2026, 17:05 from the Planning Register store. Nothing on this page was fetched live: every figure was already in the store with the fetch time shown. Deadlines are derived from published receipt and decision dates under the Planning and Development Act 2000; confirm with the planning authority before relying on them.

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