Site report · 500 m radius · generated 13 Sept 2026, 02:05

Castlebyrne Park

Eircode —Coordinates 53.28971, -6.17516Local authority Dun Laoghaire-Rathdown County Council

What closes soonest 2 open windows

Judicial review window closes 21 Sept 20268 days left
Refuse permission
8 weeks from the Commission's decision (27 Jul 2026) · s.50 Planning and Development Act 2000 · 477 m away
Judicial review window closes 20 Oct 202637 days left
Refuse permission
8 weeks from the Commission's decision (25 Aug 2026) · s.50 Planning and Development Act 2000 · 477 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: Stillorgan Park
Settlement: Dublin city and suburbs
Electoral division: Blackrock-Carysfort
Local electoral area: Blackrock
Local authority: Dun Laoghaire-Rathdown County Council
Parcel: Tailte Éireann 1703470 (freehold), 289 m²

Census 2022, small area 267020003/267025001

228

people

households

102

dwellings

71.3% owner-occupied, 21.3% privately rented, 7.4% social. Vacancy 5.9%.

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 500 m

No OPW CFRAM/NIFM flood extent within 500 m.

Designation	Count	Examples
NIAH-recorded building	7	Belfort; Belfort; Mel Field sometimes Melfield
Radon risk area	2	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
Record of Protected Structures	12	Newpark School (formerly Melfield); Newtownpark House; Formal Gardens of Dunardagh House

Sources: constraints, constraints.niah, constraints.radon, constraints.rps · 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.niah	CC-BY-4.0	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

Residential Zoned Land Tax

This site is on an RZLT map — the draft map 2027 and the final map 2026 (0.13 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 104 in 5 years within 500 m

Recent decisions and applications

Grant permission

Declare application invalid

Grant permission & grant retention

Grant permission for retention

29, Avondale Lawn, Blackrock, Dublin, A94X8Y8 Assessment Period
The construction of a first-floor extension over the existing single-storey flat
D26B/0438/WEBreceived 31 Jul 2026472 m away
12, Rockville Drive, Blackrock, Co. Dublin, A94CP20 Assessment Period
• Demolition of the roof of the existing extension to the side;• Construction of
D26B/0430/WEBreceived 28 Jul 2026324 m away
5 Fairyhill, Newtownpark Park Avenue, Blackrock, Co. Dublin, A94RC79 Grant permission
Permission is sought for revisions and alterations to previously permitted deve
D26A/0409/WEBreceived 3 Jun 2026decided 23 Jul 2026477 m away
15, Carysfort Park, Blackrock, Co Dublin, A94X3W2 Grant permission
The proposed development will consist of a new consolidated single-storey front,
D26B/0267/WEBreceived 30 Apr 2026decided 18 Jun 2026485 m away
14, Newtown Park, Blackrock, Co. Dublin, A94YT99 Grant permission
The change of use from commercial to residential use, reinstatement of residenti
D26A/0290received 16 Apr 2026decided 5 Jun 2026267 m away
9, Rockville Park, Blackrock, Dublin, A94X478 Grant permission
The construction of a new first floor extension over existing ground floor util
D26B/0165/WEBreceived 23 Mar 2026decided 7 May 2026239 m away
2a, Proby Square, Blackrock, Dublin, A94NY19 Grant permission for retention
Retention of a 2.02 m high, metal fence with posts (15.275 m) erected along the
D26B/0113/WEBreceived 2 Mar 2026decided 21 Apr 2026477 m away
16 Rockville Park, Blackrock, Dublin, A94W672 Grant permission
Permission is sought for the construction of a single and two storey rear extens
D26B/0094/WEBreceived 17 Feb 2026decided 10 Apr 2026282 m away
rear of 4 & 4a, Proby Square, Blackrock, Co. Dublin Grant extension of duration of perm.
Permission for development. The proposed development will consist of:
D21A/0136/E1received 29 Jan 2026decided 20 Mar 2026459 m away
67, Rowanbyrn, Blackrock, Co. Dublin, A94XW67 Grant permission
Alterations and additions to the existing semi-detached house; including for the
D25B/0681/WEBreceived 7 Dec 2025decided 21 May 2026394 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 9 in 5 years within 500 m

ACP 501228 on D26B/0113/WEB Refused
received 27 Apr 2026decided 25 Aug 2026477 m awayinspector's report
ACP 500723 on D25B/0461 Refused
received 4 Feb 2026decided 27 Jul 2026477 m awayinspector's report
ACP 500070 on D25A/0612/WEB Granted with conditions
received 14 Oct 2025decided 25 Feb 2026336 m awayinspector's report
ACP 320835 on D24B/0301/WEB Granted with conditions
received 17 Sept 2024decided 23 Jan 2025312 m awayinspector's report
ACP 319696 on D24A/0119/WEB Granted with conditions
received 10 May 2024decided 8 Nov 2024491 m awayinspector's report
ACP 318867 on D23B/0498 Granted with conditions
received 16 Jan 2024decided 19 Jun 20240 m awayinspector's report
ACP 317466 on D23A/0268 Refused
received 29 Jun 2023decided 13 Mar 2024274 m awayinspector's report
ACP 312036 on D21A/0557 Granted with conditions
received 23 Nov 2021decided 30 Aug 2022435 m awayinspector's report
ACP 311711 on D21A/0557 Granted
received 20 Oct 2021decided 11 Nov 2021435 m away

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 28 in 3 years within 500 m

Knapp Cottage, Annaville Avenue, Blackrock, Dublin, A94 F2Y7 — Opt out commencement notice
20 Jul 2026CN0144994DRD24A/0958/WEB266 m away
16 Rockville Park, Blackrock, Dublin, A94 W672 — Opt out commencement notice
11 Jul 2026CN0144581DRD26B/0094/WEB297 m away
9 Páirc Bhaile Na Creige, An Charraig Dhubh, Dublin, A94 X478 — Opt out commencement notice
29 Jun 2026CN0144362DRD26B/0165/WEB263 m away
Corner of Hawthorn Manor and Newtown Park, Blackrock, Co Dublin, Blackrock, Dún Laoghaire-Rathdown — Opt out commencement notice
8 Jun 2026CN0143125DRABP APPEAL NO: PL-500070-DR / PLANNING REF: D25A/0612/WEB349 m away
Proby Square, Dublin, Dún Laoghaire-Rathdown — Commencement notice
9 Feb 2026CN0138068DRD25A/0582/WEB355 m away
43 Avondale Lawn, Blackrock, Dún Laoghaire-Rathdown, A94 D6D9 — Opt out commencement notice
24 Nov 2025CN0135894DRD25A/0610/WEB475 m away
2 Rockville Drive, Blackrock, Dún Laoghaire-Rathdown, A94 AK72 — Short commencement notice
3 Nov 2025CN0135179DRD25B/0082298 m away
110 Rowanbyrn, Blackrock, Dún Laoghaire-Rathdown, A94 E785 — Opt out commencement notice
27 Oct 2025CN0134760DRABP-320835-24325 m away
14 Oakley Park, Blackrock, Dún Laoghaire-Rathdown, A94 D6P8 — Short commencement notice
10 Oct 2025CN0134260DRD25A/0469/WEB189 m away
77 Rockville Crescent, Blackrock, Dún Laoghaire-Rathdown, A94 TP26 — Commencement notice
30 Jun 2025CN0130273DRD22A/1018470 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 48 in 36 months within 500 m

€830,000

median price

€7,810/m²

median €/m²

sales

rooftop-geocoded

with listing detail

new builds

€240,000 – €2,065,000, 25 Jan 2024 to 9 Jun 2026.

Address	Sold	Price	Asking	Type	Beds	m²	€/m²	BER	Dist.
93 CASTLEBYRNE PARK, NEWTOWNPARK AVE, BLACKROCK	9 Jun 2026	€597,000	—	—	—	—	—	—	105 m
10 BROOKLAWN AVE, BLACKROCK, DUBLIN	6 Mar 2026	€700,000	€645,000	End of Terrace	3	85	8,235	D2	402 m
15 CASTLEBYRNE PARK, NEWTOWN PARK AVE, BLACKROCK	13 Feb 2026	€667,500	€595,000	House	2	86	7,762	D2	162 m
19 NEWTOWN PARK, BLACKROCK, DUBLIN	12 Feb 2026	€840,000	€795,000	Semi-D	3	105	8,000	D1	332 m
10 PROBY GARDEN, BLACKROCK, DUBLIN	3 Feb 2026	€947,000	€875,000	Semi-D	4	129	7,341	D1	404 m
ERRIGAL, 1 ROWAN PARK AVE, BLACKROCK	10 Oct 2025	€1,300,000	€1,350,000	Detached	4	177	7,345	D2	489 m
46 AVONDALE LAWN, BLACKROCK, DUBLIN	26 Sept 2025	€1,470,000	€1,350,000	Semi-D	4	182	8,077	B2	486 m
8 PROBY SQUARE, BLACKROCK, CO DUBLIN	19 Sept 2025	€1,520,000	€1,495,000	Terrace	5	280	5,429	B3	423 m
49 ROCKVILLE CRESCENT, BLACKROCK, DUBLIN	16 Sept 2025	€920,000	€930,000	Semi-D	4	150	6,133	D1	483 m
16A PROBY SQ, BLACKROCK, DUBLIN	8 Aug 2025	€815,000	€745,000	Detached	2	116.1	7,020	C2	401 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. 14 records from Esb substation withheld: source licence forbids redistribution; see the operator's own register.

Public land (LDA register of relevant lands)

Dún Laoghaire-Rathdown County Council — Dublin city and suburbs
0.1 hafolio DN182131F47 m awayas of 1 Apr 2023
Electricity Supply Board — Dublin city and suburbs
0.71 hafolio DN16652N137 m awayas of 1 Apr 2023
Dublin City Council — Dublin city and suburbs
0.5 hafolio DN7620N150 m awayas of 1 Apr 2023
Dublin City Council — Dublin city and suburbs
0.82 hafolio DN6266N195 m awayas of 1 Apr 2023
Dublin City Council — Dublin city and suburbs
1.3 hafolio DN76288F346 m awayas of 1 Apr 2023
Dún Laoghaire-Rathdown County Council — Dublin city and suburbs
0.18 hafolio DN92489L356 m awayas of 1 Apr 2023
Dublin City Council — Dublin city and suburbs
1.38 hafolio DN76288F389 m awayas of 1 Apr 2023
Dún Laoghaire-Rathdown County Council — Dublin city and suburbs
1.33 hafolio DN9392F469 m awayas of 1 Apr 2023

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

Newpark Comprehensive School
postprimary884 pupilsCHURCH OF IRELAND147 m
ALL SAINTS N S
primary51 pupilsChurch Of Ireland383 m
Scoil na nAingeal
primary410 pupilsCatholic397 m
ST AUGUSTINES SCHOOL
primary157 pupilsCatholic473 m
Rockford Manor Secondary School
postprimary273 pupilsCATHOLIC862 m
CARYSFORT NS
primary583 pupilsCatholic976 m

Stops 45 · routes 114, 4, 7, 7A, 7B, 7D, 7E, 7n, 84n, L25, L26, S8

Fleurville Road
S856 m
Annaville Terrace
7B, 7D, L25, L2674 m
Newtownpark Avenue
7B, 7D, L25, L2693 m
Newtownpark Avenue
7B, 7D, L25209 m
Newtown Park
S8238 m
Marian Park
S8243 m
Newtown Park
114273 m
Rockville Road
S8275 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.niah	CC-BY-4.0	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
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, 02:05 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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