Site report · 500 m radius · generated 15 Sept 2026, 05:45

Trees Road Lower, Mount Merrion, Mount Merrion or Callary

Eircode —Coordinates 53.29456, -6.20381Local authority Dun Laoghaire-Rathdown County Council

What closes soonest 3 open windows

Observations close 15 Sept 2026closes today
D26A/0599/WEB — application received — The development consists of a canopy erected over service bays along with all a
5 weeks from receipt (11 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · €20 to the council · 355 m away
Observations close 15 Sept 2026closes today
D26B/0449/WEB — application received — The development consists of: The alteration and extension of the existing single
5 weeks from receipt (11 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · €20 to the council · 386 m away
Observations close 22 Sept 20267 days left
D26A/0618/WEB — application received — The development consists of a canopy erected over service bays along with all a
5 weeks from receipt (18 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · €20 to the council · 355 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	14 Sept 2026, 21:51	open
npad	CC-BY-4.0	14 Sept 2026, 20:39	open
rzlt	CC-BY-4.0	12 Sept 2026, 00:23	open

Where this is

Townland: Mount Merrion or Callary
Settlement: Dublin city and suburbs
Electoral division: Stillorgan-Mount Merrion
Local electoral area: Stillorgan
Local authority: Dun Laoghaire-Rathdown County Council
Parcel: Tailte Éireann 5826929 (leasehold), 650 m²

Census 2022, small area 267128002

384

people

117

households

132

dwellings

91.5% owner-occupied, 1.7% privately rented, 0% social. Vacancy 6.8%.

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
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	8	Oak Lodge; South Hill House; Hamilton Lodge
Recorded monument	2	Ecclesiastical site; R149423

Sources: constraints, constraints.radon, constraints.rps, constraints.smr · 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.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.smr	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 (2.86 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 163 in 5 years within 500 m

Open for observation

Applegreen, Stillorgan Road, Blackrock, Co. Dublin, A94AN81 observations close 15 Sept 2026 · closes today
The development consists of a canopy erected over service bays along with all a
D26A/0599/WEBreceived 11 Aug 2026decided 12 Aug 2026355 m away
8, Woodlands Drive, Stillorgan, Blackrock, Co Dublin, A94N202 observations close 15 Sept 2026 · closes today
The development consists of: The alteration and extension of the existing single
D26B/0449/WEBreceived 11 Aug 2026386 m away
Applegreen, Stillorgan Road, Blackrock, Dublin, A94AN81 observations close 22 Sept 2026 · 7 days left
The development consists of a canopy erected over service bays along with all a
D26A/0618/WEBreceived 18 Aug 2026355 m away

Recent decisions and applications

107

Grant permission

Declare application invalid

Grant permission for retention

Refuse permission

28, Saint Laurence's Park, Stillorgan, Co. Dublin, A94R659 Assessment Period
The proposed development consists of the subdivision of the existing site curtil
D26A/0597/WEBreceived 10 Aug 2026478 m away
42, Sycamore Road, Mount Merrion, Blackrock, Co. Dublin, A94Y1T0 Assessment Period
The development will consist of the renovation and extension of existing 2-stor
D26B/0401/WEBreceived 14 Jul 202628 m away
Auburn, Old Dublin Road, Stillorgan, Dublin, A94HE48 Grant permission
Single-storey front porch extension with canopy, widening of existing front vehi
D26A/0445/WEBreceived 13 Jun 2026decided 5 Aug 2026307 m away
26 Woodlands Avenue, Stillorgan, Co. Dublin Grant permission
The development will consist of: (1) Demolition of existing shed, conservatory
D26A/0433/WEBreceived 10 Jun 2026decided 30 Jul 2026359 m away
Auburn, Old Dublin Road, Stillorgan, Dublin, A94HE48 Declare application invalid
Single-storey front porch extension with canopy, widening of existing front vehi
D26A/0421/WEBreceived 8 Jun 2026decided 10 Jun 2026307 m away
33, Priory Avenue, Stillorgan, Co. Dublin, A94PY59 Grant permission
(A) A rear and side ground and first floor extension to provide additional livin
D26A/0389/WEBreceived 27 May 2026decided 17 Jul 2026351 m away
National Mobility Hubs Pilot: Dún Laoghaire-Rathdown, 73 Locations Across the Council's Administrative Area, Dún Laoghaire-Rathdown Registered Application
73 mobility hub sites across the Council's administrative area
PC/IC/01/26received 22 May 2026124 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 14 Sept 2026, 20:39

Source	Licence	Fetched	Link
npad	CC-BY-4.0	14 Sept 2026, 20:39	open

Appeals 13 in 5 years within 500 m

ACP 500480 on D25A/0757/WEB Refused
received 16 Dec 2025decided 20 Mar 202662 m awayinspector's report
ACP 323691 on D25B/0375/WEB Invalid
received 18 Sept 2025decided 18 Sept 2025386 m away
ACP 322226 on D24A/0937/WEB Granted with conditions
received 3 Apr 2025decided 22 Jul 2025157 m awayinspector's report
ACP 321854 on D24A/0918 Granted with conditions
received 11 Feb 2025decided 9 Jun 2025380 m awayinspector's report
ACP 319291 on FSC2304140DR Granted with conditions
received 13 Mar 2024decided 28 Feb 2025461 m awayinspector's report
ACP 319565 on D24A/0059 Granted with conditions
received 22 Apr 2024decided 31 Jan 2025367 m awayinspector's report
ACP 321487 on D24B/0425/WEB Open
received 18 Dec 2024373 m away
ACP 320028 on D24A/0234 Granted with conditions
received 27 Jun 2024decided 19 Nov 2024493 m awayinspector's report
ACP 318913 on D23B/0510 Granted with conditions
received 23 Jan 2024decided 19 Jun 2024317 m awayinspector's report
ACP 319490 on D23A/0730 Withdrawn
received 10 Apr 2024decided 15 May 2024309 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 53 in 3 years within 500 m

56 Trees Road Lower, Blackrock, Dublin, A94 X9X5 — Opt out commencement notice
17 Sept 2026CN0147477DRD25B/0739/WEB325 m away
33 Priory Avenue, Dublin, A94 PY59 — Opt out commencement notice
16 Sept 2026CN0147294DRD26A/0389/WEB387 m away
66 The Rise, Blackrock, Dublin, A94 X9F6 — Opt out commencement notice
27 Jul 2026CN0145190DRD25B/0292349 m away
Sycamore Crescent, Dublin, A94Y8D2 — Opt out commencement notice
22 Jul 2026CN0145074DRD25B/0727/WEB199 m away
Woodlands Avenue, Dublin, Dún Laoghaire-Rathdown, A94Y7Y8 — Commencement notice
6 May 2026CN0141443DRD23A/0193388 m away
39 Woodlands Park, Dublin, Dún Laoghaire-Rathdown, A94 W279 — Opt out commencement notice
13 Apr 2026CN0140529DRD25A/0833/WEB388 m away
40 Thornhill Oaks, Mount Merrion, Blackrock, Co. Dublin., Dublin, Dún Laoghaire-Rathdown, A94 X2P7 — Opt out commencement notice
5 Jan 2026CN0136895DRD24A/0059379 m away
18 Priory Grove, Dublin, Dún Laoghaire-Rathdown, A94 PD71 — Short commencement notice
17 Dec 2025CN0136667DRD25A/0276/WEB426 m away
The Rise, Mount Merrion, Dún Laoghaire-Rathdown, A94 E283 — Commencement notice
17 Nov 2025CN0135602DRD23A/0600416 m away
51 Sycamore Road, Blackrock, Dún Laoghaire-Rathdown, A94 K8X7 — Opt out commencement notice
8 Oct 2025CN0134119DRD25A/0121/WEB112 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 14 Sept 2026, 23:44

Source	Licence	Fetched	Link
bcms	CC-BY-4.0	14 Sept 2026, 23:44	open

Sales 42 in 36 months within 500 m

€937,500

median price

€7,831/m²

median €/m²

sales

rooftop-geocoded

with listing detail

new builds

€340,000 – €2,150,000, 13 Feb 2024 to 28 Nov 2025.

Address	Sold	Price	Asking	Type	Beds	m²	€/m²	BER	Dist.
43A PRIORY AVE, STILLORGAN, DUBLIN	28 Nov 2025	€1,525,000	€1,595,000	Detached	4	227.6	6,700	C3	467 m
43 TREES ROAD, MOUNT MERRION, CO DUBLIN	28 Nov 2025	€1,300,000	€1,150,000	Semi-D	4	166	7,831	D2	434 m
79 MERRION PARK, BLACKROCK, CO DUBLIN	7 Nov 2025	€1,330,000	€1,150,000	End of Terrace	4	166	8,012	B3	412 m
50 THORNHILL OAKS, CHERRY GARTH, MOUNT MERRION	24 Sept 2025	€1,500,000	€1,395,000	Semi-D	4	165	9,091	A2	481 m
49 THE RISE, MOUNT MERRION, BLACKROCK	24 Sept 2025	€1,305,000	€1,195,000	Semi-D	4	143	9,126	C3	489 m
95 Merrion Park, Blackrock, Co. Dublin	5 Sept 2025	€1,120,000	€950,000	Terrace	3	149.9	7,472	D2	378 m
13 PRIORY DR, STILLORGAN, DUBLIN	29 Aug 2025	€935,000	€825,000	Semi-D	3	98	9,541	E2	337 m
26 ASHURST, MOUNT MERRION AVE, BLACKROCK	27 Aug 2025	€510,500	€455,000	Apartment	2	—	—	C1	309 m
32 BEAUFIELD MANOR, STILLORGAN, DUBLIN	12 Aug 2025	€393,000	€350,000	Bungalow	1	55	7,145	E2	430 m
10 BEAUFIELD MANOR, STILLORGAN, DUBLIN	7 Aug 2025	€560,000	€545,000	Apartment	2	75.3	7,437	D1	498 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, daft_gateway, 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
daft_gateway	Third-party advertisement data read from daft.ie's own JSON gateway. Not open data: internal analysis only, no redistribution of listing content. Business-contact details (the licensed PSP's name and branch) are retained per Cara DECISIONS 2026-08-19; agent phone numbers, profile images and all media URLs are dropped at fetch time and never written down. Vendor and buyer identities are not in this data.	14 Sept 2026, 22:12	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.'	14 Sept 2026, 20:32	open

Consultations 2 matched by place

Cruise Passenger Realignment Project, Dun Laoghaire Harbour 36 days left
closes 21 Oct 2026Dún Laoghaire-Rathdown County Councillea-wide
Environment: Green Dog Walkers Pledge 107 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

Tree Pruning in Foxrock
Dún Laoghaire CHEPP Area Committee Meeting7 Sept 202611Dún Laoghaire-Rathdown County Council
Taking in Charge at Oatlands Manor, Mount Merrion, Blackrock, Co. Dublin
Monthly County Council Meeting11 May 20265Dún Laoghaire-Rathdown County Council
Local Authorities Members' Association (LAMA) Spring Conference, 28th and 29th January 2026, The Connacht Hotel, Old Dublin Road, Galway
County Council12 Jan 2026F/25/26aFingal County Council
Councillor J. Walsh - Update on Planning Enforcement - Sycamore Avenue - AI099082
Blanchardstown-Mulhuddart/Castleknock/Ongar Area Committee (Services B - Strategic & General Matters)7 Nov 2024CMB/295/24Fingal County Council

Source: moderngov · fetched 14 Sept 2026, 21:51

Source	Licence	Fetched	Link
moderngov	public	14 Sept 2026, 21:51	open

Capacity and public land

No publishable utility-capacity record within the radius. 15 records from Esb substation withheld: source licence forbids redistribution; see the operator's own register.

Public land (LDA register of relevant lands)

Dublin City Council — Dublin city and suburbs
0.18 hafolio DN51982F40 m awayas of 1 Apr 2023
Dublin City Council — Dublin city and suburbs
0.19 hafolio DN57872F234 m awayas of 1 Apr 2023
The Minister for Education and Skills — Dublin city and suburbs
0.4 ha418 m awayas of 1 Apr 2023
Dún Laoghaire-Rathdown County Council — Dublin city and suburbs
10 hafolio DN229597F459 m awayas of 1 Apr 2023
Dublin City Council — Dublin city and suburbs
0.34 hafolio DN69192F461 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

Oatlands College
postprimary623 pupilsCATHOLIC247 m
Oatlands Primary School, An Edmund Rice School
primary428 pupilsCatholic389 m
S N SAN TREASA
primary430 pupilsCatholic417 m
S N NAOMH LORCAN
primary390 pupilsCatholic707 m
Coláiste Íosagáin
postprimary488 pupilsCATHOLIC873 m
Coláiste Eoin
postprimary517 pupilsCATHOLIC901 m

Stops 44 · routes 11, 116, 118, 133, 181, 2, 46n, 47, 700, 740, 740A, 740X, 7B, 7D, E1, E2, L25, S6, X1, X2

Stillorgan Pk Hotel
116, 118, 2, 47, 700, 740, 740A, 740X, 7B, 7D, E1, E232 m
Sycamore Crescent
116, 133, 2, 46n, 47, 700, 7B, 7D, E1, E2159 m
The Rise
47175 m
Oatlands College
116, 118, 47, 7B, 7D, E1, E2183 m
Priory Grove
46n, 7B, 7D, E1, E2183 m
The Rise
47216 m
Mt Merrion Ave
S6270 m
Woodlands Avenue
47347 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.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.smr	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	14 Sept 2026, 20:39
Appeals	acp	CC-BY-4.0	12 Sept 2026, 00:05
Commencements	bcms	CC-BY-4.0	14 Sept 2026, 23:44
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	daft_gateway	Third-party advertisement data read from daft.ie's own JSON gateway. Not open data: internal analysis only, no redistribution of listing content. Business-contact details (the licensed PSP's name and branch) are retained per Cara DECISIONS 2026-08-19; agent phone numbers, profile images and all media URLs are dropped at fetch time and never written down. Vendor and buyer identities are not in this data.	14 Sept 2026, 22:12
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.'	14 Sept 2026, 20:32
Consultations	consult	public	12 Sept 2026, 02:04
Council items	moderngov	public	14 Sept 2026, 21:51
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	14 Sept 2026, 21:51
Deadlines	npad	CC-BY-4.0	14 Sept 2026, 20:39
Deadlines	rzlt	CC-BY-4.0	12 Sept 2026, 00:23

Generated 15 Sept 2026, 05:45 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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