Site report · 500 m radius · generated 13 Sept 2026, 06:21

Trimleston Gardens

Eircode —Coordinates 53.30956, -6.20516Local authority Dun Laoghaire-Rathdown County Council

What closes soonest 1 open window

Observations close 16 Sept 20263 days left
D26B/0450/WEB — application received — Conversion of existing attic space comprising of modification of existing roof
5 weeks from receipt (12 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · €20 to the council · 185 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: Trimleston or Owenstown
Settlement: Dublin city and suburbs
Electoral division: Blackrock-Booterstown
Local electoral area: Blackrock
Local authority: Dun Laoghaire-Rathdown County Council
Parcel: Tailte Éireann 6033708 (freehold), 260 m²

Census 2022, small area 267019012

304

people

104

households

110

dwellings

79.8% owner-occupied, 12.5% privately rented, 0% social. Vacancy 4.5%.

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
Natural Heritage Area (incl. proposed)	1	Booterstown Marsh
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	Dornden House; Glena; Saint Michael's
Recorded monument	4	Church; Graveyard; R149464
Special Protection Area	1	South Dublin Bay and River Tolka Estuary SPA

Sources: constraints, constraints.nha, constraints.radon, constraints.rps, 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.nha	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
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 (15.52 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 151 in 5 years within 500 m

Open for observation

37 Fosterbrook, Booterstown, Blackrock, Co. Dublin observations close 16 Sept 2026 · 3 days left
Conversion of existing attic space comprising of modification of existing roof
D26B/0450/WEBreceived 12 Aug 2026185 m away

Recent decisions and applications

103

Grant permission

Declare application invalid

Grant permission for retention

Application declared inva

59, Glenomena Park, Booterstown, Co. Dublin, A94W722 Assessment Period
Demolition of existing garage at the side, construction of a two storey, pitche
D26B/0424/WEBreceived 24 Jul 2026464 m away
No. 54 St. Helens Road, Booterstown, Blackrock, Co. Dublin, A94 VY04 Assessment Period
• Alterations to existing vehicular entrance to increase in width to 3.5M • Demo
D26A/0545/WEBreceived 17 Jul 2026222 m away
54, Woodbine Road, Booterstown, Co. Dublin, A94WF22 Assessment Period
Permission is sought for the extension and alteration of existing detached two s
D26B/0396/WEBreceived 10 Jul 2026265 m away
59 Glenomena Park, Booterstown, Blackrock, Co. Dublin, A94W722 Declare application invalid
Construction of a single-storey porch to the side, a two storey, pitched roof e
D26B/0385/WEBreceived 3 Jul 2026decided 7 Jul 2026464 m away
89, Trimleston Gardens, Booterstown, Dublin, A94HN73 Grant permission
A 26.5sqm. first floor extension to the side of the existing house requiring a
D26A/0472/WEBreceived 24 Jun 2026decided 14 Aug 202642 m away
55 Trimleston Gardens, Booterstown, Blackrock, Dublin, A94 A3C3 S5 dec exempt
Installation of single roof window (Velux type) measuring approx 940mm x 1600mm
REF8626received 4 Jun 2026decided 24 Jun 202622 m away
32, Trimleston Avenue, Merrion, Blackrock, Co. Dublin, A94X089 Refuse permission for retention
A roofed storage area to side and slightly beyond the front facade
D26B/0306/WEBreceived 25 May 2026decided 9 Jul 2026334 m away
7, Seafield Close, Booterstown, Co. Dublin, A94C935 Grant permission
•Demolition of the existing single storey extension to the side, demolition of h
D26B/0303/WEBreceived 22 May 2026decided 8 Jul 2026433 m away
55, Trimleston Gardens, Booterstown, DUBLIN, A94A3C3 S5 dec exempt
Proposed development consists of the installation of external wall insulation to
REF5426received 9 Apr 2026decided 29 Apr 202622 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 21 in 5 years within 500 m

ACP 501691 on WEB1937/26 Pending
received 10 Jul 2026455 m away
ACP 501590 on D26B/0209/WEB Pending
received 22 Jun 2026224 m away
ACP 500441 on D25A/0563/WEB Refused
received 9 Dec 2025decided 8 Apr 2026265 m awayinspector's report
ACP 322680 on D25A/0087/WEB Granted with conditions
received 3 Jun 2025decided 6 Oct 2025344 m awayinspector's report
ACP 321290 on D24A/0692/WEB Granted with conditions
received 20 Nov 2024decided 18 Mar 2025274 m awayinspector's report
ACP 321063 on D24A/0561/WEB Refused
received 15 Oct 2024decided 3 Mar 2025426 m awayinspector's report
ACP 321293 on D24A/0703/WEB Withdrawn
received 20 Nov 2024decided 19 Feb 2025274 m away
ACP 319584 on D24B/0043 Granted with conditions
received 23 Apr 2024decided 11 Oct 2024125 m away
ACP 319131 on D23A/0757 Granted with conditions
received 26 Feb 2024decided 24 Sept 20240 m awayinspector's report
ACP 319250 on D23B/0576/WEB Granted with conditions
received 11 Mar 2024decided 3 Sept 202484 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 43 in 3 years within 500 m

Booterstown Avenue, Booterstown, Dublin, A94XN72 — Commencement notice
13 Jul 2026CN0144771DRD25A/0087/WEB475 m away
13 Castle Court, Booterstown, Dublin, A94T9P3 — Commencement notice
9 Jul 2026CN0144586DRD25B/0606/WEB434 m away
34 Woodbine Park, Blackrock, Dublin, A94 A997 — Opt out commencement notice
4 Jun 2026CN0143052DRD26B/0103/WEB190 m away
9 Seafield Crescent, Blackrock, Dún Laoghaire-Rathdown, A94 R762 — Opt out commencement notice
28 May 2026CN0142595DRD25B/0325/WEB462 m away
23 Woodbine Avenue, Blackrock, Dún Laoghaire-Rathdown, A94 CR97 — Opt out commencement notice
26 May 2026CN0142729DRD25B/0527/WEB428 m away
5 Seafield Road, Blackrock, Dún Laoghaire-Rathdown, A94 Y033 — Opt out commencement notice
15 Apr 2026CN0140552DRD25B/0601/WEB406 m away
34 Seafield Road, Blackrock, Dún Laoghaire-Rathdown, A94 AP89 — Opt out commencement notice
9 Mar 2026CN0139285DRD24A/0692/WEB289 m away
34 Seafield Road, Blackrock, Dún Laoghaire-Rathdown, A94 AP89 — Short commencement notice
9 Mar 2026CN0139284DRD24A/0703/WEB289 m away
5 Bellevue Park, Booterstown, Dún Laoghaire-Rathdown, A94 RD45 — Commencement notice
1 Dec 2025CN0135987DRD24A/0873/WEB328 m away
73 Trimleston Gardens, Booterstown, Dún Laoghaire-Rathdown, A94 N529 — Short commencement notice
18 Nov 2025CN0135695DRD25B/0075102 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 70 in 36 months within 500 m

€820,000

median price

€7,900/m²

median €/m²

sales

rooftop-geocoded

with listing detail

new builds

€320,000 – €2,400,000, 5 Oct 2023 to 12 Jun 2026.

Address	Sold	Price	Asking	Type	Beds	m²	€/m²	BER	Dist.
59 WOODBINE RD, BLACKROCK, DUBLIN	12 Jun 2026	€1,655,000	€1,495,000	Semi-D	4	190.7	8,679	C3	331 m
11 GROTTO PLACE, BOOTERSTOWN, DUBLIN	30 Apr 2026	€500,000	€495,000	House	1	58	8,621	F	499 m
50 ELM PARK, MERRION ROAD, BALLSBRIDGE	27 Mar 2026	€410,000	€375,000	Apartment	1	—	—	C1	433 m
FERNDALE, 14 SEAFIELD RD, BLACKROCK	23 Mar 2026	€1,285,000	€1,095,000	Detached	5	192	6,693	E1	364 m
221 LLANDAFF TERRACE, ELM PARK, MERRION	22 Jan 2026	€790,000	€750,000	Terrace	2	100	7,900	B3	394 m
22 MERRION WOODS, STILLORGAN RD, ST HELENS	5 Dec 2025	€831,251	€745,000	Apartment	3	99	8,396	C1	490 m
49 CASTLECOURT, BOOTERSTOWN, DUBLIN	3 Dec 2025	€1,360,000	€1,350,000	Detached	4	170	8,000	D1	456 m
20 TRIMLESTON RD, BOOTERSTOWN, DUBLIN	28 Nov 2025	€1,150,000	€1,195,000	Semi-D	5	186	6,183	D2	145 m
36 DORNDEN PARK, BOOTERSTOWN, DUBLIN	22 Sept 2025	€1,311,000	€1,195,000	Bungalow	4	171	7,667	C3	203 m
5 SEAFIELD RD, BLACKROCK, DUBLIN	8 Sept 2025	€1,100,000	€925,000	Semi-D	5	189	5,820	E1	407 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. 19 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 500 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

BOOTERSTOWN BOYS
primary188 pupilsCatholic420 m
St Andrews College
postprimary1011 pupilsPRESBYTERIAN500 m
OUR LADY OF MERCY CONVENT SCHOOL
primary247 pupilsCatholic568 m
Willow Park School
postprimary206 pupilsCATHOLIC762 m
Coláiste Eoin
postprimary517 pupilsCATHOLIC772 m
Coláiste Íosagáin
postprimary488 pupilsCATHOLIC800 m

Stops 30 · routes 103X, 105X, 109, 109X, 111, 115X, 116, 118, 120A, 125, 126U, 133, 179, 180, 181, 2, 27X, 32X, 39A, 4, 41X, 46n, 47, 7, 700, 702, 740, 740A, 740X, 77X, 7A, 7B, 7D, 7E, 7n, 845, 847, 84n, 910, DART, E1, E2, GD01, S4, S6, X1, X2, X25, X26, X27, X28, X30, X31, X32

St Helen's Road
4, 7, 7A, 7E367 m
Rock Road
4, 7, 7A, 7n, 84n388 m
Merrion Road
4, 7, 702, 7A, 7n, 84n409 m
Bellevue Avenue
4, 7, 702, 7A, 7E413 m
Grotto Avenue
4, 7, 7A, 7E520 m
Seafield Road
116, 46n, 47, 7B, 7D, E1, E2, S6593 m
Seafield Road
116, 118, 47, 7B, 7D, E1, E2, S6620 m
Merrion Gates
4, 7, 7A, 7n, 84n656 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.nha	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
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, 06:21 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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