29 Sycamore Road, Mount Merrion, Co. Dublin, A94Y3C1
Dun Laoghaire-Rathdown County CouncilD26A/0767/WEBRegistered 12 Oct 2026
Pre-validation
Planning permission for a domestic extension and works to existing two-storey…
Permission
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Latest registered: 12 Oct 2026Source: Irish local authorities
25 applications shown20 shown on map
11 Trees Avenue, Mount Merrion, Blackrock, Co. Dublin, A94 W2A8
Dun Laoghaire-Rathdown County CouncilD26B/0522/WEBRegistered 30 Sept 2026
Under assessment
Permission sought for: 1) Demolition of the existing two storey extension over…
Permission
View application No.6, Wilson Crescent, Mount Merrion, Blackrock, Co. Dublin, A94 E4X0
Dun Laoghaire-Rathdown County CouncilD26B/0491/WEBRegistered 10 Sept 2026
Invalid or incomplete
1.
Latest activity
Decision: DECLARE APPLICATION INVALID · 14 Sept 2026
DECLARE APPLICATION INVALID
PermissionDecision: DECLARE APPLICATION INVALID
View application 2, Redesdale Road, Mount Merrion, DUBLIN, A94C6K5
Dun Laoghaire-Rathdown County CouncilREF13726Registered 3 Sept 2026
Additional Information Requested
The proposed works consist of a side dormer on the western side of the property.
Latest activity
Decision: S5 REQ AI · 29 Sept 2026
Section 5
View application 9, Roebuck Avenue, Mount Merrion, Co. Dublin, A94K3V6
Dun Laoghaire-Rathdown County CouncilC3A/0005/26Registered 31 Aug 2026
Application registered
Class 3A Exemption Application…
Exemption Class 3A
View application 34 Wilson Road, Mount Merrion, Blackrock, Co. Dublin, A94F9N1
Dun Laoghaire-Rathdown County CouncilD26B/0476/WEBRegistered 29 Aug 2026
Application registered
Single-storey flat roof extension to the side and rear, including the conversion of the existing garage.
Permission
View application 4 The Rise, Mount Merrion, Blackrock, Dublin, A94KV00
Dun Laoghaire-Rathdown County CouncilD26A/0537/WEBRegistered 15 Jul 2026
Refused
Permission for subdivision of the existing site of (0.088 ha) known as No.4 The Rise…
Latest activity
Decision: REFUSE PERMISSION · 8 Sept 2026
Permission
View application 42, Sycamore Road, Mount Merrion, Blackrock, Co. Dublin, A94Y1T0
Dun Laoghaire-Rathdown County CouncilD26B/0401/WEBRegistered 14 Jul 2026
Granted
The development will consist of the renovation and extension of existing 2-storey semi-detached house to include (i)…
Latest activity
Final grant · 7 Oct 2026
Permission
View application 32, Deerpark Road, Mount Merrion, Dublin, A94X7K4
Dun Laoghaire-Rathdown County CouncilD26A/0521/WEBRegistered 9 Jul 2026
Under appeal
A) Demolition of existing c.178sqm two-storey (plus non-habitable attic space), 4 bedrooms dwelling…
Latest activity
Appeal lodged · 28 Sept 2026
PermissionDecision: GRANT PERMISSION
View application 4, The Rise, Mount Merrion, DUBLIN, A94KV00
Dun Laoghaire-Rathdown County CouncilV/052/26Registered 6 Jul 2026
Grant Certificate Of Exemption
1…
Latest activity
Decision: GRANT CERTIFICATE OF EXEMPTION · 30 Jul 2026
Certificate of Exemption - Part V
View application 4, The Rise, Mount Merrion, Dublin, A94KV00
Dun Laoghaire-Rathdown County CouncilD26A/0509/WEBRegistered 6 Jul 2026
Invalid or incomplete
Permission for subdivision of the existing site of (0.088 ha) known as No.4 The Rise…
Latest activity
Decision: DECLARE APPLICATION INVALID · 8 Jul 2026
DECLARE APPLICATION INVALID
PermissionDecision: DECLARE APPLICATION INVALID
View application 57, Deerpark Road, Mount Merrion, DUBLIN, A94F761
Dun Laoghaire-Rathdown County CouncilV/050/26Registered 30 Jun 2026
Grant Certificate Of Exemption
3…
Latest activity
Decision: GRANT CERTIFICATE OF EXEMPTION · 24 Jul 2026
Certificate of Exemption - Part V
View application 57, Deerpark Road, Mount Merrion, Dublin, A94F761
Dun Laoghaire-Rathdown County CouncilD26A/0493/WEBRegistered 30 Jun 2026
Under appeal
The development will include the demolition of - the existing end of terrace part single-storey rear storage structure…
Latest activity
Appeal lodged · 21 Sept 2026
PermissionDecision: GRANT PERMISSION
View application 47, Deerpark Road, Mount Merrion, Co. Dublin, A94A9X5
Dun Laoghaire-Rathdown County CouncilD26A/0488/WEBRegistered 29 Jun 2026
Granted
The proposed amendment consists of the omission of the previously permitted detached garden studio from the approved…
Latest activity
Final grant · 23 Sept 2026
Permission
View application 26, Wilson Road, Mount Merrion, Blackrock, Co Dublin, A94R8X3
Dun Laoghaire-Rathdown County CouncilD26A/0480/WEBRegistered 25 Jun 2026
Under appeal
Demolition of the existing garage; construction of a single storey extension to the rear and side…
Latest activity
Appeal lodged · 10 Sept 2026
PermissionDecision: GRANT PERMISSION
View application 63, Deerpark Road, Mount Merrion, Blackrock, Dublin
Dun Laoghaire-Rathdown County CouncilREF8826Registered 10 Jun 2026
Not Exempt – Planning Permission Required
Change of use from (food preparation) retail to café/restaurant.
Latest activity
Decision: S5 DEC NOT EXEMPT · 7 Jul 2026
Section 5
View application 36, Deerpark Road, Mount Merrion, Blackrock, Co Dublin, A94Y3K5
Dun Laoghaire-Rathdown County CouncilD26B/0337/WEBRegistered 9 Jun 2026
Granted
Ground level single storey rear extension, alterations to existing rear extension + 2No. flat roof rooflights to rear…
Latest activity
Final grant · 26 Aug 2026
Permission
View application 48, Deerpark Road, Mount Merrion, Co Dublin, A94K3T7
Dun Laoghaire-Rathdown County CouncilD26B/0323/WEBRegistered 2 Jun 2026
Granted
A first floor extension to front, side & rear of dwelling (floor area 31.30m.sq.)…
Latest activity
Final grant · 26 Aug 2026
Permission
View application 48, Deerpark Road, Mount Merrion, Co Dublin, A94K3T7
Dun Laoghaire-Rathdown County CouncilD26B/0316/WEBRegistered 28 May 2026
Invalid or incomplete
A first floor extension to front, side & rear…
Latest activity
Decision: DECLARE APPLICATION INVALID · 29 May 2026
DECLARE APPLICATION INVALID
PermissionDecision: DECLARE APPLICATION INVALID
View application 2, Redesdale Court, Rededale Road, Mount Merrion, Co Dublin, A94C6K5
Dun Laoghaire-Rathdown County CouncilD26B/0296/WEBRegistered 20 May 2026
Refused
Construct a dormer roof extension to the side and rear…
Latest activity
Decision: REFUSE PERMISSION · 14 Jul 2026
Permission
View application 11, Mather Road North, Mount Merrion, Dublin, A94CF62
Dun Laoghaire-Rathdown County CouncilD26B/0293/WEBRegistered 18 May 2026
GRANT PERMISSION & GRANT RETENTION
Retention is sought for existing entrance pillar and permission is sought for the demolition of existing shed…
Latest activity
Final grant · 12 Aug 2026
Permission
View application Significant development
Cedar House Nursing Home, 35 Mount Anville Park, Mount Merrion, Dublin 14, D14F240
Dun Laoghaire-Rathdown County CouncilD26A/0363/WEBRegistered 13 May 2026
Granted
The development will consist of:The refurbishment and reconfiguring of the existing facility, which contains 24 bedrooms…
Latest activity
Decision: GRANT PERMISSION · 21 Sept 2026
Permission
View application 2, Redesdale Court, Redesdale Road, Mount Merrion, Co Dublin, A94C6K5
Dun Laoghaire-Rathdown County CouncilD26B/0284/WEBRegistered 12 May 2026
Invalid or incomplete
Construct a dormer roof extension to the side and rear…
Latest activity
Decision: DECLARE APPLICATION INVALID · 14 May 2026
DECLARE APPLICATION INVALID
PermissionDecision: DECLARE APPLICATION INVALID
View application 100, The Rise, Mount Merrion, Blackrock, Co. Dublin, A94N7Y3
Dun Laoghaire-Rathdown County CouncilD26A/0346/WEBRegistered 7 May 2026
Granted
1) Demolition to existing Chimney to the rear, 2) Proposed two story extension to the rear…
Latest activity
Final grant · 29 Jul 2026
Permission
View application 93, South Avenue, Mount Merrion, Co. Dublin, A94F9X6
Dun Laoghaire-Rathdown County CouncilD26A/0332Registered 30 Apr 2026
Granted
Additions and alterations to detached dwelling, including demolition of' single storey side roofs, main roof, balcony…
Latest activity
Final grant · 29 Jul 2026
Permission
View application