Builder profile

Sema Construction Ltd commencement pipeline.

9 commencement notices linked to this company builder. Counties: Dublin, Wicklow. Latest commencement date: 2026-03-02.

Last updated 2026-06-13 08:30 UTC owner-supplied commencement data

9 notices

Commencement history

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Owner-supplied commencement export / CN0138908SD / 2026-03-02

The development will consist of the demolition of parts of the existing rear and side external walls and various outhouses. We intend to construct (a) a ground floor extension to the rear and side of the property (b) a first floor extens...

The development will consist of the demolition of parts of the existing rear and side external walls and various outhouses. We intend to construct (a) a ground floor extension to the rear and side of the property (b) a first floor extens...

Notice
Commencement Notice with Opt Out Declaration
Commencement
2026-03-02
Source
Owner-supplied commencement export; no public source URL
Location
Dublin, Dublin
Council
South Dublin County Council
Builder
Sema Construction Ltd
Units / floor
units unknown / 203 m2
Current commencementCommencement Notice with Opt Out DeclarationOwner exportDomestic extension / garage
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Open official planning file Map Planning ref SD25B/0487
Owner-supplied commencement export / CN0130560FL / 2025-07-01

The construction of a 2 storey, 4 bedroom detached house

The construction of a 2 storey, 4 bedroom detached house

Notice
Commencement Notice with Opt Out Declaration
Commencement
2025-07-01
Source
Owner-supplied commencement export; no public source URL
Location
Blanchardstown, Dublin 15, Dublin
Council
Fingal County Council
Builder
Sema Construction Ltd
Units / floor
1 units / 135 m2
Current commencementCommencement Notice with Opt Out DeclarationOwner exportOne-off dwelling
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref FW24A/0231
Owner-supplied commencement export / CN0127092DC / 2025-04-04

Refurbishment and extension of existing single story terraced property in Sandymount, Dublin

Refurbishment and extension of existing single story terraced property in Sandymount, Dublin

Notice
Commencement Notice with Opt Out Declaration
Commencement
2025-04-04
Source
Owner-supplied commencement export; no public source URL
Location
Dublin, Dublin
Council
Dublin City Council
Builder
Sema Construction Ltd
Units / floor
units unknown / 108 m2
Current commencementCommencement Notice with Opt Out DeclarationOwner exportDomestic extension / garage
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref WEB1369/24
Owner-supplied commencement export / CN0120658WW / 2024-09-30

new dwelling, bored well, effluent disposal system to EPA guidelines 2021, new entrance on to existing lane off existing road and associated siteworks

new dwelling, bored well, effluent disposal system to EPA guidelines 2021, new entrance on to existing lane off existing road and associated siteworks

Notice
Commencement Notice with Opt Out Declaration
Commencement
2024-09-30
Source
Owner-supplied commencement export; no public source URL
Location
Old Long Hill, Wicklow
Council
Wicklow County Council
Builder
Sema Construction Ltd
Units / floor
1 units / 190 m2
Current commencementCommencement Notice with Opt Out DeclarationOwner exportOne-off dwelling
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref 2460336
Owner-supplied commencement export / CN0120080WW / 2024-09-30

construction of a new 2 storey dwelling to the side garden of existing house, off street parking area, connection to mains services and associated site works

construction of a new 2 storey dwelling to the side garden of existing house, off street parking area, connection to mains services and associated site works

Notice
Commencement Notice with Opt Out Declaration
Commencement
2024-09-30
Source
Owner-supplied commencement export; no public source URL
Location
Kilpedder, Wicklow
Council
Wicklow County Council
Builder
Sema Construction Ltd
Units / floor
1 units / 102 m2
Current commencementCommencement Notice with Opt Out DeclarationOwner exportOne-off dwelling
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref 2360350
Owner-supplied commencement export / CN0116980DR / 2024-07-11

The construction of a part single storey / part two storey extension to the rear of the existing two storey dwelling house, along with associated internal alterations, site works and landscaping

The construction of a part single storey / part two storey extension to the rear of the existing two storey dwelling house, along with associated internal alterations, site works and landscaping

Notice
Commencement Notice with Opt Out Declaration
Commencement
2024-07-11
Source
Owner-supplied commencement export; no public source URL
Location
Dublin, Dublin
Council
Dún-Laoghaire Rathdown County Council
Builder
Sema Construction Ltd
Units / floor
1 units / 342 m2
Current commencementCommencement Notice with Opt Out DeclarationOwner exportDomestic extension / garage
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref D21A/1144
Owner-supplied commencement export / CN0085011DR / 2022-01-17

Extension and renovation of existing 2-storey house and converted attic

Extension and renovation of existing 2-storey house and converted attic

Notice
Commencement Notice With Compliance Documentation
Commencement
2022-01-17
Source
Owner-supplied commencement export; no public source URL
Location
Dublin, Dublin
Council
Dún-Laoghaire Rathdown County Council
Builder
Sema Construction Ltd
Units / floor
1 units / 210 m2
Current commencementCommencement Notice With Compliance DocumentationOwner exportDomestic extension / garage
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref D21A/0258
Owner-supplied commencement export / CN0065168DC / 2020-06-18

The development will consist of a new 3rd-floor extension set back from Lurgan Street to comprise of a New Apartment. associated alterations to the rear elevation with all associated internal alterations

The development will consist of a new 3rd-floor extension set back from Lurgan Street to comprise of a New Apartment. associated alterations to the rear elevation with all associated internal alterations

Notice
Commencement Notice With Compliance Documentation
Commencement
2020-06-18
Source
Owner-supplied commencement export; no public source URL
Location
Dublin, Dublin
Council
Dublin City Council
Owner company
SBLN Ltd
Builder
Sema Construction Ltd
Units / floor
7 units / 321 m2
Current commencementCommencement Notice With Compliance DocumentationOwner exportHousing phase
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref WEB1439/19
Owner-supplied commencement export / CN0050950DR / 2019-04-25

Demolition of existing single storey kitchen and garage. Renovation to existing house with construction of 2/3 storey extension to side and rear

Demolition of existing single storey kitchen and garage. Renovation to existing house with construction of 2/3 storey extension to side and rear

Notice
Commencement Notice With Compliance Documentation
Commencement
2019-04-25
Source
Owner-supplied commencement export; no public source URL
Location
Mount Merrion, Dublin
Council
Dún-Laoghaire Rathdown County Council
Builder
Sema Construction Ltd
Units / floor
1 units / 432 m2
Current commencementCommencement Notice With Compliance DocumentationOwner exportDomestic extension / garage
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref D18A/0210