Builder profile

MJ Duffy & Sons Ltd commencement pipeline.

10 commencement notices linked to this company builder. Counties: Louth. Latest commencement date: 2025-11-07.

Last updated 1 Aug 2026 10:26 UTC owner-supplied commencement data

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This profile is published because the company builder appears on repeated, unsuppressed owner-export commencement notices. It is a public-display pipeline sample, not total-market coverage, and private home-address or personal-owner fields are not rendered.

Open current starts

10 notices

Commencement history

This profile renders company-builder data only. Private home addresses and owner personal details are not displayed.

Owner-supplied commencement export / CN0135420LH / 2025-11-07

4no. new 3- bedroomed semi- detached dwellinghouses and all ancillary and associated site development works including site clearance works, car parking spaces, hard and soft landscaping and boundary treatment works

4no. new 3- bedroomed semi- detached dwellinghouses and all ancillary and associated site development works including site clearance works, car parking spaces, hard and soft landscaping and boundary treatment works

Notice
Commencement Notice With Compliance Documentation
Commencement
2025-11-07
Source
Owner-supplied commencement export; no public source URL
Location
Castlebellingham, Louth
Council
Louth County Council
Owner company
MJ Duffy & Sons Ltd
Builder
MJ Duffy & Sons Ltd
Units / floor
4 units / 1,807 m²
Current commencementCommencement Notice With Compliance DocumentationOwner exportSubstantial building works
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref 2582
Owner-supplied commencement export / CN0127309LH / 2025-04-07

Erection of two no. individual timber framed bedroom cabins within a walled garden and ancillary site works as phase two of extension to existing private clinic/addiction treatment centre use on site

Erection of two no. individual timber framed bedroom cabins within a walled garden and ancillary site works as phase two of extension to existing private clinic/addiction treatment centre use on site

Notice
Commencement Notice With Compliance Documentation
Commencement
2025-04-07
Source
Owner-supplied commencement export; no public source URL
Location
Ardee, Louth
Council
Louth County Council
Builder
MJ Duffy & Sons Ltd
Units / floor
units unknown / 102 m²
Current commencementCommencement Notice With Compliance DocumentationOwner exportOther commencementProtected structure
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref 17894
Owner-supplied commencement export / CN0112270LH / 2024-04-05

PHASE 3- CONSTRUCTION OF 10no. RESIDENTIAL UNITS - 2no. 3 BEDROOMED SEMI-DETACHED HOUSES & 1no. BLOCK OF DUPLEX APARTMENTS COMPRISING 4no. 2 BEDROOM APRTMENTS AND 4no. 3 BEDROOM APARTMENTS AND ALL ANCILALRY AND ASSOCIATED SITE WORKS

PHASE 3- CONSTRUCTION OF 10no. RESIDENTIAL UNITS - 2no. 3 BEDROOMED SEMI-DETACHED HOUSES & 1no. BLOCK OF DUPLEX APARTMENTS COMPRISING 4no. 2 BEDROOM APRTMENTS AND 4no. 3 BEDROOM APARTMENTS AND ALL ANCILALRY AND ASSOCIATED SITE WORKS

Notice
Commencement Notice With Compliance Documentation
Commencement
2024-04-05
Source
Owner-supplied commencement export; no public source URL
Location
Castlebellingham, Louth
Council
Louth County Council
Owner company
MJ Duffy & Sons Ltd
Builder
MJ Duffy & Sons Ltd
Units / floor
20 units / 1,117 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 21187
Owner-supplied commencement export / CN0097756LH / 2023-02-15

CONSTRUCTION OF NEW APARTMENT BLOCK 1 - UNITS 3-10

CONSTRUCTION OF NEW APARTMENT BLOCK 1 - UNITS 3-10

Notice
Commencement Notice With Compliance Documentation
Commencement
2023-02-15
Source
Owner-supplied commencement export; no public source URL
Location
Castlebellingham, Louth
Council
Louth County Council
Owner company
MJ Duffy & Sons Ltd
Builder
MJ Duffy & Sons Ltd
Units / floor
20 units / 823 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 21187
Owner-supplied commencement export / CN0097169LH / 2023-01-26

PHASE 1 - CONSTRUCTION OF UNITS 1 & 2 GERNON PLACE, MAIN STREET, CA STLEBELLINGHAM

PHASE 1 - CONSTRUCTION OF UNITS 1 & 2 GERNON PLACE, MAIN STREET, CA STLEBELLINGHAM

Notice
Commencement Notice With Compliance Documentation
Commencement
2023-01-26
Source
Owner-supplied commencement export; no public source URL
Location
Castlebellingham, Louth
Council
Louth County Council
Owner company
MJ Duffy & Sons Ltd
Builder
MJ Duffy & Sons Ltd
Units / floor
20 units / 170 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 21187
Owner-supplied commencement export / CN0093156LH / 2022-09-08

Erection of two no. individual timber framed bedroom cabins within a walled garden and ancillary site works as phase two of extension to existing private clinic/addiction treatment centre use on site

Erection of two no. individual timber framed bedroom cabins within a walled garden and ancillary site works as phase two of extension to existing private clinic/addiction treatment centre use on site

Notice
Commencement Notice With Compliance Documentation
Commencement
2022-09-08
Source
Owner-supplied commencement export; no public source URL
Location
Ardee, Louth
Council
Louth County Council
Builder
MJ Duffy & Sons Ltd
Units / floor
units unknown / 102 m²
Current commencementCommencement Notice With Compliance DocumentationOwner exportOther commencementProtected structure
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref 17894
Owner-supplied commencement export / CN0084380LH / 2021-12-20

Retention and permission for the refurbishment and extension of the existing house

Retention and permission for the refurbishment and extension of the existing house

Notice
Commencement Notice Without Compliance Documentation
Commencement
2021-12-20
Source
Owner-supplied commencement export; no public source URL
Location
Drogheda, Louth
Council
Louth County Council
Builder
MJ Duffy & Sons Ltd
Units / floor
1 units / 17 m²
Current commencementCommencement Notice Without Compliance DocumentationOwner exportDomestic extension / garageProtected structure
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref 20481
Owner-supplied commencement export / CN0066673LH / 2020-07-13

Permission for upgrading of existing effluent treatment system with new treatment plant and sand polishing filter and all associated site development works

Permission for upgrading of existing effluent treatment system with new treatment plant and sand polishing filter and all associated site development works

Notice
Commencement Notice Without Compliance Documentation
Commencement
2020-07-13
Source
Owner-supplied commencement export; no public source URL
Location
Dundalk, Louth
Council
Louth County Council
Builder
MJ Duffy & Sons Ltd
Units / floor
units unknown / 1 m²
Current commencementCommencement Notice Without Compliance DocumentationOwner exportOther commencement
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref 19/1029
Owner-supplied commencement export / CN0035421LH / 2018-01-31

Proposed extension to an existing dwelling house and associated site works

Proposed extension to an existing dwelling house and associated site works

Notice
Commencement Notice With Compliance Documentation
Commencement
2018-01-31
Source
Owner-supplied commencement export; no public source URL
Location
Omeath, Louth
Council
Louth County Council
Builder
MJ Duffy & Sons Ltd
Units / floor
1 units / floor unknown
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 17147
Owner-supplied commencement export / CN0025748LH / 2017-03-28

Proposed new dwellinghouse and all associated siteworks

Proposed new dwellinghouse and all associated siteworks

Notice
Commencement Notice With Compliance Documentation
Commencement
2017-03-28
Source
Owner-supplied commencement export; no public source URL
Location
Liberties, Carlingford., Louth
Council
Louth County Council
Builder
MJ Duffy & Sons Ltd
Units / floor
1 units / floor unknown
Current commencementCommencement Notice With Compliance DocumentationOwner exportOne-off dwelling
Source note: owner-supplied commencement export; no public source URL Open matched PlanningBrief lead Map Planning ref 15761