Planning application · Co. Dublin

A 0.6291 Ha site at, Knockmitten Lane, Dublin, D12 V447

Decision due 26 Oct 2026

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Key facts

  • Planning application SD26A/0144W at A 0.6291 Ha Site At, Knockmitten Lane, Dublin, D12 V447: Change of use of Buildings Nos. 1 and 2 from vacant warehouse units…
  • The applicant is Ventside Unlimited Company. The agent is Patricia Thornton.
  • It was received by South Dublin County Council on 28 Sep 2026.
  • Status: Decision due 26 Oct 2026.
  • The council's decision is due on 26 Oct 2026. Building work can only follow a grant of permission.

Source: the South Dublin County Council planning register, checked 13 Oct 2026. Open the council's file

Planning applications in Co. Dublin

What and where

Change of use of Buildings Nos. 1 and 2 from vacant warehouse units…

The change of use of Buildings Nos. 1 and 2 from vacant warehouse units to a car service garage; the demolition of part of Building No. 1 at ground floor (43 sq. m), and first floor (to provide a double-height space) (213 sq. m) and the provision of an extension to the northern elevation, overall reducing the floor area by 93 sq. m, from 1,021 sq. m to 928 sq. m; the demolition of part of Building No. 2 (4 sq. m) and the provision of a first floor mezzanine (115 sq. m), increasing the floor area from 726 sq. m to 837 sq. m; the provision of a new auto carwash, 2 No. valet bays and plant (137 sq. m); and a new inspection pod (20 m²). The development will also include: 7 No. car parking spaces (including accessible parking spaces); 61 No. car storage spaces; 4 No. electric vehicle charging spaces; bicycle parking; elevational changes; flues; illuminated signage; bin stores; and all associated works above and below ground.

Location
Knockmitten Lane, Co. Dublin Map
Planning reference
SD26A/0144W
Application type
Permission
Council planning fileGet alerts

Numbers and dates

Floor area
435 m²
Estimated construction value
€530k to €670kOur estimate from floor area and project type, at January 2026 prices, building works only. Not a stated figure. How we estimate
Received
28 Sep 2026
Decision due
26 Oct 2026

Outlook

What happens next

The council's decision is due on 26 Oct 2026. Building work can only follow a grant of permission.

Work packages named so far

  • Services and drainageNamed in the application description

An outlook from the planning record, not a tender or a confirmed start date.

Documents and evidence

Check the record

  • Council planning fileThe application file SD26A/0144W on planning.agileapplications.ie: drawings, reports and the decision.Open the council's file

Reviewed build intelligence

What the documents establish

Government document review

The 10 August council request leaves the warehouse-to-garage proposal at further-information stage. The June site plan needs coordinated bus-corridor, air-quality and signage responses before an outcome is established.

2 official documents inspected · Checked 2026-09-07 · Official file index

Existing warehouses are reconfigured for garage use

June proposal subject to the August information request

What the evidence says
The proposal reduces Building 1 from 1,021 to 928 m² and increases Building 2 from 726 to 837 m², alongside a 137 m² carwash/valet building and a 20 m² inspection pod. Drawing 101 P6 distinguishes existing buildings from the extension. The 10 August letter requests further information; it does not grant the conversion.

Why it may matter — interpretation
Garage fit-out, steelwork and service suppliers can separate conversion and demolition from new ancillary work.

What is not established
Permission, commencement, installed workshop equipment and supplier appointments are not established. These areas do not replace the retained project headline.

Inspect the evidence

Signed request for additional information · p.1
Development description; ADDITIONAL INFORMATION · Issued 2026-08-10 · Decision Order 0904; signed 10 August 2026; not a grant · Checked 2026-09-07

Development description; ADDITIONAL INFORMATION

Proposed garage site plan · p.1
AREAS; DRAWING KEY; Proposed Site Plan 101 P6 · Issued 2026-06-02 · Job 6576 drawing 101 revision P6; planning issue 2 June 2026; received 15 June; base date August 2025 · Checked 2026-09-07

AREAS; DRAWING KEY; Proposed Site Plan 101 P6

Combined solvent emissions need further evidence

Outstanding air-quality request dated 10 August

What the evidence says
FI item 1 says the assessment reports individual volatile organic compounds below the relevant guidelines, but still requires confirmation that combined VOC output from the proposed operations accords with air-quality guidelines.

Why it may matter — interpretation
Air-quality specialists and extraction designers need to assess the combined operation before treating the submitted plant arrangement as settled.

What is not established
A satisfactory response, accepted emissions design and installed extraction performance were not reviewed.

Inspect the evidence

Signed request for additional information · p.1
1. Supporting Assessments; combined VOCs output · Issued 2026-08-10 · Decision Order 0904; signed 10 August 2026; not a grant · Checked 2026-09-07

1. Supporting Assessments; combined VOCs output

The garage layout must accommodate the bus-corridor scheme

Road and service coordination still required after submitted revision P6

What the evidence says
The June plan hatches permanent and temporary NTA acquisition land along Nangor Road. FI item 2 requires updated drawings removing potential conflicts with the Tallaght/Clondalkin to City Centre Core Bus Corridor, supporting NTA coordination, and details of levels, tie-ins, construction traffic, utilities and surface/foul-water connections. It also requests 2.0 m by 45 m entrance visibility splays in both directions.

Why it may matter — interpretation
Roads and civil teams need the coordinated northern boundary and utility interface before fixing the siteworks design.

What is not established
NTA acceptance, a revised coordinated drawing and council approval are not established.

Inspect the evidence

Proposed garage site plan · p.1
Land permanently acquired; Land temporarily acquired; Nangor Road · Issued 2026-06-02 · Job 6576 drawing 101 revision P6; planning issue 2 June 2026; received 15 June; base date August 2025 · Checked 2026-09-07

Land permanently acquired; Land temporarily acquired; Nangor Road

Signed request for additional information · p.2
2. Site Layout (a)-(c) · Issued 2026-08-10 · Decision Order 0904; signed 10 August 2026; not a grant · Checked 2026-09-07

2. Site Layout (a)-(c)

Seven southern-elevation signs require a reduced proposal

Signage revision requested before the application can be decided

What the evidence says
FI item 3 says the seven signs proposed on Building 1 south elevation exceed the two-sign guideline for a single elevation. It requires revised proposals addressing sign numbers, material, dimensions and lighting.

Why it may matter — interpretation
Sign and facade suppliers should obtain the revised agreed design before manufacture.

What is not established
An accepted sign count, lighting specification and final permission were not reviewed.

Inspect the evidence

Signed request for additional information · p.2
3. Signage · Issued 2026-08-10 · Decision Order 0904; signed 10 August 2026; not a grant · Checked 2026-09-07

3. Signage
Remaining document questions
  • Has a coordinated response resolved combined VOC emissions, CBC land and utility interfaces, visibility and signage?

The declared pages of these government-published PDFs were visually inspected. Other catalogue files, later compliance, procurement and installed specifications were not established. Historical weekly membership is retained separately from these document dates.

How we know this

From the South Dublin County Council planning register, checked 13 Oct 2026. We link to the council's own file so you can check the official record before you act. Facts from the planning documents were read from the documents in that file.

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