- Company number
- NI668325
- Incorporated
- 9 Mar 20206 years trading
- Registered office
- 20C Balliniska Road, Derry, BT48 0NA
- Nature of business
- Construction of domestic buildings
Grianan Contracts Ltd is a 6-year-old private limited company registered in Derry, company number NI668325, one of 34 building contractors in Derry. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £27K (-60.2%) on the year before, to £18K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £18K | £0 | £7,436 | 1 | |
| 31 Mar 2024 | £46K | £25K | £15K | 1 | |
| 31 Mar 2023 | £61K | £43K | £33K | 1 | |
| 31 Mar 2022 | £33K | £26K | £22K | 1 | |
| 31 Mar 2021 | £4,738 | £21K | £20K | 1 | |
| 31 Mar 2020 | £1 | £1 |
Where Grianan Contracts Ltd is registered
The registered office is in Derry (BT48), in the Derry City and Strabane local authority area, Northern Ireland. Show BT48 0NA on a map.
Other trade companies in BT48
- Neat & Nurtured Vics Cleaning LimitedCleaning companies
- Ked Brick & Blockwork LtdBuilders
- Zapcars LtdMotor traders
- TMC Electrics LtdElectricians
- Northern Diesels LtdMotor traders
- Coyle Reclamation & Salvage LtdSpecialist contractors
- George MCG Mechanical LtdElectricians
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Also registered at this address
20 other companies use the same registered office as Grianan Contracts Ltd.
- BDN Energy LtdSpecialist contractors
- Carrickmaquigley Construction UK LtdProperty developers
- CPH Services LtdPlumbers and heating engineers
- D.S.S Plant Contracts LtdCivil engineering
- DBMC Investments LtdPlasterers
- Eccles Electrical LimitedElectricians
- Fastek Services LimitedFacilities management
- GMC Consultancy Ireland LtdPlumbers and heating engineers
- J J McGowan Flooring LimitedFloor and wall tilers
- JGMC Contracts LimitedPlasterers
- Leisure Construction LtdBuilders
- Mac and Co Construction LtdBuilders
- Maz Building Contractors LtdProperty developers
- MCG Contracts Holdings LimitedSpecialist contractors
- Motoworld LK LimitedMotor traders
- PD Motor Group NI LtdMotor traders
- Premier Construction Contracts (UK) LimitedSpecialist contractors
- RLB Property Management LtdSpecialist contractors
- S Boyle Civils (NI) LimitedCivil engineering
- Tuatha Contracts LtdGroundworks and demolition
What happens if Grianan Contracts Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- NI668325
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 March 2020 (6 years ago)
- Registered office
- 20C Balliniska Road, Derry, BT48 0NA
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 27 February 2026
- Previous names
- Robert McClay Contracts Limited (until 28 Mar 2025)
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Derry
Other active building contractors registered in Derry.
- J. Donaghey Construction Ltd1999
- JMC Drylining Limited2025
- JMCC Builders Ltd2012
- Jok Drylining Limited2025
- Kania Developments Limited2015
- Kirion Homes Ltd2020
- Leisure Construction Ltd2022
- Limavady Road Residential Limited2025
All building contractors in Derry · All trades in Derry · Builders across the UK
Frequently asked questions
When are Grianan Contracts Ltd's accounts due?
Grianan Contracts Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Grianan Contracts Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Grianan Contracts Ltd still trading?
Grianan Contracts Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Grianan Contracts Ltd do?
Grianan Contracts Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Grianan Contracts Ltd?
Grianan Contracts Ltd was incorporated on 9 March 2020, 6 years ago.
What is the penalty if Grianan Contracts Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Grianan Contracts Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.