- Companies
- Finishing trades
- Londonderry
- Mulderg Interior Linings Limited
Mulderg Interior Linings Limited
- Company number
- NI622424
- Incorporated
- 22 Jan 201412 years trading
- Registered office
- 6 Gortilea Road Gortilea Road, Claudy, Londonderry, BT47 4EN
- Nature of business
- Other building completion and finishing
Mulderg Interior Linings Limited is a 12-year-old private limited company registered in Londonderry, company number NI622424, one of 23 building finishing companies in Londonderry. Its next accounts are due at Companies House on 29 December 2026, and the CT600 for the period to 29 March 2026 is due at HMRC on 29 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 up £7,265 (+4.1%) on the year before, to £185K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £382K against £235K owed within a year: 1.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £185K | £382K | £235K | 1 | |
| 31 Mar 2024 | £177K | £352K | £205K | 1 | |
| 31 Mar 2023 | £134K | £242K | £130K | 1 | |
| 31 Mar 2022 | £51K | £218K | £181K | 1 | |
| 31 Mar 2021 | £50K | £110K | £52K | 1 | |
| 31 Mar 2020 | £52K | £99K | £77K | 1 | |
| 30 Mar 2019 | £42K | £90K | £76K | ||
| 31 Mar 2018 | £21K | £99K | £99K | ||
| 31 Mar 2017 | £15K | £90K | £89K | ||
| 31 Mar 2016 | £12K | £88K | £87K |
Where Mulderg Interior Linings Limited is registered
The registered office is in Londonderry (BT47), in the Derry City and Strabane local authority area, Northern Ireland. Show BT47 4EN on a map.
Other trade companies in BT47
- RNK Contracts LimitedGroundworks and demolition
- Den Electrical LtdElectricians
- BDK Consulting LimitedProperty developers
- Oakline Engineering LtdInstallers
- Killew Property Services LimitedFacilities management
- PH Autobody LimitedMechanics and garages
- C Doherty Autos LtdMechanics and garages
- CPMH LtdBuilders
What happens if Mulderg Interior Linings Limited 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 29 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Dec 2026 to 29 Jan 2027 | £150 |
| 1 to 3 months late | 30 Jan 2027 to 29 Mar 2027 | £375 |
| 3 to 6 months late | 30 Mar 2027 to 29 Jun 2027 | £750 |
| More than 6 months late | From 30 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Mar 2027 | £200 |
| 3 months late | 29 Jun 2027 | another £200 |
| 6 months late | 29 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 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
- NI622424
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 January 2014 (12 years ago)
- Registered office
- 6 Gortilea Road Gortilea Road, Claudy, Londonderry, BT47 4EN
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 29 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 22 January 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Londonderry
Other active building finishing companies registered in Londonderry.
- Northwest Joinery Ltd2004
- NPF Group Ltd2020
- Rendering Services Ireland Ltd2024
- RGC Contracts Ltd2021
- Rom Partitions Ltd2020
- S & P Ceilings & Partitions Limited2025
- Stewart & McConnell Building Contractors (Derry) Limited1979
- T Linton Contracts Ltd2026
All building finishing companies in Londonderry · All trades in Londonderry · Finishing trades across the UK
Frequently asked questions
When are Mulderg Interior Linings Limited's accounts due?
Mulderg Interior Linings Limited's next accounts are due at Companies House by 29 December 2026 (in 77 days), covering the period to 29 March 2026.
When is Mulderg Interior Linings Limited's CT600 due?
The CT600 for the period to 29 March 2026 is due at HMRC by 29 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 December 2026.
Is Mulderg Interior Linings Limited still trading?
Mulderg Interior Linings Limited 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 Mulderg Interior Linings Limited do?
Mulderg Interior Linings Limited is registered under Other building completion and finishing (SIC 43390).
How old is Mulderg Interior Linings Limited?
Mulderg Interior Linings Limited was incorporated on 22 January 2014, 12 years ago.
What is the penalty if Mulderg Interior Linings Limited 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 Mulderg Interior Linings Limited 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.