- Companies
- Property developers
- Downpatrick
- R&D Marron Construction Limited
R&D Marron Construction Limited
- Company number
- NI659437
- Incorporated
- 1 Mar 20197 years trading
- Registered office
- 64 Myra Road, Downpatrick, Co Down, BT30 7JX
- Nature of business
- Development of building projects; Construction of domestic buildings; Other building completion and finishing
R&D Marron Construction Limited is a 7-year-old private limited company registered in Downpatrick, company number NI659437, one of 34 property development companies in Downpatrick. 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 up £51K (+33.8%) on the year before, to £201K.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £310K against £133K owed within a year: 2.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 | £201K | £310K | £133K | 0 | |
| 31 Mar 2024 | £150K | £268K | £129K | 2 | |
| 31 Mar 2023 | £189K | £337K | £152K | 2 | |
| 31 Mar 2022 | £116K | £274K | £164K | 2 | |
| 31 Mar 2021 | £73K | £248K | £175K | 2 | |
| 31 Mar 2020 | £35K | £280K | £245K | 2 |
Who runs and owns R&D Marron Construction Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (3)
| Name | Role | Appointed |
|---|---|---|
| D*** M*** | Director | Mar 2019 |
| P*** M*** | Director | Mar 2019 |
| R*** M*** | Director | Mar 2019 |
People with significant control (2)
Where R&D Marron Construction Limited is registered
The registered office is in Downpatrick (BT30), in the Newry, Mourne and Down local authority area, Northern Ireland. Show BT30 7JX on a map.
Other trade companies in BT30
- Ajc GRP LtdElectricians
- S J B Painting LtdPainters and decorators
- Corinas Cleaning LtdCleaning companies
- I P Recovery LimitedMechanics and garages
- Loughview Trading Co LimitedInstallers
- Titan Fabric and Surface LtdCleaning companies
- MCC&R LtdProperty developers
- Willow Cove Contracts LtdGroundworks and demolition
What happens if R&D Marron Construction 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 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
- NI659437
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 March 2019 (7 years ago)
- Registered office
- 64 Myra Road, Downpatrick, Co Down, BT30 7JX
- Nature of business
- Development of building projects (SIC 41100)
Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 28 February 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Downpatrick
Other active property development companies registered in Downpatrick.
- Reilnice Projects Ltd2024
- Rostrevor Property Holdings Ltd2020
- Struell Ltd1978
- Top Survey (Ire) Ltd2024
- Aeeoc Ltd2026
- Ballyhornan Property 1 Limited2024
- Ballyhornan Property 2 Limited2024
- C&A Bell Ltd2022
All property development companies in Downpatrick · All trades in Downpatrick · Property developers across the UK
Frequently asked questions
When are R&D Marron Construction Limited's accounts due?
R&D Marron Construction Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is R&D Marron Construction Limited'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 R&D Marron Construction Limited still trading?
R&D Marron Construction 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 R&D Marron Construction Limited do?
R&D Marron Construction Limited is registered under Development of building projects (SIC 41100); Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is R&D Marron Construction Limited?
R&D Marron Construction Limited was incorporated on 1 March 2019, 7 years ago.
Who runs R&D Marron Construction Limited?
R&D Marron Construction Limited has 3 active directors, the longest-serving appointed in Mar 2019. Their names and service addresses are on the Companies House register.
Who owns R&D Marron Construction Limited?
2 people or companies have significant control of R&D Marron Construction Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if R&D Marron Construction 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 R&D Marron Construction 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.