- Companies
- Finishing trades
- Harrow
- MR4D Construction Ltd
MR4D Construction Ltd
- Company number
- 12353367
- Incorporated
- 9 Dec 20196 years trading
- Registered office
- 5 Mentmore Close, Harrow, HA3 0EA
- Nature of business
- Other building completion and finishing
MR4D Construction Ltd is a 6-year-old private limited company registered in Harrow, company number 12353367, one of 251 building finishing companies in Harrow. 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 £18K (-66.3%) on the year before, to £8,978.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £23K against £10K owed within a year: 2.2 times cover.
- 2 employees 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 | £8,978 | £23K | £10K | 2 | |
| 31 Mar 2024 | £27K | £27K | £24K | 2 | |
| 31 Mar 2023 | £41K | £19K | £20K | 2 | |
| 31 Mar 2022 | £1,809 | £48K | £500 | 0 | |
| 31 Mar 2021 | £200 | £26K | £26K | 0 | |
| 31 Dec 2020 | £1 | £1 | 0 |
Where MR4D Construction Ltd is registered
The registered office is in Harrow (HA3), in the Brent local authority area, London. Show HA3 0EA on a map.
Other trade companies in HA3
- M&M Team Solutions LimitedCleaning companies
- Asr234 LimitedCivil engineering
- Shine Bright With NV LtdMechanics and garages
- Direct Sparks LtdMachinery repair and installation
- Meral Decoration & Maintenance LtdPainters and decorators
- Add22 LtdCivil engineering
- Floyd Cleaners LimitedCleaning companies
- Amalia&Ioana LimitedBuilders
Also registered at this address
1 other company uses the same registered office as MR4D Construction Ltd.
- Rubens Constructions LtdBuilders
What happens if MR4D Construction 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
- 12353367
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 December 2019 (6 years ago)
- Registered office
- 5 Mentmore Close, Harrow, HA3 0EA
- Nature of business
- 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
- 14 October 2025
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 Harrow
Other active building finishing companies registered in Harrow.
- MXT Services Ltd2023
- NCP Construction Ltd2020
- Nick Home Improvement Limited2012
- Norms Decor Limited2015
- Northshore Construction Limited2007
- Nov Interiors Limited2018
- Nova Building Ltd2025
- NWL Building Solutions Ltd2022
All building finishing companies in Harrow · All trades in Harrow · Finishing trades across the UK
Frequently asked questions
When are MR4D Construction Ltd's accounts due?
MR4D Construction Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is MR4D Construction 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 MR4D Construction Ltd still trading?
MR4D Construction 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 MR4D Construction Ltd do?
MR4D Construction Ltd is registered under Other building completion and finishing (SIC 43390).
How old is MR4D Construction Ltd?
MR4D Construction Ltd was incorporated on 9 December 2019, 6 years ago.
What is the penalty if MR4D Construction 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 MR4D Construction 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.