- Companies
- Builders
- Milton Keynes
- 4 Sides Construction Ltd
4 Sides Construction Ltd
- Company number
- 12389172
- Incorporated
- 7 Jan 20206 years trading
- Registered office
- 18 Grassington Street Grassington, Bancroft, Milton Keynes, MK13 0QJ
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other construction installation; Other specialised construction activities n.e.c.
4 Sides Construction Ltd is a 6-year-old private limited company registered in Milton Keynes, company number 12389172, one of 358 building contractors in Milton Keynes. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for 4 Sides Construction LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £308 (-0.9%) on the year before, to £32K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £31K against £1,880 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £32K | £31K | £1,880 | 0 | |
| 31 Jan 2024 | £33K | £64K | £4,262 | 0 | |
| 31 Jan 2023 | £15K | £1,215 | £70K | £22K | 1 |
| 31 Jan 2022 | £6,511 | £51K | £3,152 | 1 | |
| 31 Jan 2021 | £653 | £32K | £46K | 1 |
Who runs and owns 4 Sides Construction Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| I*** S*** | Director | Jan 2020 |
Person with significant control
Where 4 Sides Construction Ltd is registered
The registered office is in Milton Keynes (MK13), in the Milton Keynes local authority area, South East. Show MK13 0QJ on a map.
Other trade companies in MK13
- Ddsa Services LtdBuilders
- Total Pristine Cleaning LtdCleaning companies
- A Noble's LtdCleaning companies
- North River Rhythm LimitedBuilders
- G&D Mechanical LtdPlumbers and heating engineers
- Purevue Group LtdCleaning companies
- Full Bore Plumbing & Heating LimitedElectricians
- Siva All-in-One Property Service LtdPainters and decorators
What happens if 4 Sides 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 12389172
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 January 2020 (6 years ago)
- Registered office
- 18 Grassington Street Grassington, Bancroft, Milton Keynes, MK13 0QJ
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 31 January 2026
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 Milton Keynes
Other active building contractors registered in Milton Keynes.
- A Jones Carpentry & Construction Limited2026
- A Step Properties Ltd2026
- A&Abrickwork Ltd2022
- Aaic Ltd2026
- Abk Jet Ltd2025
- Accent Construction Ltd2021
- Acmechanical Limited2026
- Acorn Building Service (MK) Ltd2018
All building contractors in Milton Keynes · All trades in Milton Keynes · Builders across the UK
Frequently asked questions
When are 4 Sides Construction Ltd's accounts due?
4 Sides Construction Ltd's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is 4 Sides Construction Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is 4 Sides Construction Ltd still trading?
4 Sides 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 4 Sides Construction Ltd do?
4 Sides Construction Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290); Other specialised construction activities n.e.c. (SIC 43999).
How old is 4 Sides Construction Ltd?
4 Sides Construction Ltd was incorporated on 7 January 2020, 6 years ago.
Who runs 4 Sides Construction Ltd?
4 Sides Construction Ltd has 1 active director, the longest-serving appointed in Jan 2020. Their names and service addresses are on the Companies House register.
Who owns 4 Sides Construction Ltd?
One person or company has significant control of 4 Sides Construction Ltd: an individual (owns 75% or more of the shares).
What is the penalty if 4 Sides 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 4 Sides 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.