- Company number
- 11350785
- Incorporated
- 9 May 20188 years trading
- Registered office
- 2 Cowper Gardens, London, N14 4NR
- Nature of business
- Construction of domestic buildings
MMM 17 Ltd is a 8-year-old private limited company registered in London, company number 11350785, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
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 £5,589 (+5.8%) on the year before, to £102K.
- Net assets rose in 5 of 5 year-on-year comparisons on record.
- Current assets of £107K against £4,865 owed within a year: more than 10 times cover.
- 4 employees on average, up from 3 the year before.
- Balance sheets on record for 8 years, 2019 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £102K | £107K | £4,865 | 4 | |
| 31 May 2025 | £96K | £107K | £12K | 3 | |
| 31 May 2024 | £80K | £87K | £9,570 | 2 | |
| 31 May 2023 | £40K | £47K | £7,275 | 2 | |
| 31 May 2022 | £8,595 | £8,595 | 0 | ||
| 31 May 2021 | £699 | £699 | 0 | ||
| 31 May 2020 | 0 | ||||
| 31 May 2019 | £2 | £2 |
Where MMM 17 Ltd is registered
The registered office is in London (N14), in the Enfield local authority area, London. Show N14 4NR on a map.
Other trade companies in N14
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- Ekia Solutions LtdElectricians
- S&N Finishes LtdBuilders
- Soley London Group LtdElectricians
- Interior Build 1 LtdFinishing trades
- Niclons Engineering and Management LtdFinishing trades
- Kevlar Heating LimitedPlumbers and heating engineers
- Neonova Investments LtdProperty developers
What happens if MMM 17 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2029 | 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
- 11350785
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 May 2018 (8 years ago)
- Registered office
- 2 Cowper Gardens, London, N14 4NR
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 8 May 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 London
Other active building contractors registered in London.
- MMM Group Ltd2021
- MMP Builders Ltd2023
- MMR Pointing London Ltd2026
- MMS Decorators (UK) Ltd2013
- MMT Contractors Ltd2022
- MN&Co Ltd.2015
- MND Contractors Limited2012
- Mo Engineering and Construction Ltd2025
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are MMM 17 Ltd's accounts due?
MMM 17 Ltd's next accounts are due at Companies House by 29 February 2028 (in 504 days), covering the period to 31 May 2027.
When is MMM 17 Ltd's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is MMM 17 Ltd still trading?
MMM 17 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 MMM 17 Ltd do?
MMM 17 Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is MMM 17 Ltd?
MMM 17 Ltd was incorporated on 9 May 2018, 8 years ago.
What is the penalty if MMM 17 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 MMM 17 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.