- Companies
- Finishing trades
- London
- Mark Alexander Developments Limited
Mark Alexander Developments Limited
- Company number
- 05681785
- Incorporated
- 20 Jan 200620 years trading
- Registered office
- 4 Cavendish Square, London, W1G 0PG
- Nature of business
- Other building completion and finishing
Mark Alexander Developments Limited is a 20-year-old private limited company registered in London, company number 05681785, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £32K (-3%) on the year before, to £1M.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £1.1M against £60K owed within a year: more than 10 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 Dec 2025 | £1M | £1.1M | £1.1M | £60K | 1 |
| 31 Dec 2024 | £1.1M | £1.1M | £1.2M | £101K | 1 |
| 31 Dec 2023 | £1.1M | £1.1M | £1.1M | £45K | 2 |
| 31 Dec 2022 | £1.1M | £1.3M | £1.3M | £261K | 2 |
| 31 Dec 2021 | £889K | £967K | £1M | £123K | 2 |
| 31 Dec 2020 | £791K | £832K | £928K | £140K | 2 |
| 31 Dec 2019 | £711K | £762K | £806K | £96K | 2 |
| 31 Dec 2018 | £714K | £838K | £842K | £129K | 3 |
| 31 Dec 2017 | £622K | £686K | £697K | £77K | 3 |
| 31 Dec 2016 | £576K | £615K | £658K | £83K | 2 |
Where Mark Alexander Developments Limited is registered
The registered office is in London (W1G), in the Westminster local authority area, London. Show W1G 0PG on a map.
Other trade companies in W1G
- Frontier Overland LimitedMotor traders
- Hento Enterprise LtdMotor traders
- Devonshire Projects LtdBuilders
- D-Raw Projects LimitedProperty developers
- Trembit UK LtdElectricians
- Civic Stone Asset Management LtdBuilders
- Oak Rise Placemakers LtdProperty developers
- TPS Kensington LimitedProperty developers
Also registered at this address
1 other company uses the same registered office as Mark Alexander Developments Limited.
- Bracnaclean Services LimitedCleaning companies
What happens if Mark Alexander Developments 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 05681785
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 January 2006 (20 years ago)
- Registered office
- 4 Cavendish Square, London, W1G 0PG
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 20 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 London
Other active building finishing companies registered in London.
- Mark Fixit Limited2022
- Mark&C.O. Property Services Ltd2013
- Markoz Building Ltd2011
- Marku Steel Fixing Ltd2020
- Markus Schmid Kitchens Ltd2015
- Markwest Ltd2024
- Marlen Graphics Ltd2018
- Marlie Interiors Limited2008
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Mark Alexander Developments Limited's accounts due?
Mark Alexander Developments Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Mark Alexander Developments Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Mark Alexander Developments Limited still trading?
Mark Alexander Developments 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 Mark Alexander Developments Limited do?
Mark Alexander Developments Limited is registered under Other building completion and finishing (SIC 43390).
How old is Mark Alexander Developments Limited?
Mark Alexander Developments Limited was incorporated on 20 January 2006, 20 years ago.
What is the penalty if Mark Alexander Developments 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 Mark Alexander Developments 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.