- Companies
- Property developers
- London
- First Base MK Limited
First Base MK Limited
- Company number
- 12867023
- Incorporated
- 9 Sep 20206 years trading
- Registered office
- 40 Queen Anne Street, London, W1G 9EL
- Nature of business
- Development of building projects
First Base MK Limited is a 6-year-old private limited company registered in London, company number 12867023, one of 14,100 property development companies in London. 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 unchanged on the year before, at £0.
- Net assets rose in 0 of 4 year-on-year comparisons on record.
- 2 employees on average during the year.
- 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 Mar 2025 | £0 | £706K | 2 | ||
| 31 Mar 2024 | £0 | £685K | 2 | ||
| 31 Mar 2023 | £0 | £468K | 3 | ||
| 31 Mar 2022 | £0 | £284K | 3 | ||
| 31 Mar 2021 | £0 | £143K | 3 |
Where First Base MK Limited is registered
The registered office is in London (W1G), in the Islington local authority area, England. Show W1G 9EL on a map.
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Also registered at this address
20 other companies use the same registered office as First Base MK Limited.
- 22 Amelia Street Management LimitedProperty developers
- Blackbottle LimitedProperty developers
- FBFF Soapworks LimitedProperty developers
- FBLP LimitedProperty developers
- First Affordable LimitedProperty developers
- First Base Esq LimitedProperty developers
- First Base Ev LimitedProperty developers
- First Base Land LimitedProperty developers
- Great Marlborough Estates LimitedProperty developers
- Henley Land LimitedProperty developers
- Highwood Greenfield LimitedProperty developers
- Hudd Student East LimitedProperty developers
- Hudd Student Living LimitedProperty developers
- Hudd Student West LimitedProperty developers
- Huddersfield Kingfisher LimitedProperty developers
- Priam Developments LimitedProperty developers
- RM Auto UK Properties LimitedMotor traders
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- Spink Partner Co LimitedProperty developers
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What happens if First Base MK 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
- 12867023
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 September 2020 (6 years ago)
- Registered office
- 40 Queen Anne Street, London, W1G 9EL
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 8 September 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 London
Other active property development companies registered in London.
- First Beach Capital Ltd2023
- First Call Estates Ltd2004
- First Forge Ltd2025
- First Garden and Paving Limited2008
- First Mile End Ltd2021
- First Move Development Limited2025
- First Oak Caerleon Developments Limited2022
- First Oak Exeter Developments Limited2022
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are First Base MK Limited's accounts due?
First Base MK Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is First Base MK 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 First Base MK Limited still trading?
First Base MK 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 First Base MK Limited do?
First Base MK Limited is registered under Development of building projects (SIC 41100).
How old is First Base MK Limited?
First Base MK Limited was incorporated on 9 September 2020, 6 years ago.
What is the penalty if First Base MK 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 First Base MK 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.