- Companies
- Property developers
- London
- Mac Construction & Developments Ltd
Mac Construction & Developments Ltd
- Company number
- 13431880
- Incorporated
- 1 Jun 20215 years trading
- Registered office
- 49 Englefield Road, London, London, N1 4HJ
- Nature of business
- Development of building projects; Construction of commercial buildings; Construction of domestic buildings; Other building completion and finishing
Mac Construction & Developments Ltd is a 5-year-old private limited company registered in London, company number 13431880, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 up £4,862 on the year before, to £4,862.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £50K against £45K owed within a year: 1.1 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £4,862 | £65 | £50K | £45K | 2 |
| 30 Sep 2024 | £0 | £11K | £7,992 | 2 | |
| 30 Sep 2023 | £255 | £29K | £21K | 1 | |
| 30 Sep 2022 | -£1,804 | £233K | £235K | 2 |
Where Mac Construction & Developments Ltd is registered
The registered office is in London (N1), in the Hackney local authority area, London. Show N1 4HJ on a map.
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Also registered at this address
1 other company uses the same registered office as Mac Construction & Developments Ltd.
- Mac & Co. Investments LtdProperty developers
What happens if Mac Construction & Developments 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 13431880
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 June 2021 (5 years ago)
- Registered office
- 49 Englefield Road, London, London, N1 4HJ
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 31 May 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.
- Mac Developments London Ltd2019
- Mac GW Ltd2024
- Mac Protection Services Ltd2021
- Mac20 Limited2020
- Macan Construction Ltd2021
- Macartin Construction Ltd2026
- Macausland Developments Ltd2020
- Macbean Developments (Woolwich) Limited2008
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Mac Construction & Developments Ltd's accounts due?
Mac Construction & Developments Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Mac Construction & Developments Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Mac Construction & Developments Ltd still trading?
Mac Construction & Developments 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 Mac Construction & Developments Ltd do?
Mac Construction & Developments Ltd is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is Mac Construction & Developments Ltd?
Mac Construction & Developments Ltd was incorporated on 1 June 2021, 5 years ago.
What is the penalty if Mac Construction & Developments 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 Mac Construction & Developments 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.