- Companies
- Property developers
- Letchworth Garden City
- MK45 Developments Limited
MK45 Developments Limited
- Company number
- 16185725
- Incorporated
- 15 Jan 20251 year trading
- Registered office
- Devonshire Business Centre (A13), Works Road, Letchworth Garden City, SG6 1GJ
- Nature of business
- Development of building projects
MK45 Developments Limited is a 1-year-old private limited company registered in Letchworth Garden City, company number 16185725, one of 60 property development companies in Letchworth Garden City. Its next accounts are due at Companies House on 15 October 2026, and its first CT600 is due at HMRC on 14 January 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where MK45 Developments Limited is registered
The registered office is in Letchworth Garden City (SG6), in the North Hertfordshire local authority area, East of England. Show SG6 1GJ on a map.
Other trade companies in SG6
- Combined Auto Services LimitedMotor traders
- G.O.A.L Energy Services LtdElectricians
- Bedmond Construction LtdProperty developers
- Barski Property Care LtdBuilders
- PK Construction and Stones LimitedBuilders
- McCormack Maintenance LtdCivil engineering
- Nitdas Cleaning Solution LtdCleaning companies
- Nbtotalproperty LtdLandscapers and gardeners
Shared registered office
38 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if MK45 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 15 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 16 Oct 2026 to 15 Nov 2026 | £150 |
| 1 to 3 months late | 16 Nov 2026 to 15 Jan 2027 | £375 |
| 3 to 6 months late | 16 Jan 2027 to 15 Apr 2027 | £750 |
| More than 6 months late | From 16 Apr 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
- 16185725
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 January 2025 (1 year ago)
- Registered office
- Devonshire Business Centre (A13), Works Road, Letchworth Garden City, SG6 1GJ
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 14 January 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 Letchworth Garden City
Other active property development companies registered in Letchworth Garden City.
- Nomoli Holdings (Roydon) Limited2024
- Orchard Rose Developments Ltd2022
- Orchestra (Campton) Limited2018
- Orchestra (Colne) Ltd2026
- Orchestra (Commercial) Ltd2026
- Orchestra (Halstead) Ltd2025
- Orchestra (Helmdon) Limited2024
- Orchestra (Leighton) Limited2025
All property development companies in Letchworth Garden City · All trades in Letchworth Garden City · Property developers across the UK
Frequently asked questions
When are MK45 Developments Limited's accounts due?
MK45 Developments Limited's next accounts are due at Companies House by 15 October 2026 (in 2 days), covering the period to 31 January 2026.
When is MK45 Developments Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 14 January 2026, due by 14 January 2027, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is MK45 Developments Limited still trading?
MK45 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 MK45 Developments Limited do?
MK45 Developments Limited is registered under Development of building projects (SIC 41100).
How old is MK45 Developments Limited?
MK45 Developments Limited was incorporated on 15 January 2025, 1 year ago.
What is the penalty if MK45 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 MK45 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.