- Company number
- 16141524
- Incorporated
- 17 Dec 20241 year trading
- Registered office
- 1 Weston Mews, Snowdown, Dover, CT15 4FA
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
Not Just Door’S Ltd is a 1-year-old private limited company registered in Dover, company number 16141524, one of 54 building contractors in Dover. Its next accounts are due at Companies House on 30 September 2027, and its first CT600 is due at HMRC on 24 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 24 December 2025, as filed at Companies House.
Where Not Just Door’S Ltd is registered
The registered office is in Dover (CT15), in the Dover local authority area, South East. Show CT15 4FA on a map.
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- CLS Plumbing LimitedPlumbers and heating engineers
- Daly Construction and Infrastructure Solutions LtdBuilders
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- KBR Landscaping LtdLandscapers and gardeners
What happens if Not Just Door’S 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 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
- 16141524
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 December 2024 (1 year ago)
- Registered office
- 1 Weston Mews, Snowdown, Dover, CT15 4FA
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 24 December 2025
- Last confirmation statement
- 1 December 2025
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 Dover
Other active building contractors registered in Dover.
- Overcray Limited2023
- Pearson Jackson Construction Ltd2026
- Phoenix Restoration Ltd2024
- Precis Ltd2022
- R C Claringbould & Sons Limited2005
- RC Plumbing and Heating Solutions Limited2025
- Red Balloon Construction Ltd2021
- Rex Clayson Building Services Ltd2019
All building contractors in Dover · All trades in Dover · Builders across the UK
Frequently asked questions
When are Not Just Door’S Ltd's accounts due?
Not Just Door’S Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Not Just Door’S Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 24 December 2026, due by 24 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Not Just Door’S Ltd still trading?
Not Just Door’S 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 Not Just Door’S Ltd do?
Not Just Door’S Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Not Just Door’S Ltd?
Not Just Door’S Ltd was incorporated on 17 December 2024, 1 year ago.
What is the penalty if Not Just Door’S 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 Not Just Door’S 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.