- Companies
- Finishing trades
- London
- Sept Ltd
Sept Ltd
- Company number
- 13035160
- Incorporated
- 20 Nov 20205 years trading
- Registered office
- ZLR Studios, West Heath Yard, 174 Mill Lane, London, NW6 1TB
- Nature of business
- Other building completion and finishing
Sept Ltd is a 5-year-old private limited company registered in London, company number 13035160, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 29 November 2026, and its first CT600 is due at HMRC on 30 November 2026.
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 £31K (-56.1%) on the year before, to -£85K.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £56K against £151K owed within a year: 0.4 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 4 years, 2021 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2024 | -£85K | £56K | £151K | 2 | |
| 30 Nov 2023 | -£55K | £22K | £113K | 2 | |
| 30 Nov 2022 | £13K | £48K | £36K | 2 | |
| 30 Nov 2021 | -£793 | £40K | £41K | 2 |
Where Sept Ltd is registered
The registered office is in London (NW6), in the Camden local authority area, London. Show NW6 1TB on a map.
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What happens if Sept 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 29 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Nov 2026 to 29 Dec 2026 | £150 |
| 1 to 3 months late | 30 Dec 2026 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 29 May 2027 | £750 |
| More than 6 months late | From 30 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 13035160
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 November 2020 (5 years ago)
- Registered office
- ZLR Studios, West Heath Yard, 174 Mill Lane, London, NW6 1TB
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 28 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 19 November 2025
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.
- Serenequarters Rentals Limited2023
- Serrano Building and Design Limited2004
- Serstone Ltd2024
- Service and Maintenance London Ltd2026
- Service Home Protection Limited2021
- Services A-Z Ltd2021
- Services4Estates Limited2014
- Set Bros Ltd2022
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Sept Ltd's accounts due?
Sept Ltd's next accounts are due at Companies House by 29 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Sept 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 30 November 2025, due by 30 November 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sept Ltd still trading?
Sept 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 Sept Ltd do?
Sept Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Sept Ltd?
Sept Ltd was incorporated on 20 November 2020, 5 years ago.
What is the penalty if Sept 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 Sept 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.