- Companies
- Property developers
- London
- 1ST Developments Chelsea Limited
1ST Developments Chelsea Limited
- Company number
- 10886666
- Incorporated
- 27 Jul 20179 years trading
- Registered office
- 14 Bonhill Street, London, EC2A 4DJ
- Nature of business
- Development of building projects
1ST Developments Chelsea Limited is a 9-year-old private limited company registered in London, company number 10886666, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £97K (+92.5%) on the year before, to £201K.
- Net assets rose in 3 of 7 year-on-year comparisons on record.
- Current assets of £190K against £66K owed within a year: 2.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £201K | £141K | £190K | £66K | 1 |
| 31 Jul 2024 | £105K | £53K | £103K | £79K | 1 |
| 31 Jul 2023 | £97K | £32K | £109K | £94K | 2 |
| 31 Jul 2022 | £113K | £1,451 | £272K | £244K | 2 |
| 31 Jul 2021 | £129K | £6,070 | £348K | £312K | 2 |
| 31 Jul 2020 | £130K | £8,463 | £127K | £65K | 2 |
| 31 Jul 2019 | £134K | £83K | £169K | £42K | 2 |
| 31 Jul 2018 | £107K | £133K | £143K | £43K |
Where 1ST Developments Chelsea Limited is registered
The registered office is in London (EC2A), in the Islington local authority area, London. Show EC2A 4DJ on a map.
Other trade companies in EC2A
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- Auraglasspartitions LtdGlaziers
- A2D Professional Cleaning LtdCleaning companies
- Matson Co. LtdProperty developers
- Paint Hub LimitedMechanics and garages
- SJK Construction & Management LtdBuilders
- Cenlora Cleaning Group LtdCleaning companies
Shared registered office
32 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 1ST Developments Chelsea 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 10886666
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 July 2017 (9 years ago)
- Registered office
- 14 Bonhill Street, London, EC2A 4DJ
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 19 November 2025
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.
- 1TR Development Ltd2022
- 2 Pembroke Walk Limited2019
- 2 V Construction Ltd2009
- 20 Send Barns Lane Limited2021
- 202021 Limited2017
- 2026 Developments Ltd2026
- 21 Bridge Street Development Ltd2026
- 21 Construction Group Ltd2021
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are 1ST Developments Chelsea Limited's accounts due?
1ST Developments Chelsea Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is 1ST Developments Chelsea Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is 1ST Developments Chelsea Limited still trading?
1ST Developments Chelsea 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 1ST Developments Chelsea Limited do?
1ST Developments Chelsea Limited is registered under Development of building projects (SIC 41100).
How old is 1ST Developments Chelsea Limited?
1ST Developments Chelsea Limited was incorporated on 27 July 2017, 9 years ago.
What is the penalty if 1ST Developments Chelsea 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 1ST Developments Chelsea 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.