- Companies
- Property developers
- Camberley
- Sei Contractor Limited
Sei Contractor Limited
- Company number
- 11162457
- Incorporated
- 22 Jan 20188 years trading
- Registered office
- 99 Rosemary Gardens, Blackwater, Camberley, Surrey, GU17 0NJ
- Nature of business
- Development of building projects
Sei Contractor Limited is a 8-year-old private limited company registered in Camberley, company number 11162457, one of 106 property development companies in Camberley. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
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 £101K (+61.2%) on the year before, to £266K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £297K against £57K owed within a year: 5.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2019 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £266K | £110K | £297K | £57K | 2 |
| 31 Jan 2025 | £165K | £28K | £160K | £27K | 2 |
| 31 Jan 2024 | £192K | £0 | £353K | £162K | 2 |
| 31 Jan 2023 | £109K | £130K | £248K | £130K | 2 |
| 31 Jan 2022 | £35K | £0 | £192K | £144K | 2 |
| 31 Jan 2021 | £24K | £70K | £275K | £229K | 2 |
| 31 Jan 2020 | £113K | £17K | £177K | £89K | 2 |
| 31 Jan 2019 | £40K | £25K | £126K | £92K | 2 |
Public contracts won
Sei Contractor Limited has one public sector contract award on record; the ones with their own published value total £40K (2025). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Notting Hill Genesis | Demolition | £40K | 12 Nov 2025 |
Where Sei Contractor Limited is registered
The registered office is in Camberley (GU17), in the Hart local authority area, South East. Show GU17 0NJ on a map.
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What happens if Sei Contractor 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 31 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 11162457
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 January 2018 (8 years ago)
- Registered office
- 99 Rosemary Gardens, Blackwater, Camberley, Surrey, GU17 0NJ
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 13 June 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 Camberley
Other active property development companies registered in Camberley.
- Semee House Improvement Limited2017
- Shingler Property Development Limited2012
- Solid Instal System Ltd2026
- Southfile Properties (Basingstoke) Limited1976
- Stanulet Buildworks Ltd2026
- Stevens' Homes Group Limited2018
- Strong Property (UK) Limited2014
- Surrey Hills Design & Build Ltd2014
All property development companies in Camberley · All trades in Camberley · Property developers across the UK
Frequently asked questions
When are Sei Contractor Limited's accounts due?
Sei Contractor Limited's next accounts are due at Companies House by 31 October 2027 (in 384 days), covering the period to 31 January 2027.
When is Sei Contractor Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Sei Contractor Limited still trading?
Sei Contractor 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 Sei Contractor Limited do?
Sei Contractor Limited is registered under Development of building projects (SIC 41100).
How old is Sei Contractor Limited?
Sei Contractor Limited was incorporated on 22 January 2018, 8 years ago.
Has Sei Contractor Limited won public sector contracts?
Yes. Sei Contractor Limited has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £40K), most recently from Notting Hill Genesis.
What is the penalty if Sei Contractor 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 Sei Contractor 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.