- Companies
- Finishing trades
- Basingstoke
- Castleprime Construction Limited
Castleprime Construction Limited
- Company number
- 10784347
- Incorporated
- 23 May 20179 years trading
- Registered office
- Holbrook House 32 Oakley Lane, Oakley, Basingstoke, RG23 7JY
- Nature of business
- Other building completion and finishing
Castleprime Construction Limited is a 9-year-old private limited company registered in Basingstoke, company number 10784347, one of 62 building finishing companies in Basingstoke. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 down £5,173 (-25%) on the year before, to £15K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £46K against £33K owed within a year: 1.4 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 May 2025 | £15K | £42K | £46K | £33K | 1 |
| 31 May 2024 | £21K | £36K | £37K | £19K | 1 |
| 31 May 2023 | £5,958 | £25K | £26K | £20K | 1 |
| 31 May 2022 | £10K | £24K | £26K | £15K | 1 |
| 31 May 2021 | £9,605 | £29K | £30K | £22K | 1 |
| 31 May 2020 | -£11K | £4,476 | £15K | 1 | |
| 31 May 2019 | £1,454 | £14K | £13K | 1 | |
| 31 May 2018 | £1,059 | £6,092 | £5,033 |
Where Castleprime Construction Limited is registered
The registered office is in Basingstoke (RG23), in the Basingstoke and Deane local authority area, South East. Show RG23 7JY on a map.
Other trade companies in RG23
- Lit Scaffolding LtdScaffolders
- Assurevale LtdBuilders
- Fuego Build LtdProperty developers
- Charlston LtdBuilders
- Basingstoke Alarm Specialists LtdElectricians
- Dafi Heating and Plumbing LtdPlumbers and heating engineers
- Belle Bathrooms and Plumbing LtdBuilders
- PRT Lighting LtdElectricians
Also registered at this address
1 other company uses the same registered office as Castleprime Construction Limited.
- Rounces Autos LimitedMechanics and garages
What happens if Castleprime Construction 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 10784347
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 May 2017 (9 years ago)
- Registered office
- Holbrook House 32 Oakley Lane, Oakley, Basingstoke, RG23 7JY
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 22 May 2026
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 Basingstoke
Other active building finishing companies registered in Basingstoke.
- Cevv Ltd2024
- Charsley & Warren Limited2000
- Clear Space Solutions Group Ltd2025
- Colella Interiors Limited2017
- Crane Commercial Interiors Ltd2010
- Crestwood Bespoke Kitchens Ltd2026
- CTP Builders Limited2014
- D & M Build Ltd2019
All building finishing companies in Basingstoke · All trades in Basingstoke · Finishing trades across the UK
Frequently asked questions
When are Castleprime Construction Limited's accounts due?
Castleprime Construction Limited's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Castleprime Construction Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Castleprime Construction Limited still trading?
Castleprime Construction 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 Castleprime Construction Limited do?
Castleprime Construction Limited is registered under Other building completion and finishing (SIC 43390).
How old is Castleprime Construction Limited?
Castleprime Construction Limited was incorporated on 23 May 2017, 9 years ago.
What is the penalty if Castleprime Construction 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 Castleprime Construction 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.