- Companies
- Civil engineering
- Eastleigh
- Sandbox Contracting Ltd
Sandbox Contracting Ltd
- Company number
- 12310798
- Incorporated
- 12 Nov 20196 years trading
- Registered office
- 7 West Links, Tollgate, Chandler's Ford, Eastleigh, SO53 3TG
- Nature of business
- Construction of other civil engineering projects n.e.c.
Sandbox Contracting Ltd is a 6-year-old private limited company registered in Eastleigh, company number 12310798, one of 40 civil engineering contractors in Eastleigh. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £22K (-2.7%) on the year before, to £801K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £1.6M against £917K owed within a year: 1.8 times cover.
- 4 employees on average, up from 3 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £801K | £533K | £1.6M | £917K | 4 |
| 30 Nov 2024 | £823K | £195K | £1.8M | £1.1M | 3 |
| 30 Nov 2023 | £549K | £191K | £1.2M | £746K | 3 |
| 30 Nov 2022 | £594K | £214K | £1.4M | £895K | 3 |
| 30 Nov 2021 | £121K | £546K | £435K | 1 | |
| 30 Nov 2020 | £57K | £388K | £342K | 1 |
Where Sandbox Contracting Ltd is registered
The registered office is in Eastleigh (SO53), in the Eastleigh local authority area, South East. Show SO53 3TG on a map.
Other trade companies in SO53
- Surface Dressing UK LtdCivil engineering
- Audin Construction LtdSpecialist contractors
- Jelly West Developments LtdProperty developers
- Climate and Renewables Service LtdPlumbers and heating engineers
- McCarthy Construct LimitedProperty developers
- Cura Projects LimitedFinishing trades
- Tubmate LtdMachinery repair and installation
- Brook Hill Developments LimitedProperty developers
Also registered at this address
1 other company uses the same registered office as Sandbox Contracting Ltd.
- Sandbox Asset Management LtdSpecialist contractors
What happens if Sandbox Contracting 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 31 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 12310798
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 November 2019 (6 years ago)
- Registered office
- 7 West Links, Tollgate, Chandler's Ford, Eastleigh, SO53 3TG
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 2 December 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Eastleigh
Other active civil engineering contractors registered in Eastleigh.
- SS Site Engineering Ltd2021
- Stone Consulting Engineers Limited2003
- Structeam Ltd2010
- Surface Dressing UK Ltd2026
- Vincent-Bradley Homes Ltd2018
- Yan Construction Engineering Limited2017
- 4JH Ltd2022
- Ajr Civil & Marine Limited2016
All civil engineering contractors in Eastleigh · All trades in Eastleigh · Civil engineering across the UK
Frequently asked questions
When are Sandbox Contracting Ltd's accounts due?
Sandbox Contracting Ltd's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Sandbox Contracting Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Sandbox Contracting Ltd still trading?
Sandbox Contracting 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 Sandbox Contracting Ltd do?
Sandbox Contracting Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Sandbox Contracting Ltd?
Sandbox Contracting Ltd was incorporated on 12 November 2019, 6 years ago.
What is the penalty if Sandbox Contracting 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 Sandbox Contracting 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.