- Company number
- 13795595
- Incorporated
- 12 Dec 20214 years trading
- Registered office
- 20 East Drive, Highfields Caldecote, Cambridge, CB23 7NZ
- Nature of business
- Construction of domestic buildings; Management consultancy activities other than financial management
CB23 Ltd is a 4-year-old private limited company registered in Cambridge, company number 13795595, one of 238 building contractors in Cambridge. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £79K (-35.4%) on the year before, to -£302K.
- Net assets rose in 0 of 3 year-on-year comparisons on record.
- Current assets of £2.7M against £279K owed within a year: 9.5 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | -£302K | £188K | £2.7M | £279K | 2 |
| 31 Dec 2024 | -£223K | £66K | £1.8M | £8,129 | 2 |
| 31 Dec 2023 | -£216K | £46K | £1.3M | £16K | 1 |
| 31 Dec 2022 | -£28K | £25K | £1.2M | £1.8M | 0 |
Who runs and owns CB23 Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| A*** P*** | Director | Dec 2021 |
| M*** S*** | Director | Dec 2021 |
Person with significant control
Where CB23 Ltd is registered
The registered office is in Cambridge (CB23), in the South Cambridgeshire local authority area, East of England. Show CB23 7NZ on a map.
Other trade companies in CB23
- Hayberry Developments LtdProperty developers
- L & A's Care LimitedCleaning companies
- Colton Brickwork LimitedInstallers
- Xpray Group LtdCleaning companies
- Precision Vehicle Solutions LtdMechanics and garages
- Kayb Paint Work LtdPainters and decorators
- Planted Spaces LtdLandscapers and gardeners
- Georgi Garage LtdMechanics and garages
What happens if CB23 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 13795595
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 December 2021 (4 years ago)
- Registered office
- 20 East Drive, Highfields Caldecote, Cambridge, CB23 7NZ
- Nature of business
- Construction of domestic buildings (SIC 41202)
Management consultancy activities other than financial management (SIC 70229) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 11 November 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Cambridge
Other active building contractors registered in Cambridge.
- Chesterton Enterprise Development Trading Limited2026
- Ciampa & Sons Ltd2021
- Colin Barnes Building Services Ltd2013
- Complete Construction (Cambridge) Ltd2022
- Conington Building Consultants Limited2020
- Construct Building Services Limited2021
- Cook & Cook Construction Ltd2012
- Cook & Cook Consultancy Limited2017
All building contractors in Cambridge · All trades in Cambridge · Builders across the UK
Frequently asked questions
When are CB23 Ltd's accounts due?
CB23 Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is CB23 Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is CB23 Ltd still trading?
CB23 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 CB23 Ltd do?
CB23 Ltd is registered under Construction of domestic buildings (SIC 41202); Management consultancy activities other than financial management (SIC 70229).
How old is CB23 Ltd?
CB23 Ltd was incorporated on 12 December 2021, 4 years ago.
Who runs CB23 Ltd?
CB23 Ltd has 2 active directors, the longest-serving appointed in Dec 2021. Their names and service addresses are on the Companies House register.
Who owns CB23 Ltd?
One person or company has significant control of CB23 Ltd: an individual (owns 75% or more of the shares).
What is the penalty if CB23 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 CB23 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.