- Companies
- Groundworks and demolition
- Cambridge
- N Cook & Sons Ltd
N Cook & Sons Ltd
- Company number
- 11417075
- Incorporated
- 15 Jun 20188 years trading
- Registered office
- The Barn, Musgrave Farm, Horningsea Road,, Fen Ditton,, Cambridge, CB5 8SZ
- Nature of business
- Site preparation
N Cook & Sons Ltd is a 8-year-old private limited company registered in Cambridge, company number 11417075, one of 14 groundworks and demolition companies in Cambridge. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £2,793 (-5.6%) on the year before, to -£52K.
- Net assets rose in 0 of 6 year-on-year comparisons on record.
- Current assets of £1,721 against £57K owed within a year: 0.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£52K | £1,721 | £57K | 0 | |
| 30 Jun 2024 | -£50K | £2,254 | £56K | 2 | |
| 30 Jun 2023 | -£31K | £2,291 | £38K | 2 | |
| 30 Jun 2022 | -£6,996 | £12K | £22K | 2 | |
| 30 Jun 2021 | -£3,192 | £13K | £18K | 2 | |
| 30 Jun 2020 | £239 | £19K | £23K | 2 | |
| 30 Jun 2019 | £2,353 | £13K | £10K | 2 |
Where N Cook & Sons Ltd is registered
The registered office is in Cambridge (CB5), in the South Cambridgeshire local authority area, East of England. Show CB5 8SZ on a map.
Other trade companies in CB5
- Ottimo Bathrooms LtdPlumbers and heating engineers
- HB Building Projects LtdBuilders
- Rentrentuk LtdProperty developers
- Urgent Pro Plumbing LtdPlumbers and heating engineers
- Bright Nook Services LtdCleaning companies
- Jetline Aero LtdMachinery repair and installation
- Home and Garden Cam Service LtdLandscapers and gardeners
- SJL Energy Services LimitedMachinery repair and installation
Shared registered office
67 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 N Cook & Sons 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 11417075
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 June 2018 (8 years ago)
- Registered office
- The Barn, Musgrave Farm, Horningsea Road,, Fen Ditton,, Cambridge, CB5 8SZ
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 20 January 2026
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Cambridge
Other active groundworks and demolition companies registered in Cambridge.
- NJ Kemp Groundworks Limited2017
- Sam Grain Contracts Ltd2012
- SGF Excavations Ltd2022
- Spartan Concrete Cutting Ltd2018
- Universal Groundworks Ltd2022
- Butler Bros Ltd2013
- Cambridge Diamond Drilling Limited2012
- Cambridge Plant Ltd2014
All groundworks and demolition companies in Cambridge · All trades in Cambridge · Groundworks and demolition across the UK
Frequently asked questions
When are N Cook & Sons Ltd's accounts due?
N Cook & Sons Ltd's next accounts are due at Companies House by 31 March 2027 (in 168 days), covering the period to 30 June 2026.
When is N Cook & Sons Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is N Cook & Sons Ltd still trading?
N Cook & Sons 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 N Cook & Sons Ltd do?
N Cook & Sons Ltd is registered under Site preparation (SIC 43120).
How old is N Cook & Sons Ltd?
N Cook & Sons Ltd was incorporated on 15 June 2018, 8 years ago.
What is the penalty if N Cook & Sons 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 N Cook & Sons 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.