- Companies
- Specialist contractors
- Cambridge
- M.B. Mills Limited
M.B. Mills Limited
- Company number
- 06817604
- Incorporated
- 12 Feb 200917 years trading
- Registered office
- Mill House Mill Court, Great Shelford, Cambridge, CB22 5LD
- Nature of business
- Other specialised construction activities n.e.c.
M.B. Mills Limited is a 17-year-old private limited company registered in Cambridge, company number 06817604, one of 100 specialist construction companies in Cambridge. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 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 down £16K (-28%) on the year before, to £42K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £27K against £17K owed within a year: 1.6 times cover.
- 1 employee on average, down from 3 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £42K | £27K | £17K | 1 | |
| 31 Mar 2025 | £58K | £0 | £50K | £30K | 3 |
| 31 Mar 2024 | £64K | £6,559 | £33K | £12K | 3 |
| 31 Mar 2023 | £113K | £51K | £84K | £23K | 2 |
| 31 Mar 2022 | £111K | £83K | £100K | £33K | 5 |
| 31 Mar 2021 | £111K | £49K | £88K | £29K | 5 |
| 31 Mar 2020 | £131K | £45K | £119K | £41K | 5 |
| 31 Mar 2019 | £116K | £92K | £123K | £67K | |
| 31 Mar 2018 | -£55K | -£104K | £98K | ||
| 31 Mar 2017 | -£20K | -£47K | £83K | 5 |
Where M.B. Mills Limited is registered
The registered office is in Cambridge (CB22), in the South Cambridgeshire local authority area, East of England. Show CB22 5LD on a map.
Other trade companies in CB22
- Forgecambs LtdJoiners and carpenters
- Custom Window Cleaning Services LtdCleaning companies
- Lilly's Pristine Services LtdCleaning companies
- Central Integrated Services LimitedFinishing trades
- Astronat Property Services LtdFacilities management
- Gregory Motorcare LtdMechanics and garages
- Bamber Estates LimitedProperty developers
- Superior Solutions Group LtdCleaning companies
Also registered at this address
9 other companies use the same registered office as M.B. Mills Limited.
- Atlas Gardens LimitedLandscapers and gardeners
- Elvestra Capital LimitedProperty developers
- Hyrock Land LtdProperty developers
- Neil Marriott LimitedFinishing trades
- Obscrewity LtdFinishing trades
- The Bearded Butler LtdFinishing trades
- Vankit (UK) LimitedMachinery repair and installation
- Venn Services LimitedCleaning companies
- Walkers Service LimitedCleaning companies
What happens if M.B. Mills 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 06817604
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 February 2009 (17 years ago)
- Registered office
- Mill House Mill Court, Great Shelford, Cambridge, CB22 5LD
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 12 February 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Cambridge
Other active specialist construction companies registered in Cambridge.
- Mai Corporation Ltd2024
- Maple Facility Services Ltd2018
- Meg Facilities Management Limited2017
- Menzies Repairs Ltd2026
- Menzies Ventures Ltd2022
- MG Site Fabrications Limited2001
- Michael Scott Associates Limited2005
- Morgan Pools Limited2011
All specialist construction companies in Cambridge · All trades in Cambridge · Specialist contractors across the UK
Frequently asked questions
When are M.B. Mills Limited's accounts due?
M.B. Mills Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is M.B. Mills Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is M.B. Mills Limited still trading?
M.B. Mills 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 M.B. Mills Limited do?
M.B. Mills Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is M.B. Mills Limited?
M.B. Mills Limited was incorporated on 12 February 2009, 17 years ago.
What is the penalty if M.B. Mills 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 M.B. Mills 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.