- Companies
- Property developers
- Colchester
- Mills and Kirby Limited
Mills and Kirby Limited
- Company number
- 03827690
- Incorporated
- 18 Aug 199927 years trading
- Registered office
- 9 Park Lane Business Centre Park Lane, Langham, Colchester, CO4 5WR
- Nature of business
- Development of building projects
Mills and Kirby Limited is a 27-year-old private limited company registered in Colchester, company number 03827690, one of 349 property development companies in Colchester. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 30 December 2026 is due at HMRC on 30 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 up £13K (+8.8%) on the year before, to £160K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £166K against £8,328 owed within a year: more than 10 times cover.
- 4 employees on average, down from 6 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £160K | £166K | £8,328 | 4 | |
| 31 Dec 2024 | £147K | £159K | £16K | 6 | |
| 31 Dec 2023 | £145K | £249K | £113K | 6 | |
| 31 Dec 2022 | £144K | £174K | £38K | 6 | |
| 31 Dec 2021 | £173K | £220K | £49K | 8 | |
| 31 Dec 2020 | £163K | £247K | £82K | 10 | |
| 31 Dec 2019 | £174K | £161K | £0 | 4 | |
| 31 Dec 2018 | £236K | £168K | £246K | £35K | 5 |
| 31 Dec 2017 | £232K | £200K | £237K | £35K | 5 |
| 31 Dec 2016 | £214K | £187K | £231K | £42K | 5 |
Where Mills and Kirby Limited is registered
The registered office is in Colchester (CO4), in the Colchester local authority area, East of England. Show CO4 5WR on a map.
Other trade companies in CO4
- Dkdo Solutions LimitedBuilders
- Lustre Pro Cleaning LtdCleaning companies
- Little Forge Holdings LtdMechanics and garages
- Dde Services LimitedMotor traders
- Humble Motors Essex LtdMotor traders
- 239 Gre LtdBuilders
- Violet Parlour LtdCleaning companies
- Elevates Enterprise LtdProperty developers
Shared registered office
74 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 Mills and Kirby 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 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 | 31 Dec 2027 | £200 |
| 3 months late | 30 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 03827690
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 August 1999 (27 years ago)
- Registered office
- 9 Park Lane Business Centre Park Lane, Langham, Colchester, CO4 5WR
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 30 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 27 July 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Colchester
Other active property development companies registered in Colchester.
- MJH Events Ltd2011
- MJT Homes Limited2000
- MK Homes & Developments Ltd2026
- Moon Mountain Projects Ltd2021
- Morley Estates East Anglia Limited1999
- MR Engineering Consulting Services Ltd2016
- Murrill Carpentry & Building Ltd2014
- Nacton Properties Ltd2021
All property development companies in Colchester · All trades in Colchester · Property developers across the UK
Frequently asked questions
When are Mills and Kirby Limited's accounts due?
Mills and Kirby Limited's next accounts are due at Companies House by 30 September 2027 (in 351 days), covering the period to 30 December 2026.
When is Mills and Kirby Limited's CT600 due?
The CT600 for the period to 30 December 2026 is due at HMRC by 30 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Mills and Kirby Limited still trading?
Mills and Kirby 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 Mills and Kirby Limited do?
Mills and Kirby Limited is registered under Development of building projects (SIC 41100).
How old is Mills and Kirby Limited?
Mills and Kirby Limited was incorporated on 18 August 1999, 27 years ago.
What is the penalty if Mills and Kirby 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 Mills and Kirby 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.