- Companies
- Specialist contractors
- Bishop's Stortford
- Robert K Muir Ltd.
Robert K Muir Ltd.
- Company number
- 07524324
- Incorporated
- 10 Feb 201115 years trading
- Registered office
- 5 Ducketts Wharf, South Street, Bishop's Stortford, Herts, CM23 3AR
- Nature of business
- Other specialised construction activities n.e.c.
Robert K Muir Ltd. is a 15-year-old private limited company registered in Bishop's Stortford, company number 07524324, one of 50 specialist construction companies in Bishop's Stortford. 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 up £790 (+397%) on the year before, to £989.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £4,496 against £3,507 owed within a year: 1.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £989 | £4,119 | £4,496 | £3,507 | 0 |
| 31 Dec 2024 | £199 | £94 | £977 | £778 | 0 |
| 31 Dec 2023 | £690 | £2,673 | £4,499 | £3,809 | 0 |
| 31 Dec 2022 | £129 | £1,101 | £1,101 | £2,066 | 0 |
| 31 Dec 2021 | £4,811 | £32K | £33K | £30K | 0 |
| 31 Dec 2020 | £8,677 | £115K | £116K | £65K | 0 |
| 31 Dec 2019 | £2,139 | £18K | £40K | £38K | |
| 31 Dec 2018 | £100 | £100 | |||
| 31 May 2018 | £100 | £100 | |||
| 31 May 2017 | £100 | £100 |
Where Robert K Muir Ltd. is registered
The registered office is in Bishop's Stortford (CM23), in the East Hertfordshire local authority area, East of England. Show CM23 3AR on a map.
Other trade companies in CM23
- Virtual Bee Property Development LtdProperty developers
- Cerberus (Compliance & Maintain) LimitedInstallers
- Cerberus (Electrical & Renewables) LimitedInstallers
- Bishop's Stortford Tyres Hub LimitedMechanics and garages
- Da Power LtdElectricians
- Henry Daniel Building Co LtdBuilders
- Wolfe Services LimitedMachinery repair and installation
- Bells Exterior Services LimitedCleaning companies
Shared registered office
118 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 Robert K Muir 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
- 07524324
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 February 2011 (15 years ago)
- Registered office
- 5 Ducketts Wharf, South Street, Bishop's Stortford, Herts, CM23 3AR
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 7 February 2026
- Previous names
- Avalon Energy Ltd (until 5 Dec 2018)
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 Bishop's Stortford
Other active specialist construction companies registered in Bishop's Stortford.
- RPM Fire Prevention Ltd2025
- Schoeman Renovations Ltd2022
- Seda Construction Limited2012
- SMB Drywall Ltd2017
- Squibb Construction Limited2007
- Tandi Sprinklers Fire Protection Ltd2025
- TFS Holdings (Midlands) Limited2017
- Tower Property Management Ltd2016
All specialist construction companies in Bishop's Stortford · All trades in Bishop's Stortford · Specialist contractors across the UK
Frequently asked questions
When are Robert K Muir Ltd.'s accounts due?
Robert K Muir Ltd.'s next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Robert K Muir 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 Robert K Muir Ltd. still trading?
Robert K Muir 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 Robert K Muir Ltd. do?
Robert K Muir Ltd. is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Robert K Muir Ltd.?
Robert K Muir Ltd. was incorporated on 10 February 2011, 15 years ago.
What is the penalty if Robert K Muir 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 Robert K Muir 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.