- Company number
- 09301910
- Incorporated
- 10 Nov 201411 years trading
- Registered office
- Office 303, 17 Holywell Hill, St Albans, Hertfordshire, AL1 1DT
- Nature of business
- Construction of domestic buildings
Oldrock Ltd is a 11-year-old private limited company registered in St Albans, company number 09301910, one of 36 building contractors in St Albans. 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 £1,514 (-3.8%) on the year before, to £39K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £70K against £7,895 owed within a year: 8.9 times cover.
- 1 employee on average during the year.
- 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 | £39K | £70K | £7,895 | 1 | |
| 31 Mar 2025 | £40K | £40K | £112 | 1 | |
| 31 Mar 2024 | £40K | £48K | £7,805 | 1 | |
| 31 Mar 2023 | £40K | £40K | £0 | 1 | |
| 31 Mar 2022 | £42K | £92K | £263 | 2 | |
| 31 Mar 2021 | £45K | £296K | £700 | 2 | |
| 31 Mar 2020 | £44K | £233K | £1,549 | 2 | |
| 31 Mar 2019 | £47K | £193K | £157K | ||
| 31 Mar 2018 | £45K | £175K | £115K | ||
| 31 Mar 2017 | £6,336 | £29K | £7,815 |
Where Oldrock Ltd is registered
The registered office is in St Albans (AL1), in the St Albans local authority area, East of England. Show AL1 1DT on a map.
Other trade companies in AL1
- Alban Climate LimitedPlumbers and heating engineers
- Arj Vehicle Trading LtdMotor traders
- LCB Electrical Service LimitedElectricians
- R&T Home Improvements LtdFinishing trades
- Akh Global Ventures LimitedElectricians
- Arkenstone Roof Care LtdRoofers
- Doyle House Group LimitedProperty developers
- Quinnmore Construction LimitedBuilders
Also registered at this address
2 other companies use the same registered office as Oldrock Ltd.
- Athenry Rail LimitedSpecialist contractors
- Glencarrick Construction LtdProperty developers
What happens if Oldrock 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 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
- 09301910
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 November 2014 (11 years ago)
- Registered office
- Office 303, 17 Holywell Hill, St Albans, Hertfordshire, AL1 1DT
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 15 February 2026
- Previous names
- Muldoon McKeon Ltd (until 22 Mar 2023)
Fir Rua Ltd (until 13 Oct 2017)
Muldoon Construction Ltd (until 14 Apr 2016)
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 St Albans
Other active building contractors registered in St Albans.
- Outdoors Studio Ltd2025
- Rupert Arnold & Associates Limited1998
- S.A.P. Home Improvements Ltd2014
- Scarbo Design & Build Ltd2021
- Silvershield Holdings Ltd2025
- ST Albans Construction Management Ltd2016
- Steve Toms Construction Limited2007
- Tim K Services Ltd2024
All building contractors in St Albans · All trades in St Albans · Builders across the UK
Frequently asked questions
When are Oldrock Ltd's accounts due?
Oldrock Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Oldrock Ltd'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 Oldrock Ltd still trading?
Oldrock 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 Oldrock Ltd do?
Oldrock Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Oldrock Ltd?
Oldrock Ltd was incorporated on 10 November 2014, 11 years ago.
What is the penalty if Oldrock 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 Oldrock 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.