- Companies
- Builders
- Potters Bar
- Grangemoor Builders Ltd
Grangemoor Builders Ltd
- Company number
- 02138377
- Incorporated
- 8 Jun 198739 years trading
- Registered office
- 136 Tolmers Road, Cuffley, Potters Bar, Hertfordshire, EN6 4JR
- Nature of business
- Construction of domestic buildings
Grangemoor Builders Ltd is a 39-year-old private limited company registered in Potters Bar, company number 02138377, one of 84 building contractors in Potters Bar. Its next accounts are due at Companies House on 27 October 2026, and its first CT600 is due at HMRC on 27 October 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Grangemoor Builders LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £52K (-48.1%) on the year before, to £56K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £363K against £84K owed within a year: 4.3 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 27 Oct 2024 | £56K | £363K | £84K | 2 | |
| 28 Oct 2023 | £108K | £375K | £39K | 2 | |
| 29 Oct 2022 | £83K | £7,272 | £326K | £266K | 2 |
| 30 Oct 2021 | £26K | £325K | £249K | 2 | |
| 29 Oct 2020 | £8,107 | £252K | £215K | 2 | |
| 30 Oct 2019 | £11K | £239K | £257K | 2 | |
| 30 Oct 2018 | £3,372 | £393K | £400K | ||
| 31 Oct 2017 | £52K | £3,761 | £62K | £20K | |
| 31 Oct 2016 | £16K | ||||
| 31 Oct 2015 | £52K | £26K | £68K | £35K |
Where Grangemoor Builders Ltd is registered
The registered office is in Potters Bar (EN6), in the Welwyn Hatfield local authority area, East of England. Show EN6 4JR on a map.
Other trade companies in EN6
- Hertfordshire Roofing and Guttering Repairs LtdRoofers
- Vata RC Frames LtdSpecialist contractors
- Avanti Airtech LimitedPlumbers and heating engineers
- Azmaj Group LtdFinishing trades
- Burbridge Roofing and Build LtdBuilders
- Roman Way Holdings LtdProperty developers
- Westshire Property Services LimitedFinishing trades
- Oska Auto LtdMechanics and garages
Also registered at this address
1 other company uses the same registered office as Grangemoor Builders Ltd.
- Grangemoor Estates LimitedProperty developers
What happens if Grangemoor Builders 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 27 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Oct 2026 to 27 Nov 2026 | £150 |
| 1 to 3 months late | 28 Nov 2026 to 27 Jan 2027 | £375 |
| 3 to 6 months late | 28 Jan 2027 to 27 Apr 2027 | £750 |
| More than 6 months late | From 28 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 28 Jan 2027 | £200 |
| 3 months late | 27 Apr 2027 | another £200 |
| 6 months late | 27 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 27 Jan 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
- 02138377
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 June 1987 (39 years ago)
- Registered office
- 136 Tolmers Road, Cuffley, Potters Bar, Hertfordshire, EN6 4JR
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 26 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 27 October 2024
- Last confirmation statement
- 7 May 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
- Previous names
- John Leahy and Son (Builders) Ltd. (until 31 Jul 2025)
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 Potters Bar
Other active building contractors registered in Potters Bar.
- Hannah Nursery Limited2016
- Haslemere Construction Limited1985
- Heritage Construct Ltd2024
- Highsky Development Limited2021
- Hoad Ltd2017
- Houstanding Builders Ltd2018
- Imperium Construction and Development Limited2024
- Innov8 Projects Ltd2019
All building contractors in Potters Bar · All trades in Potters Bar · Builders across the UK
Frequently asked questions
When are Grangemoor Builders Ltd's accounts due?
Grangemoor Builders Ltd's next accounts are due at Companies House by 27 October 2026 (in 14 days), covering the period to 27 January 2026.
When is Grangemoor Builders Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 27 October 2025, due by 27 October 2026, and one for the period to 27 January 2026, due by 27 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Grangemoor Builders Ltd still trading?
Grangemoor Builders 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 Grangemoor Builders Ltd do?
Grangemoor Builders Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Grangemoor Builders Ltd?
Grangemoor Builders Ltd was incorporated on 8 June 1987, 39 years ago.
What is the penalty if Grangemoor Builders 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 Grangemoor Builders 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.