- Companies
- Specialist contractors
- Cwmbran
- Glanmor Developments Limited
Glanmor Developments Limited
- Company number
- 01578455
- Incorporated
- 6 Aug 198145 years trading
- Registered office
- The Mill House Llanyravon Way, Llanyravon, Cwmbran, Gwent, NP44 8HP
- Nature of business
- Other specialised construction activities n.e.c.
Glanmor Developments Limited is a 45-year-old private limited company registered in Cwmbran, company number 01578455, one of 29 specialist construction companies in Cwmbran. Its next accounts are due at Companies House on 6 May 2027, and its first CT600 is due at HMRC on 31 July 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 £69K (+14.3%) on the year before, to £554K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £546K against £262K owed within a year: 2.1 times cover.
- 21 employees on average, up from 20 the year before.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £554K | £284K | £546K | £262K | 21 |
| 31 Jul 2024 | £485K | £48K | £451K | £221K | 20 |
| 31 Jul 2023 | £391K | £36K | £309K | £174K | 22 |
| 31 Jul 2022 | £378K | £29K | £287K | £139K | 20 |
| 31 Jul 2021 | £400K | £4,534 | £292K | £117K | 23 |
| 31 Jul 2020 | £453K | £102K | £273K | £57K | 23 |
| 31 Jul 2019 | £531K | £96K | £343K | £109K | 24 |
| 31 Jul 2018 | £518K | £58K | £338K | £156K | 27 |
| 31 Jul 2017 | £519K | £296K | £586K | £228K | 48 |
Public contracts won
Glanmor Developments Limited has 2 public sector contract awards on record, from 2022 to 2026. Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Barcud Shared Services1 award
- Newport City Council1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Barcud Shared Services | BSS24005 -Works of Adaptations | Ceiling, not shown | 2 Feb 2026 |
| Newport City Council | Private Sector Housing - Approved List Of Contractors 2022 - 2026 | Ceiling, not shown | 1 Sep 2022 |
Where Glanmor Developments Limited is registered
The registered office is in Cwmbran (NP44), in the Torfaen local authority area, Wales. Show NP44 8HP on a map.
Other trade companies in NP44
- Compliant Fire Safety Solutions LtdInstallers
- V&K Solutions LimitedCivil engineering
- Pure Clean by Nichola LtdCleaning companies
- Amsof LimitedPlumbers and heating engineers
- Marchant Home Solutions Ltd LtdBuilders
- True Level Concrete LtdBuilders
- A2Z Tech LimitedMachinery repair and installation
- Days Ventilation Solutions LtdPlumbers and heating engineers
What happens if Glanmor Developments 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 6 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 May 2027 to 6 Jun 2027 | £150 |
| 1 to 3 months late | 7 Jun 2027 to 6 Aug 2027 | £375 |
| 3 to 6 months late | 7 Aug 2027 to 6 Nov 2027 | £750 |
| More than 6 months late | From 7 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 7 Aug 2027 | £200 |
| 3 months late | 6 Nov 2027 | another £200 |
| 6 months late | 6 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 6 Aug 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
- 01578455
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 August 1981 (45 years ago)
- Registered office
- The Mill House Llanyravon Way, Llanyravon, Cwmbran, Gwent, NP44 8HP
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 6 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 11 December 2025
- Charges (mortgages)
- 2 outstanding of 3 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 Cwmbran
Other active specialist construction companies registered in Cwmbran.
- Intershell Systems Limited1989
- J.M. Vokes Limited1967
- Midas Display Systems Limited2002
- MSH Building Ltd2007
- Outdoor Innovations- Alan and Nicola Ltd2025
- P&G TM Services Ltd2025
- Pelle Groundworks Limited2024
- Pencoed Reinforcements Limited2004
All specialist construction companies in Cwmbran · All trades in Cwmbran · Specialist contractors across the UK
Frequently asked questions
When are Glanmor Developments Limited's accounts due?
Glanmor Developments Limited's next accounts are due at Companies House by 6 May 2027 (in 206 days), covering the period to 6 August 2026.
When is Glanmor Developments Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 July 2026, due by 31 July 2027, and one for the period to 6 August 2026, due by 6 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Glanmor Developments Limited still trading?
Glanmor Developments 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 Glanmor Developments Limited do?
Glanmor Developments Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Glanmor Developments Limited?
Glanmor Developments Limited was incorporated on 6 August 1981, 45 years ago.
Has Glanmor Developments Limited won public sector contracts?
Yes. Glanmor Developments Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender, most recently from Barcud Shared Services.
What is the penalty if Glanmor Developments 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 Glanmor Developments 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.