- Companies
- Builders
- St Austell
- Ag Building & Plastering Limited
Ag Building & Plastering Limited
- Company number
- 11723973
- Incorporated
- 12 Dec 20187 years trading
- Registered office
- C/O DL Accounts Ltd, Burton House, Trinity Street, St Austell, Cornwall, PL25 5LS
- Nature of business
- Construction of domestic buildings
Ag Building & Plastering Limited is a 7-year-old private limited company registered in St Austell, company number 11723973, one of 29 building contractors in St Austell. Its next accounts are due at Companies House on 31 March 2027, and its first CT600 is due at HMRC on 31 December 2026.
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 £15K (+71.3%) on the year before, to -£5,932.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £331 against £15K owed within a year: 0.0 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 6 years, 2019 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | -£5,932 | £331 | £15K | 1 | |
| 31 Dec 2023 | -£21K | £321 | £32K | 0 | |
| 31 Dec 2022 | -£23K | £518 | £38K | 0 | |
| 31 Dec 2021 | -£20K | £4,077 | £42K | 2 | |
| 31 Dec 2020 | £92 | £5,476 | £8,014 | £11K | 2 |
| 31 Dec 2019 | £3,498 | £1,893 | £3,585 | £2,380 | 2 |
Where Ag Building & Plastering Limited is registered
The registered office is in St Austell (PL25), in the Cornwall local authority area, South West. Show PL25 5LS on a map.
Other trade companies in PL25
- Platinum Window Care LimitedCleaning companies
- Aspire Land Property LimitedProperty developers
- Kernow Property Portfolio LtdProperty developers
- Bould Landscapes LimitedLandscapers and gardeners
- Rustic Homes LtdProperty developers
- Rustic Property LtdProperty developers
- Balustrade Solutions Cornwall LimitedInstallers
- R&L Developments Group LtdBuilders
Also registered at this address
16 other companies use the same registered office as Ag Building & Plastering Limited.
- BR Construction (SW) LtdBuilders
- C Macnab Heating & Plumbing LtdPlumbers and heating engineers
- Calibre Plastering (SW) LtdPlasterers
- Coast & Country Fires LimitedPlumbers and heating engineers
- Cornwall Handyman Services LtdFinishing trades
- Cynibre Holdings LtdProperty developers
- D S Williams LtdSpecialist contractors
- Elite Gardening LimitedLandscapers and gardeners
- KD Construction SW LtdBuilders
- Kernow Cleaning and Home Help LtdCleaning companies
- Master Blaster (South West) LimitedCleaning companies
- Matt Jago Plumbing and Heating LtdPlumbers and heating engineers
- MK Window and Door Repairs LtdInstallers
- Opus Design & Construction LtdBuilders
- SCL Decorators LtdPainters and decorators
- The Little Linen Company (Cornwall) LimitedCleaning companies
What happens if Ag Building & Plastering 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 11723973
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 December 2018 (7 years ago)
- Registered office
- C/O DL Accounts Ltd, Burton House, Trinity Street, St Austell, Cornwall, PL25 5LS
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 11 December 2025
- Previous names
- Ashley Gates Building Ltd (until 9 Apr 2021)
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 Austell
Other active building contractors registered in St Austell.
- Ajt Developments Limited2016
- Awenek Developments Limited2022
- Blue Water Construction (Cornwall) Limited2017
- Carter Property Developments (Cornwall) Limited2021
- Cornerstone Concepts Ltd2025
- Cory Lansdowne Estates Ltd2015
- Dingle and Way Building Contractors Ltd2010
- DT Construction South West Ltd2025
All building contractors in St Austell · All trades in St Austell · Builders across the UK
Frequently asked questions
When are Ag Building & Plastering Limited's accounts due?
Ag Building & Plastering Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Ag Building & Plastering 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 December 2025, due by 31 December 2026, and one for the period to 30 June 2026, due by 30 June 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ag Building & Plastering Limited still trading?
Ag Building & Plastering 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 Ag Building & Plastering Limited do?
Ag Building & Plastering Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Ag Building & Plastering Limited?
Ag Building & Plastering Limited was incorporated on 12 December 2018, 7 years ago.
What is the penalty if Ag Building & Plastering 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 Ag Building & Plastering 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.