- Company number
- 15595190
- Incorporated
- 26 Mar 20242 years trading
- Registered office
- Caeronen, Gwbert Road, Cardigan, SA43 1PH
- Nature of business
- Construction of domestic buildings; Renting and leasing of construction and civil engineering machinery and equipment
RTS Lime Conservation Ltd is a 2-year-old private limited company registered in Cardigan, company number 15595190, one of 26 building contractors in Cardigan. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House.
Public contracts won
RTS Lime Conservation Ltd has one public sector contract award on record (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.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Pembrokeshire County Council | Framework for the Hire of Plant and Machinery | Ceiling, not shown | 12 May 2026 |
Where RTS Lime Conservation Ltd is registered
The registered office is in Cardigan (SA43), in the Ceredigion local authority area, Wales. Show SA43 1PH on a map.
Other trade companies in SA43
- Gilo Holdings LtdProperty developers
- DB Aero Services LimitedMachinery repair and installation
- Kirkwood & Pask LimitedSpecialist contractors
- We Builds Enterprises LimitedSpecialist contractors
- Tanzen Energy LimitedElectricians
- Coreceltic LimitedFinishing trades
- Ffenestri GD Windows LtdGlaziers
- Water Street Carms LimitedProperty developers
What happens if RTS Lime Conservation 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 15595190
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 March 2024 (2 years ago)
- Registered office
- Caeronen, Gwbert Road, Cardigan, SA43 1PH
- Nature of business
- Construction of domestic buildings (SIC 41202)
Renting and leasing of construction and civil engineering machinery and equipment (SIC 77320) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 25 March 2026
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 Cardigan
Other active building contractors registered in Cardigan.
- T I D Holdings Limited2005
- T. I. Davies A'i Fab Cyf.2002
- Tony James Limited2003
- Whitby Building Solutions Limited2012
- Wyn Thomas Timber Framed Homes Limited2010
- Adref Construction Ltd2020
- Aneurin Mathias Carpentry Roofing and Building Ltd2024
- Asd and Sons Construction Ltd2025
All building contractors in Cardigan · All trades in Cardigan · Builders across the UK
Frequently asked questions
When are RTS Lime Conservation Ltd's accounts due?
RTS Lime Conservation Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is RTS Lime Conservation Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is RTS Lime Conservation Ltd still trading?
RTS Lime Conservation 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 RTS Lime Conservation Ltd do?
RTS Lime Conservation Ltd is registered under Construction of domestic buildings (SIC 41202); Renting and leasing of construction and civil engineering machinery and equipment (SIC 77320).
How old is RTS Lime Conservation Ltd?
RTS Lime Conservation Ltd was incorporated on 26 March 2024, 2 years ago.
Has RTS Lime Conservation Ltd won public sector contracts?
Yes. RTS Lime Conservation Ltd has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Pembrokeshire County Council.
What is the penalty if RTS Lime Conservation 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 RTS Lime Conservation 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.