- Company number
- 13933810
- Incorporated
- 22 Feb 20224 years trading
- Registered office
- 12 High Street, Carcroft, Doncaster, DN6 8DP
- Nature of business
- Construction of domestic buildings; Plastering; Joinery installation
Sdy Building Contractors Ltd is a 4-year-old private limited company registered in Doncaster, company number 13933810, one of 306 building contractors in Doncaster. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 £61K on the year before, to £62K.
- Current assets of £197K against £152K owed within a year: 1.3 times cover.
- 4 employees on average, up from 2 the year before.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £62K | £197K | £152K | 4 | |
| 28 Feb 2024 | £920 | £12K | £23K | 2 | |
| 28 Feb 2023 | £5,125 | £24K | £19K | 2 |
Where Sdy Building Contractors Ltd is registered
The registered office is in Doncaster (DN6), in the Doncaster local authority area, Yorkshire and The Humber. Show DN6 8DP on a map.
Other trade companies in DN6
- Road Services LtdBuilders
- Road Repairs LtdCivil engineering
- Booth & Son Building & Landscapes LtdFinishing trades
- BP Solar LtdElectricians
- Galestra LtdMechanics and garages
- Paneperfect LtdCleaning companies
- A.B Building Preservation LtdCleaning companies
- 795 Construction LtdBuilders
Also registered at this address
12 other companies use the same registered office as Sdy Building Contractors Ltd.
- D G Howard LtdBuilders
- D Kelbie Truck & Machinery Sales LtdMotor traders
- H&Y Projects LtdRoofers
- Hanson & Pickering LtdLandscapers and gardeners
- Hanson Landscaping & Gardening LtdLandscapers and gardeners
- Ojh Enterprises LtdSpecialist contractors
- Orus Electrification Services LtdCivil engineering
- Reva.C LimitedBuilders
- Riverson Developments LimitedProperty developers
- RN Heat & Power LimitedElectricians
- Thompsons Property & Leisure LtdProperty developers
- Thompsons Property and Sales LtdProperty developers
What happens if Sdy Building Contractors 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 13933810
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 February 2022 (4 years ago)
- Registered office
- 12 High Street, Carcroft, Doncaster, DN6 8DP
- Nature of business
- Construction of domestic buildings (SIC 41202)
Plastering (SIC 43310)
Joinery installation (SIC 43320) - Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 21 February 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 Doncaster
Other active building contractors registered in Doncaster.
- Sinamati Facades Ltd2023
- Sirius Solar Installations Ltd2025
- Sky Roofing Systems Ltd2026
- Slater Building Solutions Limited2014
- Smith & Sons Property Ltd2025
- Southview Developments Ltd2013
- Spandrel Homes Ltd2012
- Springside Property Developments Limited2008
All building contractors in Doncaster · All trades in Doncaster · Builders across the UK
Frequently asked questions
When are Sdy Building Contractors Ltd's accounts due?
Sdy Building Contractors Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Sdy Building Contractors Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Sdy Building Contractors Ltd still trading?
Sdy Building Contractors 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 Sdy Building Contractors Ltd do?
Sdy Building Contractors Ltd is registered under Construction of domestic buildings (SIC 41202); Plastering (SIC 43310); Joinery installation (SIC 43320).
How old is Sdy Building Contractors Ltd?
Sdy Building Contractors Ltd was incorporated on 22 February 2022, 4 years ago.
What is the penalty if Sdy Building Contractors 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 Sdy Building Contractors 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.