- Company number
- 11335815
- Incorporated
- 30 Apr 20188 years trading
- Registered office
- 8 the Avenue, Coulsdon, CR5 2BN
- Nature of business
- Construction of domestic buildings; Other building completion and finishing
SGP Building Ltd is a 8-year-old private limited company registered in Coulsdon, company number 11335815, one of 45 building contractors in Coulsdon. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 down £5,862 (-67.7%) on the year before, to £2,792.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £17K against £9,960 owed within a year: 1.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £2,792 | £17K | £9,960 | 1 | |
| 30 Apr 2024 | £8,654 | £29K | £16K | 1 | |
| 30 Apr 2023 | £1,101 | £26K | £17K | 1 | |
| 30 Apr 2022 | £3,358 | £39K | £25K | 1 | |
| 30 Apr 2021 | £184 | £29K | £14K | 1 | |
| 30 Apr 2020 | £296 | £14K | £17K | 1 | |
| 30 Apr 2019 | £5,131 | £15K | £15K |
Where SGP Building Ltd is registered
The registered office is in Coulsdon (CR5), in the Croydon local authority area, London. Show CR5 2BN on a map.
Other trade companies in CR5
- Rowson Electrical LtdElectricians
- Hodges Building and Landscaping LtdBuilders
- Alliance Air Conditioning LtdPlumbers and heating engineers
- HTP Construction LtdBuilders
- Apex International Construction LimitedBuilders
- Luxe Services LtdFinishing trades
- Premier Climate LtdPlumbers and heating engineers
- Jigsaw Builds LtdBuilders
What happens if SGP Building 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 11335815
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 April 2018 (8 years ago)
- Registered office
- 8 the Avenue, Coulsdon, CR5 2BN
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 2 October 2025
- Previous names
- Ajs Building Limited (until 7 Aug 2018)
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 Coulsdon
Other active building contractors registered in Coulsdon.
- ST Monicas Building Contractors Ltd2022
- Surrey Build Civils Limited2024
- Surrey Loft Conversions Limited2024
- Sussex Lofts Limited2024
- Taylor'd Loft Conversions Ltd2014
- The.London.Contractor Ltd2024
- TKL Services Ltd2025
- Aa Ontime Ltd2020
All building contractors in Coulsdon · All trades in Coulsdon · Builders across the UK
Frequently asked questions
When are SGP Building Ltd's accounts due?
SGP Building Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is SGP Building Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is SGP Building Ltd still trading?
SGP Building 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 SGP Building Ltd do?
SGP Building Ltd is registered under Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is SGP Building Ltd?
SGP Building Ltd was incorporated on 30 April 2018, 8 years ago.
What is the penalty if SGP Building 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 SGP Building 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.