- Company number
- 04692769
- Incorporated
- 11 Mar 200323 years trading
- Registered office
- 5 Broom Hill, Welwyn, Hertfordshire, AL6 0SF
- Nature of business
- Construction of domestic buildings
Baseline Complete Construction Limited is a 23-year-old private limited company registered in Welwyn, company number 04692769, one of 15 building contractors in Welwyn. Its next accounts are due at Companies House on 26 June 2027, and the CT600 for the period to 26 September 2026 is due at HMRC on 26 September 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 £61K (-21.1%) on the year before, to -£351K.
- Net assets rose in 2 of 9 year-on-year comparisons on record.
- Current assets of £966K against £1.3M owed within a year: 0.7 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | -£351K | £1 | £966K | £1.3M | 2 |
| 30 Sep 2024 | -£290K | £1 | £1M | £1.3M | 2 |
| 30 Sep 2023 | -£240K | £1 | £1.1M | £1.3M | 2 |
| 30 Sep 2022 | -£177K | £17 | £1.1M | £1.3M | 2 |
| 30 Sep 2021 | -£100K | £1 | £801K | £932K | 2 |
| 30 Sep 2020 | -£135K | £1 | £588K | £761K | 2 |
| 30 Sep 2019 | -£79K | £1 | £345K | £429K | 2 |
| 30 Sep 2018 | -£29K | £1 | £57K | £93K | 2 |
| 30 Sep 2017 | £176 | £1 | £24K | £35K | 3 |
| 31 Mar 2016 | -£114K | £3 | £150K | £265K |
Where Baseline Complete Construction Limited is registered
The registered office is in Welwyn (AL6), in the Welwyn Hatfield local authority area, East of England. Show AL6 0SF on a map.
Other trade companies in AL6
- Herts Climate Solutions LtdPlumbers and heating engineers
- Cosmorepairs LtdRepair services
- Little Enterprise Group LtdProperty developers
- Sehiti Plumbing and Heating LtdPlumbers and heating engineers
- LMC Highway Design LtdCivil engineering
- Fox Huhu Trading LimitedBuilders
- Enclosure Zoolutions LtdProperty developers
- G.I. Installation Services LimitedBuilders
What happens if Baseline Complete Construction 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 26 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 27 Jun 2027 to 26 Jul 2027 | £150 |
| 1 to 3 months late | 27 Jul 2027 to 26 Sep 2027 | £375 |
| 3 to 6 months late | 27 Sep 2027 to 26 Dec 2027 | £750 |
| More than 6 months late | From 27 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 27 Sep 2027 | £200 |
| 3 months late | 26 Dec 2027 | another £200 |
| 6 months late | 26 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 26 Sep 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
- 04692769
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 March 2003 (23 years ago)
- Registered office
- 5 Broom Hill, Welwyn, Hertfordshire, AL6 0SF
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 26 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 9 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 Welwyn
Other active building contractors registered in Welwyn.
- Cain East Ltd2019
- D&B Building Limited2018
- DJ Cox Building Services Ltd2019
- Fox Huhu Trading Limited2026
- G.I. Installation Services Limited2026
- Herts County Builders Limited2012
- Home County Garden Rooms Limited2023
- Magicautos Ltd2024
All building contractors in Welwyn · All trades in Welwyn · Builders across the UK
Frequently asked questions
When are Baseline Complete Construction Limited's accounts due?
Baseline Complete Construction Limited's next accounts are due at Companies House by 26 June 2027 (in 257 days), covering the period to 26 September 2026.
When is Baseline Complete Construction Limited's CT600 due?
The CT600 for the period to 26 September 2026 is due at HMRC by 26 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 27 June 2027.
Is Baseline Complete Construction Limited still trading?
Baseline Complete Construction 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 Baseline Complete Construction Limited do?
Baseline Complete Construction Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Baseline Complete Construction Limited?
Baseline Complete Construction Limited was incorporated on 11 March 2003, 23 years ago.
What is the penalty if Baseline Complete Construction 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 Baseline Complete Construction 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.