- Companies
- Specialist contractors
- Northwood
- South West London Construction Ltd
South West London Construction Ltd
- Company number
- 09797758
- Incorporated
- 28 Sep 201511 years trading
- Registered office
- 27A Maxwell Road, Northwood, HA6 2XY
- Nature of business
- Other specialised construction activities n.e.c.
South West London Construction Ltd is a 11-year-old private limited company registered in Northwood, company number 09797758, one of 32 specialist construction companies in Northwood. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 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 £13K on the year before, to -£12K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £7,744 against £9,274 owed within a year: 0.8 times cover.
- 1 employee 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 | -£12K | £7,744 | £9,274 | 1 | |
| 30 Sep 2024 | £1,251 | £16K | £6,924 | 1 | |
| 30 Sep 2023 | £1,049 | £25K | £8,815 | 1 | |
| 30 Sep 2022 | £1,642 | £21K | £6,012 | 1 | |
| 30 Sep 2021 | £2,565 | £27K | £11K | 1 | |
| 31 Dec 2020 | £17K | £40K | £7,369 | 1 | |
| 31 Dec 2019 | £8,761 | £16K | £7,537 | 1 | |
| 31 Dec 2018 | £3,563 | £4,580 | £2,191 | ||
| 31 Dec 2017 | -£2,268 | £3,908 | £9,288 | ||
| 31 Dec 2016 | -£7,255 | £120 | £345 | £7,600 |
Where South West London Construction Ltd is registered
The registered office is in Northwood (HA6), in the Hillingdon local authority area, London. Show HA6 2XY on a map.
Other trade companies in HA6
- Alexastef LimitedBuilders
- Brill (Rural Property) LimitedProperty developers
- Roblar LimitedBuilders
- Compare My Cleaning Quotes LtdCleaning companies
- Cheshire Developments Group LtdProperty developers
- Elite London Cleaning LtdCleaning companies
- Melylar Render LtdBuilders
- Avidity Air Conditioning LtdPlumbers and heating engineers
Shared registered office
52 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if South West London Construction 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 09797758
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 September 2015 (11 years ago)
- Registered office
- 27A Maxwell Road, Northwood, HA6 2XY
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 27 September 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Northwood
Other active specialist construction companies registered in Northwood.
- Stephen and Cavalli Ltd2016
- Tomus Ltd2021
- Woodfloor Martins Limited2015
- Yahoo Solutions Ltd2024
- A J B Building & Maintenance Limited2026
- Alphafourzero Ltd2024
- Anc Scaffolding Products Ltd2014
- Beast Scaffold Supplies Ltd2025
All specialist construction companies in Northwood · All trades in Northwood · Specialist contractors across the UK
Frequently asked questions
When are South West London Construction Ltd's accounts due?
South West London Construction Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is South West London Construction Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is South West London Construction Ltd still trading?
South West London Construction Ltd is listed as active on the Companies House register (checked 13 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 South West London Construction Ltd do?
South West London Construction Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is South West London Construction Ltd?
South West London Construction Ltd was incorporated on 28 September 2015, 11 years ago.
What is the penalty if South West London Construction 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 South West London Construction Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.