- Company number
- 09471427
- Incorporated
- 4 Mar 201511 years trading
- Registered office
- 40 ST. Luke's Avenue, London, Greater London, SW4 7LQ
- Nature of business
- Construction of domestic buildings
Form + Build London Limited is a 11-year-old private limited company registered in London, company number 09471427, one of 12,075 building contractors in London. Companies House shows its accounts as overdue: they were due on 30 September 2026.
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 £428 (+2.5%) on the year before, to £17K.
- Net assets rose in 5 of 8 year-on-year comparisons on record.
- Current assets of £43K against £19K owed within a year: 2.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 9 years, 2016 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2024 | £17K | £43K | £19K | 0 | |
| 29 Sep 2023 | £17K | £58K | £41K | 1 | |
| 29 Sep 2022 | £23K | £58K | £35K | 1 | |
| 29 Sep 2021 | £12K | £67K | £55K | 1 | |
| 29 Sep 2020 | -£3,038 | £66K | £69K | 1 | |
| 29 Sep 2019 | £98K | £127K | £29K | 1 | |
| 29 Sep 2018 | -£3,589 | £34K | £34K | 1 | |
| 30 Sep 2017 | £21K | £52K | £30K | 1 | |
| 31 Mar 2016 | £7,596 | £10K |
Where Form + Build London Limited is registered
The registered office is in London (SW4), in the Lambeth local authority area, London. Show SW4 7LQ on a map.
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What happens if Form + Build London Limited files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 09471427
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 March 2015 (11 years ago)
- Registered office
- 40 ST. Luke's Avenue, London, Greater London, SW4 7LQ
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2024
- Last confirmation statement
- 17 October 2025
- Previous names
- Formative London Limited (until 14 Oct 2024)
Thurst Developments Limited (until 9 Nov 2017)
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 London
Other active building contractors registered in London.
- Form Carpentry Limited2016
- Form Construction and Design Ltd2021
- Form Group Contractor Ltd2024
- Form Line Contracts Ltd2026
- Form Renovations Ltd2026
- Form UK Contractor Ltd2018
- Format Refurbishment Ltd2018
- Formwork Mirey Ltd2017
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Form + Build London Limited's accounts due?
Form + Build London Limited's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Form + Build London Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 September 2025, due by 30 September 2026, and one for the period to 31 December 2025, due by 31 December 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Form + Build London Limited still trading?
Form + Build London Limited 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 Form + Build London Limited do?
Form + Build London Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Form + Build London Limited?
Form + Build London Limited was incorporated on 4 March 2015, 11 years ago.
What is the penalty if Form + Build London 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 Form + Build London Limited 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.