- Companies
- Installers
- London
- Fast Building Ii Ltd
Fast Building Ii Ltd
- Company number
- 10534389
- Incorporated
- 21 Dec 20169 years trading
- Registered office
- 167-169 Great Portland Street, Fifth Floor, London, W1W 5PF
- Nature of business
- Other construction installation; Other building completion and finishing; Other specialised construction activities n.e.c.; Other business support service activities n.e.c.
Fast Building Ii Ltd is a 9-year-old private limited company registered in London, company number 10534389, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Fast Building Ii LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £409K on the year before, to £416K.
- Net assets rose in 5 of 8 year-on-year comparisons on record.
- Current assets of £731K against £316K 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, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £416K | £731K | £316K | 0 | |
| 31 Dec 2024 | £6,583 | £286K | £280K | 3 | |
| 31 Dec 2023 | £2,575 | £168K | £165K | 3 | |
| 31 Dec 2022 | £71 | £71 | 3 | ||
| 31 Dec 2021 | £612 | £612 | 3 | ||
| 31 Dec 2020 | -£4,797 | 3 | |||
| 31 Dec 2019 | £1,599 | £1,830 | £231 | 4 | |
| 31 Dec 2018 | £2,433 | £12K | £5,468 | ||
| 31 Dec 2017 | £100 | £0 |
Where Fast Building Ii Ltd is registered
The registered office is in London (W1W), in the Westminster local authority area, London. Show W1W 5PF on a map.
Other trade companies in W1W
- Civaris LtdSpecialist contractors
- R&R Construction Group LtdBuilders
- Aurum Cooling LtdPlumbers and heating engineers
- Steam Wood Stone LtdFinishing trades
- Hau Developments LimitedProperty developers
- Group Atlas Financial 83 LtdPainters and decorators
- Energy Reward LtdMotor traders
- Holly’S Housekeeping LtdCleaning companies
Shared registered office
1,494 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 Fast Building Ii 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 10534389
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 December 2016 (9 years ago)
- Registered office
- 167-169 Great Portland Street, Fifth Floor, London, W1W 5PF
- Nature of business
- Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390)
Other specialised construction activities n.e.c. (SIC 43999)
Other business support service activities n.e.c. (SIC 82990) - Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 30 January 2026
- Previous names
- Phu Marika Bonkowska# Ltd (until 30 Jan 2018)
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Fast Group Jointers Ltd2018
- Fast Installations Ltd2021
- FD Innovations Limited2025
- Featherstone Commercial Interiors Ltd2018
- Feby Dollars Ltd2023
- Feeney Construction Ltd2015
- Fenceways Group Ltd2025
- Fenster Tek UK Limited2025
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Fast Building Ii Ltd's accounts due?
Fast Building Ii Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Fast Building Ii Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Fast Building Ii Ltd still trading?
Fast Building Ii 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 Fast Building Ii Ltd do?
Fast Building Ii Ltd is registered under Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390); Other specialised construction activities n.e.c. (SIC 43999); Other business support service activities n.e.c. (SIC 82990).
How old is Fast Building Ii Ltd?
Fast Building Ii Ltd was incorporated on 21 December 2016, 9 years ago.
What is the penalty if Fast Building Ii 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 Fast Building Ii 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.