KCB Building & Joinery Ltd
- Company number
- NI690327
- Incorporated
- 11 Aug 20224 years trading
- Registered office
- 43 Cumberland Drive, Dundonald, BT16 2AT
- Nature of business
- Construction of domestic buildings
KCB Building & Joinery Ltd is a 4-year-old private limited company registered in Dundonald, company number NI690327, one of the UK's building contractors. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 KCB Building & Joinery 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 £11K on the year before, to £12K.
- Current assets of £19K against £7,292 owed within a year: 2.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £12K | £19K | £7,292 | 0 | |
| 31 Aug 2024 | £549 | £739 | £200 | 0 | |
| 31 Aug 2023 | £652 | £1 | £663 | 1 |
Where KCB Building & Joinery Ltd is registered
The registered office is in Dundonald (BT16), in the Lisburn and Castlereagh local authority area, Northern Ireland. Show BT16 2AT on a map.
Other trade companies in BT16
- Drytech Restoration LtdFinishing trades
- Ali Motors Services LtdMotor traders
- Phil & Sons Joinery LtdRoofers
- J Hoy Aero LtdMachinery repair and installation
- CSW Electrical Installations LtdElectricians
- Gilnahirk Tuning LimitedMechanics and garages
- McKee Landscaping LtdLandscapers and gardeners
- Scaffmonkey Scaffolding Services LtdScaffolders
What happens if KCB Building & Joinery 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- NI690327
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 August 2022 (4 years ago)
- Registered office
- 43 Cumberland Drive, Dundonald, BT16 2AT
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 10 August 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
Other active building contractors.
Frequently asked questions
When are KCB Building & Joinery Ltd's accounts due?
KCB Building & Joinery Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is KCB Building & Joinery Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is KCB Building & Joinery Ltd still trading?
KCB Building & Joinery 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 KCB Building & Joinery Ltd do?
KCB Building & Joinery Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is KCB Building & Joinery Ltd?
KCB Building & Joinery Ltd was incorporated on 11 August 2022, 4 years ago.
What is the penalty if KCB Building & Joinery 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 KCB Building & Joinery 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.