- Companies
- Finishing trades
- Mountain Ash
- N&B Construction Ltd
N&B Construction Ltd
- Company number
- 14565378
- Incorporated
- 2 Jan 20233 years trading
- Registered office
- 40 Jenkin Street, Abercynon, Mountain Ash, CF45 4UL
- Nature of business
- Other building completion and finishing
N&B Construction Ltd is a 3-year-old private limited company registered in Mountain Ash, company number 14565378, one of 5 building finishing companies in Mountain Ash. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 up £37K (+214%) on the year before, to £55K.
- Current assets of £65K against £26K owed within a year: 2.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £55K | £65K | £26K | 0 | |
| 31 Jan 2024 | £17K | £22K | £4,089 | 1 |
Who runs and owns N&B Construction Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| G*** B*** | Director | Jan 2023 |
Person with significant control
Public contracts won
N&B Construction Ltd has 2 public sector contract awards on record (2026). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Barcud Shared Services2 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Barcud Shared Services | BSS25004 - Grounds Maintenance Framework | Ceiling, not shown | 13 Apr 2026 |
| Barcud Shared Services | BSS24005 -Works of Adaptations | Ceiling, not shown | 2 Feb 2026 |
Where N&B Construction Ltd is registered
The registered office is in Mountain Ash (CF45), in the Rhondda Cynon Taf local authority area, Wales. Show CF45 4UL on a map.
Other trade companies in CF45
- Pro Guard Home Improvements LtdRoofers
- Smiths Rendering & Resin LtdBuilders
- Ironrootslandscaping LimitedLandscapers and gardeners
- Lee Griffiths Contractors LimitedFinishing trades
- Theglossboss LtdCleaning companies
- Brickzen Constructions LtdInstallers
- STR Drylining LtdBuilders
- Greenvoltinfrastructure LtdCivil engineering
What happens if N&B 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 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 14565378
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 January 2023 (3 years ago)
- Registered office
- 40 Jenkin Street, Abercynon, Mountain Ash, CF45 4UL
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 1 January 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Mountain Ash
Other active building finishing companies registered in Mountain Ash.
- Abh Rendering Ltd2025
- Delta Washrooms Ltd2019
- Lee Griffiths Contractors Limited2026
- Mountain Ash Render Systems Ltd2014
All building finishing companies in Mountain Ash · All trades in Mountain Ash · Finishing trades across the UK
Frequently asked questions
When are N&B Construction Ltd's accounts due?
N&B Construction Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is N&B Construction Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is N&B Construction Ltd still trading?
N&B Construction 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 N&B Construction Ltd do?
N&B Construction Ltd is registered under Other building completion and finishing (SIC 43390).
How old is N&B Construction Ltd?
N&B Construction Ltd was incorporated on 2 January 2023, 3 years ago.
Who runs N&B Construction Ltd?
N&B Construction Ltd has 1 active director, the longest-serving appointed in Jan 2023. Their names and service addresses are on the Companies House register.
Who owns N&B Construction Ltd?
One person or company has significant control of N&B Construction Ltd: an individual (owns 75% or more of the shares).
Has N&B Construction Ltd won public sector contracts?
Yes. N&B Construction Ltd has 2 contract awards from public bodies on Contracts Finder and Find a Tender, most recently from Barcud Shared Services.
What is the penalty if N&B 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 N&B Construction 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.