- Companies
- Specialist contractors
- Northampton
- Building Up Ltd
Building Up Ltd
- Company number
- 16659462
- Incorporated
- 19 Aug 20251 year trading
- Registered office
- Flat 4, Mercers Row, Northampton, NN1 2QL
- Nature of business
- Other specialised construction activities n.e.c.
Building Up Ltd is a 1-year-old private limited company registered in Northampton, company number 16659462, one of 258 specialist construction companies in Northampton. Its next accounts are due at Companies House on 19 May 2027, and its first CT600 is due at HMRC on 18 August 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Building Up Ltd is registered
The registered office is in Northampton (NN1), in the West Northamptonshire local authority area, East Midlands. Show NN1 2QL on a map.
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What happens if Building Up 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 19 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 20 May 2027 to 19 Jun 2027 | £150 |
| 1 to 3 months late | 20 Jun 2027 to 19 Aug 2027 | £375 |
| 3 to 6 months late | 20 Aug 2027 to 19 Nov 2027 | £750 |
| More than 6 months late | From 20 Nov 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
- 16659462
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 August 2025 (1 year ago)
- Registered office
- Flat 4, Mercers Row, Northampton, NN1 2QL
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 18 August 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 Northampton
Other active specialist construction companies registered in Northampton.
- BVN Brickwork Ltd2018
- C&C Cars Limited2025
- Camelot U.P.V.C. Fascias & Guttering Limited1998
- Camelservices Ltd2026
- Chapclad Ltd2008
- Charles Mechanical Services Ltd2025
- Chimney Services Limited2016
- Cil Bros Construction Limited2026
All specialist construction companies in Northampton · All trades in Northampton · Specialist contractors across the UK
Frequently asked questions
When are Building Up Ltd's accounts due?
Building Up Ltd's next accounts are due at Companies House by 19 May 2027 (in 218 days), covering the period to 31 August 2026.
When is Building Up Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 18 August 2026, due by 18 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Building Up Ltd still trading?
Building Up 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 Building Up Ltd do?
Building Up Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Building Up Ltd?
Building Up Ltd was incorporated on 19 August 2025, 1 year ago.
What is the penalty if Building Up 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 Building Up 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.