- Company number
- 16933251
- Incorporated
- 29 Dec 2025
- Registered office
- 34 Lansbury Crescent, Dartford, DA1 5DG
- Nature of business
- Construction of domestic buildings
Smartcore Construction Ltd is a newly incorporated private limited company registered in Dartford, company number 16933251, one of 256 building contractors in Dartford. Its next accounts are due at Companies House on 29 September 2027, and its first CT600 is due at HMRC on 28 December 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.
Is this your company?
File the first 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 Smartcore Construction 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.
Where Smartcore Construction Ltd is registered
The registered office is in Dartford (DA1), in the Dartford local authority area, South East. Show DA1 5DG on a map.
Other trade companies in DA1
- Unit 6 Bespoke LtdSpecialist contractors
- Smartlifting LtdBuilders
- Degrees Bespoke Finishes LtdPlasterers
- A & A Electrical and Refrigeration LtdBuilders
- Elm Servicing LtdMachinery repair and installation
- WND Refrigeration LimitedPlumbers and heating engineers
- Moore Flooring and Sons LtdFloor and wall tilers
- Kinergy Systems LtdElectricians
What happens if Smartcore 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 29 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Sep 2027 to 29 Oct 2027 | £150 |
| 1 to 3 months late | 30 Oct 2027 to 29 Dec 2027 | £375 |
| 3 to 6 months late | 30 Dec 2027 to 29 Mar 2028 | £750 |
| More than 6 months late | From 30 Mar 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
- 16933251
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 December 2025
- Registered office
- 34 Lansbury Crescent, Dartford, DA1 5DG
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 December (accounting reference date)
- Accounts type
- No accounts filed yet
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 Dartford
Other active building contractors registered in Dartford.
- Smartlifting Ltd2026
- SN Crest Ltd2022
- SPMK Developments Ltd2023
- Stead & Son Interiors Ltd2023
- Steven Wilkinson Limited2006
- Stoke Road Cce Developments (Hoo) Ltd2025
- T.S. Drylining Ltd2018
- Tearman Limited2016
All building contractors in Dartford · All trades in Dartford · Builders across the UK
Frequently asked questions
When are Smartcore Construction Ltd's accounts due?
Smartcore Construction Ltd's next accounts are due at Companies House by 29 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Smartcore Construction 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 28 December 2026, due by 28 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Smartcore Construction Ltd still trading?
Smartcore 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 Smartcore Construction Ltd do?
Smartcore Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Smartcore Construction Ltd?
Smartcore Construction Ltd was incorporated on 29 December 2025, less than a year ago.
What is the penalty if Smartcore 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 Smartcore 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.