- Company number
- 16146353
- Incorporated
- 20 Dec 20241 year trading
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
RSM Construction Services Ltd is a 1-year-old private limited company registered in London, company number 16146353, one of 12,075 building contractors in London. Companies House shows its accounts as overdue: they were due on 20 September 2026.
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 RSM Construction Services Ltd is registered
The registered office is in London (N1), in the Hackney local authority area, London. Show N1 7GU on a map.
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- Get IT Done Builders LtdJoiners and carpenters
- Evolution Products LimitedMotor traders
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- Kenneth Brady LtdElectricians
- UK Import Export LtdBuilders
- Magic Door Services LimitedMachinery repair and installation
Shared registered office
1,583 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 RSM Construction Services Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Sep 2026 to 20 Oct 2026 | £150 |
| 1 to 3 months late | 21 Oct 2026 to 20 Dec 2026 | £375 |
| 3 to 6 months late | 21 Dec 2026 to 20 Mar 2027 | £750 |
| More than 6 months late | From 21 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 16146353
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 December 2024 (1 year ago)
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 December (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 19 December 2025
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 London
Other active building contractors registered in London.
- RSP Spire Ltd2023
- RT Builders Limited2025
- RT Refurbs Limited2024
- Rubani & Co Limited2024
- Rubi Construction Limited2026
- Rudgard Holdings Limited2015
- Rudi Pegescu Construct Ltd2021
- Rudico Construction Ltd2024
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are RSM Construction Services Ltd's accounts due?
RSM Construction Services Ltd's accounts were due at Companies House on 20 September 2026 and the register shows them as overdue.
When is RSM Construction Services 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 19 December 2025, due by 19 December 2026, and one for the period to 31 December 2025, due by 31 December 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is RSM Construction Services Ltd still trading?
RSM Construction Services Ltd is listed as active on the Companies House register (checked 12 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 RSM Construction Services Ltd do?
RSM Construction Services Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is RSM Construction Services Ltd?
RSM Construction Services Ltd was incorporated on 20 December 2024, 1 year ago.
What is the penalty if RSM Construction Services 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 RSM Construction Services Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.