- Companies
- Plumbers and heating engineers
- London
- JK Modern Projects Ltd
JK Modern Projects Ltd
- Company number
- 17104428
- Incorporated
- 19 Mar 2026
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Plumbing, heat and air-conditioning installation; Other building completion and finishing; Other retail sale not in stores, stalls or markets
JK Modern Projects Ltd is a newly incorporated private limited company registered in London, company number 17104428, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 19 December 2027, and its first CT600 is due at HMRC on 18 March 2028.
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 JK Modern Projects Ltd is registered
The registered office is in London (N1), in the Hackney local authority area, London. Show N1 7GU on a map.
Other trade companies in N1
- Tagwise LtdSpecialist contractors
- Sphere Aviation Solutions UK LtdMachinery repair and installation
- Get IT Done Builders LtdJoiners and carpenters
- Evolution Products LimitedMotor traders
- Fleetstone Trading LtdMotor traders
- 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 JK Modern Projects 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 20 Dec 2027 to 19 Jan 2028 | £150 |
| 1 to 3 months late | 20 Jan 2028 to 19 Mar 2028 | £375 |
| 3 to 6 months late | 20 Mar 2028 to 19 Jun 2028 | £750 |
| More than 6 months late | From 20 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 17104428
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 March 2026
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other building completion and finishing (SIC 43390)
Other retail sale not in stores, stalls or markets (SIC 47990) - Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in London
Other active plumbing and heating companies registered in London.
- JKC Ductwork Services Ltd2022
- JLF Plumbing & Heating Ltd2024
- JLS Plumbing Ltd2023
- JM Domestic Services Ltd2020
- JM Heating and Plumbing Services Ltd2025
- JMB Ventilations Limited2021
- JNW Plumbing and Heating Limited2019
- Joe the Plumber Limited2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are JK Modern Projects Ltd's accounts due?
JK Modern Projects Ltd's next accounts are due at Companies House by 19 December 2027 (in 433 days), covering the period to 31 March 2027.
When is JK Modern Projects 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 March 2027, due by 18 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is JK Modern Projects Ltd still trading?
JK Modern Projects 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 JK Modern Projects Ltd do?
JK Modern Projects Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other building completion and finishing (SIC 43390); Other retail sale not in stores, stalls or markets (SIC 47990).
How old is JK Modern Projects Ltd?
JK Modern Projects Ltd was incorporated on 19 March 2026, less than a year ago.
What is the penalty if JK Modern Projects 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 JK Modern Projects 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.