- Companies
- Property developers
- London
- Ja Construction Group Ltd
Ja Construction Group Ltd
- Company number
- 17047713
- Incorporated
- 23 Feb 2026
- Registered office
- Monomark House, 27 Old Gloucester Street, London, WC1N 3AX
- Nature of business
- Development of building projects; Construction of commercial buildings; Construction of domestic buildings
Ja Construction Group Ltd is a newly incorporated private limited company registered in London, company number 17047713, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 23 November 2027, and its first CT600 is due at HMRC on 22 February 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.
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 Ja Construction Group 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 Ja Construction Group Ltd is registered
The registered office is in London (WC1N), in the Camden local authority area, London. Show WC1N 3AX on a map.
Other trade companies in WC1N
- JDB Consult LtdProperty developers
- Pixie Marine LimitedMachinery repair and installation
- Old Man Edition LtdFloor and wall tilers
- Wise Choice Security LimitedMechanics and garages
- Prime Coating Services LtdMotor traders
- Strive Lands LtdProperty developers
- Statom LimitedBuilders
- Jose Galvez LtdRepair services
Also registered at this address
14 other companies use the same registered office as Ja Construction Group Ltd.
- 2MG Invest LtdProperty developers
- 360 Degree Cleaning Services LimitedCleaning companies
- A and R Response Damp Consultancy LtdSpecialist contractors
- A1 Crystal Cleaning LtdCleaning companies
- Armar Builders LtdJoiners and carpenters
- Arvelo Group LtdMotor traders
- Atkinson Compliance LtdPlumbers and heating engineers
- Cali Environment & Support Services LtdCleaning companies
- Key4U LtdCleaning companies
- M-2 Construction London LimitedBuilders
- Ntrio LtdProperty developers
- Q - Build Maintenance (UK) LimitedFacilities management
- Shinecraft Cleaning Services Ltd. LtdCleaning companies
- Thetio Ltd.Cleaning companies
What happens if Ja Construction Group 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 23 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 24 Nov 2027 to 23 Dec 2027 | £150 |
| 1 to 3 months late | 24 Dec 2027 to 23 Feb 2028 | £375 |
| 3 to 6 months late | 24 Feb 2028 to 23 May 2028 | £750 |
| More than 6 months late | From 24 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 17047713
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 February 2026
- Registered office
- Monomark House, 27 Old Gloucester Street, London, WC1N 3AX
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in London
Other active property development companies registered in London.
- Jaan Construction Limited2020
- Jaap Building Services Limited2015
- Jabali Homes Ltd2026
- Jabotinsky Ltd2021
- Jacaranda Property Investment Limited2017
- Jacey Property Company Limited1991
- Jack & Co. Holdings Ltd2022
- Jackdaw Project Management Ltd2026
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Ja Construction Group Ltd's accounts due?
Ja Construction Group Ltd's next accounts are due at Companies House by 23 November 2027 (in 407 days), covering the period to 28 February 2027.
When is Ja Construction Group 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 22 February 2027, due by 22 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ja Construction Group Ltd still trading?
Ja Construction Group 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 Ja Construction Group Ltd do?
Ja Construction Group Ltd is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Ja Construction Group Ltd?
Ja Construction Group Ltd was incorporated on 23 February 2026, less than a year ago.
What is the penalty if Ja Construction Group 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 Ja Construction Group 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.