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- Simm Developments Ltd
Company profile · Property developers
Simm Developments Ltd
Simm Developments Ltd is a 8-year-old private limited company registered in London, company number 11465036, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 July 2025, as filed at Companies House.
Simm Developments Ltd over the years
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £1.1M (-40.3%) on the year before, to £1.6M.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £793K against £262K owed within a year: 3.0 times cover.
- 2 employees on average, down from 4 the year before.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £1.6M | £17K | £793K | £262K | 2 |
| 31 Jul 2024 | £2.6M | £238K | £626K | £940K | 4 |
| 31 Jul 2023 | £1.3M | £26K | £301K | £891K | 3 |
| 31 Jul 2022 | £272K | £126K | £75K | 3 | |
| 31 Jul 2021 | £21K | £9,000 | £13K | 1 | |
| 31 Jul 2020 | £25K | £7,500 | £9,540 | 1 | |
| 31 Jul 2019 | £13K | £3,200 | £1,275 |
Where Simm Developments Ltd is registered
The registered office is in London (EC2A), in the Hackney local authority area, London. Show EC2A 4NA on a map.
Other trade companies in EC2A
- Simlan Management LtdCleaning companies
- Renova Secure LtdBuilders
- Auraglasspartitions LtdGlaziers
- A2D Professional Cleaning LtdCleaning companies
- Matson Co. LtdProperty developers
- Paint Hub LimitedMechanics and garages
- SJK Construction & Management LtdBuilders
- Cenlora Cleaning Group LtdCleaning companies
Shared registered office
1,510 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 Simm Developments 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 11465036
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 July 2018 (8 years ago)
- Registered office
- 66 Paul Street, London, EC2A 4NA
- Nature of business
- Development of building projects (SIC 41100)
Other building completion and finishing (SIC 43390)
Combined facilities support activities (SIC 81100) - Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 30 June 2026
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.
- Simmy Contracts Ltd.2016
- Simon Dodds Developments Limited2006
- Simon’S Bros Ltd2023
- Simpa Property Partners Limited2024
- Simple Move Property Ltd2026
- Simple Shape Space Limited2020
- Simply Crafted Architectural Gems Ltd2026
- Simply Crafted Investments Margate Ltd2023
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Simm Developments Ltd's accounts due?
Simm Developments Ltd's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is Simm Developments Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Simm Developments Ltd still trading?
Simm Developments 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 Simm Developments Ltd do?
Simm Developments Ltd is registered under Development of building projects (SIC 41100); Other building completion and finishing (SIC 43390); Combined facilities support activities (SIC 81100).
How old is Simm Developments Ltd?
Simm Developments Ltd was incorporated on 16 July 2018, 8 years ago.
What is the penalty if Simm Developments 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 Simm Developments 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.