- Companies
- Property developers
- Lymington
- Key Build Developments Ltd
Key Build Developments Ltd
- Company number
- 12412343
- Incorporated
- 20 Jan 20206 years trading
- Registered office
- Danels Firs Main Road, Portmore, Lymington, SO41 5RF
- Nature of business
- Development of building projects; Buying and selling of own real estate; Other letting and operating of own or leased real estate
Key Build Developments Ltd is a 6-year-old private limited company registered in Lymington, company number 12412343, one of 56 property development companies in Lymington. Its next accounts are due at Companies House on 28 October 2026, and the CT600 for the period to 28 January 2026 is due at HMRC on 28 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
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 £1,524 (-5.1%) on the year before, to -£32K.
- Net assets rose in 0 of 4 year-on-year comparisons on record.
- Current assets of £33K against £14K owed within a year: 2.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Jan 2025 | -£32K | £33K | £14K | 0 | |
| 29 Jan 2024 | -£30K | £33K | £13K | 0 | |
| 29 Jan 2023 | -£23K | £36K | £11K | 0 | |
| 31 Jan 2022 | -£580 | £58K | £10K | 0 | |
| 31 Jan 2021 | -£140 | £50K | £50K | £240 | 0 |
Where Key Build Developments Ltd is registered
The registered office is in Lymington (SO41), in the New Forest local authority area, South East. Show SO41 5RF on a map.
Other trade companies in SO41
- Romero Construction LtdBuilders
- Sea Glass Zero LimitedLandscapers and gardeners
- Vincent's Auto Repairs LtdMechanics and garages
- Buckland Homes LtdProperty developers
- Deep Blue Navigation LtdElectricians
- Tyre Brothers LtdMechanics and garages
- Bull Cleaning Solutions LtdCleaning companies
- Harbour & House LtdProperty developers
Also registered at this address
1 other company uses the same registered office as Key Build Developments Ltd.
- Sutton Building & Design LimitedProperty developers
What happens if Key Build 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 28 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Oct 2026 to 28 Nov 2026 | £150 |
| 1 to 3 months late | 29 Nov 2026 to 28 Jan 2027 | £375 |
| 3 to 6 months late | 29 Jan 2027 to 28 Apr 2027 | £750 |
| More than 6 months late | From 29 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Jan 2027 | £200 |
| 3 months late | 28 Apr 2027 | another £200 |
| 6 months late | 28 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Jan 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
- 12412343
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 January 2020 (6 years ago)
- Registered office
- Danels Firs Main Road, Portmore, Lymington, SO41 5RF
- Nature of business
- Development of building projects (SIC 41100)
Buying and selling of own real estate (SIC 68100)
Other letting and operating of own or leased real estate (SIC 68209) - Year end
- 28 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 January 2025
- Last confirmation statement
- 19 January 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 Lymington
Other active property development companies registered in Lymington.
- Kite Properties Limited1996
- Langstrath Consultancy Ltd2022
- Limeview Developments Limited1996
- Little Everest Investments Limited2023
- Lymington Baptist Developments Ltd2025
- Lymore Ltd2023
- Lyrical Investments Limited2021
- Maxuna Ltd2026
All property development companies in Lymington · All trades in Lymington · Property developers across the UK
Frequently asked questions
When are Key Build Developments Ltd's accounts due?
Key Build Developments Ltd's next accounts are due at Companies House by 28 October 2026 (in 16 days), covering the period to 28 January 2026.
When is Key Build Developments Ltd's CT600 due?
The CT600 for the period to 28 January 2026 is due at HMRC by 28 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 29 October 2026.
Is Key Build Developments Ltd still trading?
Key Build 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 Key Build Developments Ltd do?
Key Build Developments Ltd is registered under Development of building projects (SIC 41100); Buying and selling of own real estate (SIC 68100); Other letting and operating of own or leased real estate (SIC 68209).
How old is Key Build Developments Ltd?
Key Build Developments Ltd was incorporated on 20 January 2020, 6 years ago.
What is the penalty if Key Build 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 Key Build 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.