- Companies
- Specialist contractors
- Bishop's Stortford
- Ampersand Keystone Ltd
Ampersand Keystone Ltd
- Company number
- 16385846
- Incorporated
- 14 Apr 20251 year trading
- Registered office
- 3 the Stables, Cannons Mill Lane, Bishop's Stortford, CM23 2BN
- Nature of business
- Other specialised construction activities n.e.c.; Information technology consultancy activities
Ampersand Keystone Ltd is a 1-year-old private limited company registered in Bishop's Stortford, company number 16385846, one of 50 specialist construction companies in Bishop's Stortford. Its next accounts are due at Companies House on 14 January 2027, and its first CT600 is due at HMRC on 13 April 2027.
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 Ampersand Keystone Ltd is registered
The registered office is in Bishop's Stortford (CM23), in the East Hertfordshire local authority area, East of England. Show CM23 2BN on a map.
Other trade companies in CM23
- Virtual Bee Property Development LtdProperty developers
- Cerberus (Compliance & Maintain) LimitedInstallers
- Cerberus (Electrical & Renewables) LimitedInstallers
- Bishop's Stortford Tyres Hub LimitedMechanics and garages
- Da Power LtdElectricians
- Henry Daniel Building Co LtdBuilders
- Wolfe Services LimitedMachinery repair and installation
- Bells Exterior Services LimitedCleaning companies
What happens if Ampersand Keystone 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 14 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 Jan 2027 to 14 Feb 2027 | £150 |
| 1 to 3 months late | 15 Feb 2027 to 14 Apr 2027 | £375 |
| 3 to 6 months late | 15 Apr 2027 to 14 Jul 2027 | £750 |
| More than 6 months late | From 15 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 16385846
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 April 2025 (1 year ago)
- Registered office
- 3 the Stables, Cannons Mill Lane, Bishop's Stortford, CM23 2BN
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Information technology consultancy activities (SIC 62020) - Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 13 April 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Bishop's Stortford
Other active specialist construction companies registered in Bishop's Stortford.
- Artmar Construction Ltd2020
- Brownstone Building Services Ltd2015
- Brownstone Design & Build Ltd2026
- Churchgate Interiors Limited2020
- Clark Carpentry Solutions Limited2022
- Dwhite Mechanical Ltd2018
- Dynamic Ceilings & Partitions Ltd2022
- Envirotech Property Solutions Ltd2022
All specialist construction companies in Bishop's Stortford · All trades in Bishop's Stortford · Specialist contractors across the UK
Frequently asked questions
When are Ampersand Keystone Ltd's accounts due?
Ampersand Keystone Ltd's next accounts are due at Companies House by 14 January 2027 (in 93 days), covering the period to 30 April 2026.
When is Ampersand Keystone 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 13 April 2026, due by 13 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ampersand Keystone Ltd still trading?
Ampersand Keystone 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 Ampersand Keystone Ltd do?
Ampersand Keystone Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Information technology consultancy activities (SIC 62020).
How old is Ampersand Keystone Ltd?
Ampersand Keystone Ltd was incorporated on 14 April 2025, 1 year ago.
What is the penalty if Ampersand Keystone 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 Ampersand Keystone 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.