- Company number
- SC710741
- Incorporated
- 28 Sep 20215 years trading
- Registered office
- 6 ST. Colme Street, Edinburgh, EH3 6AD
- Nature of business
- Construction of commercial buildings
Carnethy Developments Limited is a 5-year-old private limited company registered in Edinburgh, company number SC710741, one of 231 building contractors in Edinburgh. Companies House shows its accounts as overdue: they were due on 30 September 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the 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 Carnethy Developments LimitedOr 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.
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 £4,674 (-10.1%) on the year before, to -£51K.
- Current assets of £90K against £5,877 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 3 years, 2022 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2024 | -£51K | £88K | £90K | £5,877 | 0 |
| 30 Sep 2023 | -£46K | £61K | £68K | £15K | 0 |
| 30 Sep 2022 | -£30K | £296K | £324K | £41K | 0 |
Where Carnethy Developments Limited is registered
The registered office is in Edinburgh (EH3), in the City of Edinburgh local authority area, Scotland. Show EH3 6AD on a map.
Other trade companies in EH3
- Scandinavian Contractors LtdFloor and wall tilers
- P1 Storage LtdLandscapers and gardeners
- Mansfield Development (Marchhall) LtdProperty developers
- 1ST Adas LtdMechanics and garages
- Oak & Stone Contracts LtdBuilders
- Glenmont Capital LtdProperty developers
- Gould Wilson Investments LimitedProperty developers
- S & I Thomson LimitedMechanics and garages
Also registered at this address
15 other companies use the same registered office as Carnethy Developments Limited.
- Advie Properties LtdProperty developers
- Brian McPhillips LimitedMachinery repair and installation
- Dealan Consultants LtdProperty developers
- Dentcentral LimitedMechanics and garages
- Elm Developers LimitedProperty developers
- Great Western Property Holdings LimitedProperty developers
- Ivy Leaf Properties LimitedProperty developers
- Mackay Bros LimitedMechanics and garages
- Matrix Advanced NDT Inspection Services LimitedProperty developers
- MB Nexus LimitedProperty developers
- P & M Electrical Services LtdInstallers
- Rice Properties LimitedProperty developers
- The Supercar Tech LimitedMechanics and garages
- Turret Developments Scotland Holdings LimitedCivil engineering
- Turret Developments Scotland LtdCivil engineering
What happens if Carnethy Developments Limited files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- SC710741
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 September 2021 (5 years ago)
- Registered office
- 6 ST. Colme Street, Edinburgh, EH3 6AD
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2024
- Last confirmation statement
- 28 November 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Edinburgh
Other active building contractors registered in Edinburgh.
- Carpathian Craft Ltd2026
- Carronvale Homes (West) Limited2002
- CF100 UK Ltd2026
- Christies Parks Limited2005
- Cladding SFS Ltd2016
- Co Group Scotland Limited2026
- Collins Building Limited2017
- Conradz Building Services Ltd2025
All building contractors in Edinburgh · All trades in Edinburgh · Builders across the UK
Frequently asked questions
When are Carnethy Developments Limited's accounts due?
Carnethy Developments Limited's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Carnethy Developments Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 September 2025, due by 30 September 2026, and one for the period to 31 December 2025, due by 31 December 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Carnethy Developments Limited still trading?
Carnethy Developments Limited is listed as active on the Companies House register (checked 12 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 Carnethy Developments Limited do?
Carnethy Developments Limited is registered under Construction of commercial buildings (SIC 41201).
How old is Carnethy Developments Limited?
Carnethy Developments Limited was incorporated on 28 September 2021, 5 years ago.
What is the penalty if Carnethy Developments Limited 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 Carnethy Developments Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.