What is a porch?

A porch is a small extension built around the front door, giving a lobby for coats and shoes and stopping draughts reaching the hall. Most are brick with a pitched tiled roof to match the house, though glazed and timber porches are also common.
How much does a porch cost in Dumbarton?
In Dumbarton, a porch typically costs £6,250–£15,500 from a 3 m² porch to a small front extension, including VAT at 20% (standard rate). Building costs in Scotland are close to the UK average, so the figures for Dumbarton are close to our national guide. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| From a 3 m² porch to a small front extension | £6,250–£15,500 |
| Higher specification | £15,500–£19,500 |
The biggest cost drivers are:
- Size and roof style
- Brick matching
- Moving meters, drains or the doorbell and lighting
- Whether building regulations apply
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for a porch in Dumbarton?
Before anything is built in Dumbarton, we confirm which approvals apply in Scotland. In Scotland a porch is permitted development if its footprint is no more than 3 square metres, it is no more than 3 metres high and more than 2 metres from a boundary with a road, outside conservation areas. A building warrant may be needed depending on the design.
Scotland has no Party Wall Act. Work on shared walls is governed by your title deeds, the Tenements (Scotland) Act 2004 for flats, and common law, so we agree arrangements with neighbours in writing before work starts.
We check this for your address before design work starts, so there are no surprises later.
What we handle
Handled as part of most porches:
- Roof and guttering
- Foundations and brickwork
- Design to match the house
- Electrics for lighting
- Plastering and decoration
- Front door and windows
How long does it take?
The build itself usually takes 2 to 4 weeks on site. Design and approvals come first and typically take 6 to 12 weeks, depending on the approval route.
Building in Dumbarton
In Scotland, bungalows and one-and-a-half-storey homes are common, so dormer conversions are a popular way to add bedrooms.
From G82 outwards, we take on projects throughout Dumbarton and the surrounding parts of Dunbartonshire.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about porches in Dumbarton
Will it match my house?
We source matching bricks and tiles where possible, or suggest a deliberate contrast.
Who approves a porch in Dumbarton?
Planning matters in Dumbarton go to the council covering your address, and the work needs a building warrant. We prepare and submit the applications for you.
Can I have a toilet in my porch?
A downstairs toilet usually needs a larger front extension, a drainage connection and building regulations approval.
How much does a porch cost in Dumbarton?
In Dumbarton, a porch typically costs £6,250–£15,500 from a 3 m² porch to a small front extension, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
Do I need planning permission for a porch in Dumbarton?
In Scotland a porch is permitted development if its footprint is no more than 3 square metres, it is no more than 3 metres high and more than 2 metres from a boundary with a road, outside conservation areas. A building warrant may be needed depending on the design.
Can you move the gas or electric meter?
Meters belong to the supplier or network operator. We coordinate their move as part of the job, which can add time.
