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 Larne?
In Larne, a porch typically costs £5,500–£14,000 from a 3 m² porch to a small front extension, including VAT at 20% (standard rate). That range is adjusted for Northern Ireland, where domestic building work typically costs around 14% below the national average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| From a 3 m² porch to a small front extension | £5,500–£14,000 |
| Higher specification | £14,000–£17,500 |
Your quote will depend mainly on:
- Whether building regulations apply
- Front door specification
- Moving meters, drains or the doorbell and lighting
- Size and roof style
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for a porch in Larne?
The approval route for Larne is set by planning law in Northern Ireland. In Northern Ireland a porch is permitted development if its ground area is no more than 3 square metres, it is no higher than 3 metres (3.5 metres with a pitched roof) and it is at least 2 metres from a boundary with a road.
Northern Ireland has no Party Wall Act. Work on shared walls relies on agreement with the neighbour and common law, so we agree the arrangements in writing before work starts.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
On a typical porch we handle:
- Plastering and decoration
- Roof and guttering
- Foundations and brickwork
- Front door and windows
- Design to match the house
- Electrics for lighting
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 Larne
Across Northern Ireland, bungalows and chalet bungalows are common, so loft conversions and rear extensions are popular projects.
Our Larne coverage includes postcode districts BT40, and we also work in nearby places such as Carrickfergus, Newtownabbey and Bangor.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about porches in Larne
Do you build porches in Larne?
Yes. We build porches across Larne, including postcodes BT40. Every project starts with a free home visit.
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.
Will it match my house?
We source matching bricks and tiles where possible, or suggest a deliberate contrast.
Do I need planning permission for a porch in Larne?
In Northern Ireland a porch is permitted development if its ground area is no more than 3 square metres, it is no higher than 3 metres (3.5 metres with a pitched roof) and it is at least 2 metres from a boundary with a road.
How much does a porch cost in Larne?
In Larne, a porch typically costs £5,500–£14,000 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.
How long does it take?
Usually 2 to 4 weeks on site.
