What is a bungalow loft conversion?
A bungalow loft conversion uses the large roof space of a bungalow to add bedrooms and a bathroom, turning it into a chalet bungalow. Dormers at the front, rear or both create headroom; some projects raise the roof entirely.
How much does a bungalow loft conversion cost in Wallington?
In Wallington, a bungalow loft conversion typically costs £58,500–£104,000 for a typical bungalow conversion with dormers, including VAT at 20% (standard rate). Building costs in London run about 30% above the UK average, and the figures for Wallington are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A typical bungalow conversion with dormers | £58,500–£104,000 |
| Higher specification | £104,000–£130,000 |
The biggest cost drivers are:
- Fire escape design
- Staircase position within the bungalow
- Bathrooms
- Finishes
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 bungalow loft conversion in Wallington?
The approval route for Wallington is set by planning law in England. In England rear dormers on a bungalow are often permitted development within the 50 cubic metre volume limit. Front dormers, roof raises and conservation-area work need planning permission.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
We check this for your address before design work starts, so there are no surprises later.
What we handle
What we take care of:
- Bathroom installation
- Building control sign-off
- Drawings and structural calculations
- Fire-safe escape windows or route
- Insulation, electrics, plumbing and plastering
- Survey and planning check
How long does it take?
Build time is typically 8 to 14 weeks on site. Allow time beforehand for drawings and approvals, usually 3 to 4 months.
Building in Wallington
Victorian and Edwardian terraces dominate many London streets, which is why side return, wraparound and mansard projects are so common here.
Our Wallington coverage includes postcode districts SM6, and we also work in nearby places such as Sutton, Carshalton and Purley.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about bungalow loft conversions in Wallington
Can every bungalow have a loft conversion?
Most can, but low-pitched roofs may need dormers or a roof raise to give enough head height. We check the structure at the survey.
Where does the staircase go?
Usually from the hallway or a bedroom that becomes a landing. Losing a little ground-floor space is normal.
How much does a bungalow loft conversion cost in Wallington?
In Wallington, a bungalow loft conversion typically costs £58,500–£104,000 for a typical bungalow conversion with dormers, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
Does it need planning permission?
Rear dormers are often permitted development; front dormers, roof raises and work in conservation areas need an application.
How long does a bungalow loft conversion take in Wallington?
Typically 8 to 14 weeks on site. Design and approvals beforehand usually take 3 to 4 months.