The duration of an average loft conversion in England can vary depending on the complexity of the project and the specific type of conversion being undertaken. However, here are some general time frames for different types of loft conversions:
1. **Rooflight Conversion**:
This is the simplest type of conversion, where skylights are added and minimal structural changes are made. These typically take around 4 to 6 weeks to complete.
2. **Dormer Conversion**:
This involves extending the existing roof to create additional floor space and headroom. Dormer conversions usually take around 6 to 8 weeks.
3. **Hip-to-Gable Conversion**:
This involves changing the sloping side of the roof to a vertical wall to increase space. This type of conversion generally takes about 8 to 10 weeks.
4. **Mansard Conversion**:
This is the most complex type of loft conversion, involving significant alterations to the roof structure. Mansard conversions can take anywhere from 10 to 12 weeks or more.
These time estimates include the main construction phase but do not account for the planning and design stages, which can add several more weeks to the overall project timeline. Additionally, obtaining the necessary approvals from your local council can also affect the duration.
Recent studies show that a loft conversion that added a double bedroom and bathroom to a three-bed, one-bathroom house can add over 20 per cent to its value.
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