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Loft Conversions Hull
Create Space Without Moving House

Service Overview

A loft conversion is one of the most cost-effective ways to add a bedroom, home office, or bathroom to your Hull property without the upheaval of moving or the expense of a ground-floor extension. BuildFastHullLimited has completed loft conversions across Hull's housing stock, from Victorian terraces in HU3 to detached family homes in HU10, and we manage the full project from structural design through to final finish.

Loft Conversion Hull

Types of Loft Conversion We Carry Out in Hull

Velux / Rooflight Loft Conversion

The most straightforward and affordable type of loft conversion, involving no changes to the existing roof structure. We install Velux or equivalent roof windows to bring in natural light and headroom. Ideal for properties with good existing head height, typically 2.2 metres minimum from floor to ridge.

Best for: Creating a bedroom or office without altering the roofline. No planning permission required in most cases.

Dormer Loft Conversion Hull

The most popular conversion type for Hull’s semi-detached and terraced properties. A dormer extends the rear roof slope outward to create a flat-roofed extension that significantly increases both floor area and usable headroom. The result is a full-height room with proper windows rather than a restricted attic feel.

Best for: Properties where a Velux conversion would leave insufficient standing room. Usually falls within Permitted Development on the rear elevation.

Hip-to-Gable Conversion

Common on detached and semi-detached properties in Hull’s suburban areas, HU10, HU13, HU14, where the hipped roof slopes down at the sides. We extend the side slope to create a vertical gable wall, dramatically increasing the internal volume of the converted space.

Best for: Larger properties where maximum loft space is the priority. Often combined with a rear dormer.

Mansard Loft Conversion

A more extensive conversion where the entire rear roof slope is rebuilt at a steeper angle, typically 72 degrees, with a flat roof at the top. Provides the maximum floor area and full ceiling height across the width of the property. Mansard conversions require planning permission and are more common in Hull’s period terraces.

Best for: Maximum space creation. Commonly used in Hull’s Victorian and Edwardian terraces.

What's Included in Our Loft Conversion Service

BuildFast Hull Limited manages every stage of your loft conversion in Hull:

  • Structural assessment of existing floor joists and roof structure
  • Design and drawings for building regulations submission
  • Building control notification and inspections
  • Steel beam installation where required to carry new floor loads
  • Staircase design and installation
  • Dormer structure (if applicable) — framing, weatherproofing, roofing
  • Insulation to current building regulations standards
  • First and second fix joinery — windows, doors, skirting
  • Plastering, electrics, and lighting (managed through our trusted trade contacts)
  • Full decoration-ready finish

How Much Does a Loft Conversion Cost in Hull?

Loft conversion costs in Hull vary based on type, size, specification, and complexity of the existing structure. As a general guide:

  • Velux / Rooflight conversion: £15,000 – £25,000
  • Dormer conversion: £25,000 – £40,000
  • Hip-to-gable conversion: £30,000 – £45,000
  • Mansard conversion: £40,000 – £60,000

These are indicative ranges for Hull properties. We provide free site visits and detailed written quotations, the only way to get an accurate figure is for us to assess your specific roof structure and requirements.

Frequently Asked Questions

Most dormer and Velux conversions on the rear of properties fall within Permitted Development Rights and do not require planning permission. Hip-to-gable and mansard conversions, and any conversion on a property in a conservation area, typically do require permission. We advise on this as part of our free initial assessment.

A standard dormer conversion in Hull takes 6–10 weeks from start of works. More complex conversions, or those involving planning permission, will take longer. We provide a clear programme of works before starting.

Yes. A bedroom and bathroom loft conversion typically adds 15–20% to a property's value. Given Hull's average house prices, that often represents a return significantly above the conversion cost.

Most lofts in Hull can be converted. Key factors are roof pitch (ideally 30 degrees or more), head height, and the condition of existing joists. Our free site assessment will confirm viability before you commit to anything.

Get in Touch

Have a project in mind or just need some advice? Let’s talk about how we can bring your ideas to life.