A loft conversion is one of the best-value home improvements you can make. You're adding an entire new floor without touching your garden or footprint. But how much does it actually cost in Essex? Here's a realistic breakdown based on hundreds of projects we've completed across the county.
Loft Conversion Costs by Type (Essex, 2025)
No dormer — skylights only. Most cost-effective option.
Adds a box-shaped extension to the roof for more headroom.
Ideal for semi-detached homes — extends the sloped hip end.
Combines rear and side dormers for maximum space.
Near-vertical rear wall for maximum floor area. Premium option.
Prices include VAT and are based on standard specification. Actual costs depend on property type, access, and finishes.
What's Included in the Price?
A full loft conversion quote from Paul Bailey Construction includes:
What Affects the Cost?
Conversion type
A Velux conversion is significantly cheaper than a mansard because it involves less structural work and no external extension.
En-suite bathroom
Adding a bathroom adds £8,000–£15,000 depending on specification. Most clients include at least a shower room.
Staircase position
Where the staircase goes affects cost and the space lost on the floor below. Complex staircases cost more.
Head height
If your existing loft has less than 2.2m of ridge height, a conversion may not be viable without raising the roof — which adds significant cost.
Roof type
Hipped roofs require more structural work than gable-ended roofs. Trussed roofs (common in 1970s–90s homes) need more strengthening than cut roofs.
Specification
Velux windows, flooring, bathroom fittings, and decoration all vary widely in cost. A high-spec finish adds £10,000–£20,000 over a standard spec.
Is My Loft Suitable?
Not every loft can be converted. The key factors are:
The best way to find out if your loft is suitable is to have us visit and assess it. We offer free loft surveys across Essex — we'll measure up, check the roof structure, and give you an honest assessment of what's possible and what it will cost.
Book a Free Loft Survey
We'll assess your loft and give you a detailed, no-obligation quote — completely free.