Google Ads and Analytics use Consent Mode. If you Reject, limited cookieless page-view and conversion signals support modelled measurement. If you Accept, your submitted email and optional phone are hashed for ad measurement.Privacy Policy

Chat on WhatsApp
Skip to main content
Across Hampshire

Velux Loft Conversion Hampshire

Use roof windows to bring daylight into an existing roof space. Planning restrictions, structure, headroom and stair access still need property-specific checks.

A Velux (roof light) conversion installs windows into the existing roof slope without altering the external roofline. Where the roof space already has sufficient ceiling height, this is often the most efficient route to creating a usable room. Hampshire Build provides all the architectural drawings and building regulations documentation on a fixed fee.

Why Choose a Velux Conversion?

  • No planning permission needed in almost all cases
  • Works in conservation areas — no external change to roofline
  • Lower build cost than a dormer conversion
  • Faster to construct — typically 2–4 weeks on site
  • Suitable for properties where PD rights are restricted
  • Building regulations approval is still required; our package drawings are prepared for Building Notice submission

When a Velux Conversion Is the Right Choice

A Velux loft conversion works best when two conditions are met: the existing roof has sufficient pitch to provide adequate ceiling height (at least 2.2 metres at the ridge is the practical minimum), and the floor structure is capable of being upgraded to habitable room standard without major structural intervention.

Many Hampshire properties built in the 1930s, 1940s, and 1950s have steep roof pitches — often 45 degrees or more — that provide excellent ceiling heights throughout the roof space. For these properties, a Velux conversion is often the most efficient route: no structural works to the external roof, no planning permission in almost all cases, and a lower build cost than a dormer.

Velux conversions are particularly appropriate for properties in conservation areas across Hampshire, where a dormer extension may be refused on design grounds or face planning restrictions. In Winchester's conservation areas, Bishops Waltham, Alresford, and the New Forest villages, a Velux conversion allows homeowners to gain a habitable room without any external alteration that might attract planning scrutiny.

Where the existing roof space does not provide sufficient ceiling height for a full standing room, Hampshire Build will advise whether a dormer conversion is a better fit for your property and provide a clear comparison of costs and outcomes.

Best suited for

  • Properties with steep roof pitches (35°+)
  • Conservation area properties
  • Properties where PD rights are restricted
  • Owners wanting the simplest, quickest route
  • Properties where budget is the primary constraint

Consider a dormer when

  • →The roof pitch is below 35° (limited head height)
  • →You want a full en-suite bathroom
  • →Maximum usable floor space is the priority
  • →A standing-height room throughout is required
  • →The property is detached with a hipped roof

Fixed-Fee Pre-Build Packages

All prices exclusive of VAT. No hourly rates.

Pre-Build Package

£1,950 + VAT

Professional on-site measured survey; planning drawings and application; building regulation drawings; independent qualified structural engineer calculations.

Most Popular

Premium Package

£2,950 + VAT

Everything in Pre-Build Package, plus: detailed schedule of works; contractor vetting and two proposals; client-focused building contract.

Expanded Pre-construction Scope

Premium Plus Package

£3,950 + VAT

Everything in Premium Package, plus: staged programme mapped to contractor payments; Building Notice submission; one Party Wall notice to one adjoining owner.

Frequently Asked Questions

We help identify the planning route for your roof windows and prepare the planning and building regulation drawings for your habitable loft conversion.
A Velux conversion works best when the existing roof space already has sufficient ceiling height — typically at least 2.2 metres at the ridge point. Many Hampshire properties built before 1970 have steeper roof pitches that provide this height. If the ceiling height is marginal, Hampshire Build will advise whether a Velux conversion can deliver a habitable room or whether a dormer is needed to create sufficient standing space. We assess this at the initial site survey.
Our design packages are Pre-Build £1,950 + VAT, Premium £2,950 + VAT and Premium Plus £3,950 + VAT. The packages page explains the scope. Structural calculations are prepared by an independent qualified structural engineer.
A Velux (roof light) conversion installs windows into the existing roof slope without altering the roof structure or external profile. The ceiling follows the slope of the roof, limiting head height in parts of the room. A dormer breaks out of the existing roofline to create a box-shaped extension with a flat or pitched roof, providing full head height throughout the new room. Velux conversions are simpler, cheaper, and require no planning permission in almost all cases. Dormers create a larger, more usable room but are more complex to construct and may require planning permission.

Book Your Complimentary Consultation

We will assess whether your roof space is suitable for a Velux conversion and provide a clear fixed-fee price. No obligation.

Loft Conversion Design Hampshire Dormer Loft Conversions Hip-to-Gable Conversions Winchester Our Packages

Explore our loft conversion design hub for roof types, local planning considerations and related guides.