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St Albans office · Hertfordshire, Hampshire, Surrey, Berkshire, Buckinghamshire, Oxfordshire, Wiltshire and London

Hip to Gable Loft Conversion Design

A hip-to-gable conversion changes a sloping roof end into a vertical gable wall. Its suitability depends on the existing roof, the proposed layout and the planning context.

Planning your project? Try our loft conversion cost calculator for an indicative cost and planning view for your address.

We assess the roof form and intended room layout, then prepare the agreed design information. The service covers measured survey, planning drawings and application, building regulations drawings, and calculations prepared by an independent qualified structural engineer.

What Hampshire Build Provides

Feasibility assessment — is your roof suitable?
Full planning application drawings and design statement
Planning application management with your local authority
building regulation drawings prepared for Building Notice submission, with structural calculations by an independent qualified structural engineer
Structural engineer coordination (Premium Package)
Fixed-fee from £1,950+VAT — no hourly billing

What Is a Hip-to-Gable Conversion?

A hipped roof slopes down at the end as well as along the front and rear. A gable-end roof instead has a vertical end wall. The roof shape affects the clear floor area and layout available within the loft.

A hip-to-gable conversion replaces the sloping end section with a vertical gable wall. The roof structure and proposed internal layout need to be considered together to understand how the altered form may support the intended use of the loft.

Changing the roof form does not automatically rule out permitted development. Check the combined roof-volume allowance and all other conditions, alongside local restrictions and the property's planning history. Where a planning application is needed, Hampshire Build prepares the drawings and supporting design information.

A hip-to-gable may be considered alongside a dormer where the roof form, layout and planning context support the combined proposal.

Hampshire Areas Particularly Well Suited

A measured survey can establish whether the existing roof form and layout suit a hip-to-gable conversion.

Basingstoke

Popley, Chineham, Kempshott, South Ham — large stock of hipped-roof semis and detacheds

View Basingstoke loft page →

Andover

Millway Rise, Walworth, Charlton — 1970s estates with excellent hip-to-gable potential

View Andover loft page →

Southampton

Bassett, Bitterne Park, Thornhill — inter-war and post-war hipped-roof semi-detacheds

View Southampton loft page →

Fareham

Portchester, Whiteley, Locks Heath — 1970s–80s detached stock ideal for hip-to-gable

View Fareham loft page →

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.

Premium Package

£2,950 + VAT

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

Most Complete

Premium Plus Package

£3,950 + VAT

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

Frequently Asked Questions

A hip-to-gable conversion may qualify for permitted development if all roof-enlargement conditions are met; it does not automatically require a planning application. Check the additional roof-space volume, height, materials and the property's planning history. Conservation areas, Article 4 Directions, listed buildings and previous conditions can affect the route.

A hip-to-gable design can suit a detached or semi-detached home with a sloping roof end. We assess roof structure, usable space and stair access for homes in St Albans and across our service area.

Our packages are Pre-Build £1,950 + VAT, Premium £2,950 + VAT and Premium Plus £3,950 + VAT. Compare the packages page for the agreed scope. Structural calculations are prepared by an independent qualified structural engineer.

A hip-to-gable arrangement can be combined with a rear dormer where structure, layout and planning restrictions allow. The gable changes the sloping roof end, while the dormer provides headroom towards the rear. Assess the combined additional roof volume and the whole proposal, including stair access and neighbouring amenity.

Book Your Complimentary Consultation

We will discuss your roof form, likely planning route and the fixed-fee scope for the design work.

Loft Conversion Design Hampshire Dormer Loft Conversions Velux Loft Conversions Basingstoke Our Packages

loft conversions Hampshire for roof types, local planning considerations and related guides.