Testimonials
"Lee completed a dormer to the rear conversion on my house and I can not fault the work. He is extremely professional and precise with his workings which has left my loft looking pristin..."

Portishead is one of North Somerset's most popular residential destinations, combining coastal living with excellent road links to Bristol via the M5. The town has a broad mix of property types, from Victorian terraces and period homes in the older parts of town through to the modern detached and semi-detached houses of the marina-era developments. Concept Space and Design have carried out loft conversions across Portishead and are familiar with the planning and structural considerations specific to the area.
Portishead's strong family demand and growing reputation as a commuter town mean that adding space through a loft conversion is a particularly sound investment here. Moving to a larger home in Portishead carries a significant price premium, and many homeowners find that converting the loft delivers equivalent or greater usable space at a fraction of the cost of upsizing.
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We carry out the full range of loft conversion types across Portishead and North Somerset.
A rear dormer is one of the most popular conversion types in Portishead, suitable for the town's wide range of semi-detached and terraced properties. Most rear dormers fall under permitted development, meaning no planning application is required.
Find Out MoreIdeal for Portishead's semi-detached homes where the hipped roof limits loft space. A hip-to-gable conversion replaces the inward-sloping end of the roof with a vertical gable wall, significantly increasing the usable floor area.
Find Out MoreProperties with rear outriggers are well suited to L-shaped loft conversions. This design uses two connected dormers, one on the main rear roof and one extending over the outrigger, to create substantial additional living space with good headroom. L-shaped conversions typically require planning permission, which we manage on your behalf.
Find Out MoreFor Portishead properties with sufficient existing headroom, a Velux conversion is the most straightforward and cost-effective option. Roof windows are fitted with no change to the roofline and no planning permission required in most cases.
Find Out MoreMany of Portishead's modern homes were built with trussed roofs. We carry out the specialist structural work required to cut and restructure the existing trusses, opening up the loft void and making conversion possible where it would otherwise not be.
Find Out MorePortishead has a large number of detached and semi-detached homes with hipped roofs, particularly in the newer residential areas. A wrap around conversion combines rear and hip-end dormers to maximise the usable space from the roof on both elevations.
Find Out MorePortishead property values have grown consistently, driven by strong demand from Bristol commuters and families drawn to the town's coastal setting and good schools. A loft conversion typically adds 15 to 25% to the value of a Portishead home. With property prices in the town at a significant premium over inland alternatives, a well-executed loft conversion often delivers one of the strongest returns on investment available to homeowners in the area.
Every loft conversion we complete in Portishead comes with our 10-year structural guarantee as standard. All work is completed to full building regulations approval, and specialist trades are carried out by our own trusted, long-standing contractors who are fully qualified and Gas Safe registered.
We offer a free, no-obligation consultation at your Portishead property. We will assess your loft space, discuss the best conversion type for your home, confirm your planning position and provide a fixed-price quote with no obligation to proceed.
Book Your Free ConsultationConcept Space and Design carry out loft conversions across Portishead and the surrounding areas of North Somerset including Long Ashton, Nailsea, Clevedon and Bristol.
"Lee completed a dormer to the rear conversion on my house and I can not fault the work. He is extremely professional and precise with his workings which has left my loft looking pristin..."
Find out about how a loft conversion can improve your home, important steps to consider and the type of conversions we offer to Bristol & surrounding areas
See the difference Concept Space & Design Loft Conversions can make and the time, detail and effort we put into every aspect of your conversion from start to finish
Thank you for visiting us today.
With over 21 years of combined experience in the loft conversion industry, whether it’s to create extra space for a new addition to the family, a place to relax or to work. It is our privilege and passion to deliver you a fully bespoke design and build package to create your dream home.
Lee Western
Managing Director