Professional, reliable, and high-quality loft extensions. We manage the entire process for Portadown homeowners, from planning permission to the final coat of paint.
Get Your Free Portadown QuoteSee what your Portadown neighbours say about our loft conversion work.
"The best decision we made for our Portadown house. The extra office space is perfect. Great attention to detail from the whole team."
"We hired them for a shell conversion in Portadown and were so impressed we asked them to complete the fit-out too. Five stars."
"Building Group transformed our Portadown property's unused loft into two beautiful bedrooms. Excellent communication throughout and competitive pricing."
"My husband is finally out of the living room and into his new man-cave! Thank you Building Group for saving my sanity in Portadown!"
"Honest, reliable and skilled. Our mansard loft in Portadown looks incredible. They finished exactly on budget."
"High-end finish on our mansard extension. The carpentry and plastering work in our Portadown home is flawless."
See more genuine Portadown customer reviews and loft conversion project galleries.
Read More ReviewsTransform your Portadown property's unused loft space into beautiful, functional living areas with our professional loft conversion services. Whether you need an extra bedroom, home office, or playroom in Portadown, we create bespoke solutions tailored to your lifestyle.
Our experienced Portadown team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Portadown conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Portadown property to maximize space and value
The most cost-effective option for Portadown properties using roof windows for natural light. Perfect for Portadown homes with adequate headroom.
Add valuable floor space and headroom to your Portadown property with single or multiple dormers. Popular choice in Portadown for space optimization.
Transform sloping hip roofs into vertical gable walls in your Portadown home, significantly increasing usable floor space. Ideal for Portadown semi-detached properties.
The premium option for Portadown properties creating maximum space with near-vertical walls. Perfect for period properties in Portadown.
Your Portadown property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Portadown specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Portadown property and budget. Most Portadown conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Portadown have a 40-50 cubic meter allowance for roof extensions without full planning permission. We handle all Lawful Development Certificate applications for you.
Every conversion we build is inspected by approved inspectors to ensure compliance with Part B (Fire Safety) and Part L (Insulation) of the building regulations specific to Portadown housing stock.
Living in a terraced or semi-detached house in Portadown? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Portadown loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Portadown properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Portadown engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Portadown homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Portadown loft.
Plastering, decorating, flooring, and interior design services to create beautiful Portadown living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Portadown city centre, including period properties, modern homes, and conservation areas requiring specialist Portadown planning expertise.
Expert loft conversion services across all Portadown suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Portadown.
Specialist conversions for Portadown's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Portadown conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Portadown Loft Conversions Completed
Average Portadown Customer Rating
Years Serving Portadown
Portadown Building Control Approved
With over 15 years of experience in Portadown, we understand local planning requirements, building regulations, and architectural styles. Our Portadown team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Portadown terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Portadown semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Portadown conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"The best decision we made for our Portadown house. The extra office space is perfect. Great attention to detail from the whole team."
- Helen Baker, Portadown
"We hired them for a shell conversion in Portadown and were so impressed we asked them to complete the fit-out too. Five stars."
- Karen Clarke, Portadown
"Building Group transformed our Portadown property's unused loft into two beautiful bedrooms. Excellent communication throughout and competitive pricing."
- Charles Scott, Portadown
Loft conversion costs in Portadown vary based on type, size, and specifications. Typical Portadown prices: Velux conversions £20,000-£30,000, Dormer conversions £35,000-£45,000, Hip-to-gable £40,000-£55,000, Mansard conversions £45,000-£65,000. All Portadown quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Portadown survey and detailed quote.
A transparent guide to typical conversion costs in the Portadown area (2025 Estimates)
| Conversion Type | Suitability | Timeframe | Price Range |
|---|---|---|---|
| Velux (Roof Light) | Existing headroom > 2.3m | 4-6 Weeks | £20k - £30k |
| Dormer (Rear) | Semis & Terraces | 6-8 Weeks | £35k - £50k |
| Hip-to-Gable | End-terrace & Semi-detached | 8-10 Weeks | £45k - £60k |
| Mansard | Period Properties / London Styles | 10-12 Weeks | £50k - £75k+ |
*Prices are indicative for Portadown properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Portadown area. My job is to ensure your project meets local building regulations while maximizing every inch of space. I'm happy to visit your property for a preliminary structural assessment."
Four recent loft conversions across the UK — from a London mansard within a conservation area to an L-shaped Manchester dormer, a Birmingham hip-to-gable, and a Leeds rear dormer. Tap any project for the full case study.
Loft
Mansard loft conversion on a London Victorian terrace within a conservation area — full mansard build raising the rear roof line, slate-clad cheeks to match the neighbours, two double bedrooms with private en-suites, and a sky-lit landing. Approval secured under full planning, not Permitted Development.
Loft
L-shaped rear dormer loft conversion on a Victorian terrace — turning unused roof space into two double bedrooms and a shared en-suite, with two Velux windows to the front, a glass balustrade to the new staircase, and matching slate-grey finish to blend with the original roof.
Loft
Rear dormer loft conversion turning unused roof space into a master bedroom and en-suite, with two Velux roof windows to the front and a slim glass balustrade to the new staircase.
Loft
Hip-to-gable conversion with rear dormer on a 1930s semi-detached — squaring off the original hipped roofline to gain full standing headroom, creating a master bedroom with built-in wardrobes and a generous en-suite, plus a third Velux to the front for natural light.
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