Create a bigger, brighter and more functional home without the stress of moving. A house extension is one of the most effective ways to add valuable living space while increasing the long-term value of your property. Whether you need a larger kitchen, an extra bedroom, a home office or a fully reconfigured ground floor, Basildon Building delivers extensions built to the highest standards.
From architectural design and planning guidance to structural work, roofing, glazing, plumbing, electrics and finishing, we manage the entire process from start to finish. Our team builds extensions that blend seamlessly with your existing home, maintaining structural integrity and aesthetic flow.
We work across Basildon, Pitsea, Laindon, Kingswood, Langdon Hills, Wickford, Billericay and surrounding Essex locations — providing tailored solutions for homes of every style.
We have extensive experience working on Basildon property types, including:
Kingswood and Lee Chapel semis
Laindon and Pitsea terraces
Wickford and Billericay detached homes
Older Basildon estates and modern developments
Our knowledge of local planning expectations, build styles and structural layouts helps ensure smoother, faster completion.
Home Extension
Transform your Basildon home with a single-storey rear extension that creates valuable living space. Perfect for open-plan kitchen-diners, these extensions are the most popular choice across SS13-SS16 postcodes. We design light-filled spaces with bi-fold or sliding doors opening onto your garden, creating seamless indoor-outdoor living. Our extensions incorporate structural steelwork, premium insulation, underfloor heating, and complete first and second-fix services. Most single-storey rear extensions fall under permitted development rights, avoiding lengthy planning applications. We serve Basildon, Billericay, Wickford, Laindon, and Pitsea, delivering extensions that enhance property values by 15-20%. Projects typically complete within 10-12 weeks from groundworks to final decoration, with minimal disruption to your daily routine.
Maximise your property’s potential with a double-storey extension in Basildon. Adding space on both ground and first floors, these extensions provide exceptional value per square metre compared to single-storey builds. Ideal for adding bedrooms with en-suites above extended kitchen-diners, or creating home offices over utility rooms. We handle all structural calculations, planning applications with Basildon Council, and building regulations approval. Our double-storey extensions serve properties across Basildon, Wickford, and Billericay, using quality materials that match existing brickwork and roofing. Each project includes complete groundworks, foundations, structural steelwork, roofing, windows, electrics, plumbing, plastering, and decoration. Double-storey extensions typically add 25-35% to property values while creating the space growing families need without relocating.
Unlock wasted space with a side extension on your Basildon property. Perfect for semi-detached and detached homes with side access, these extensions widen rooms or create additional ground-floor living areas. Popular uses include enlarging kitchens, adding utility rooms, creating downstairs bathrooms, or forming wider through-lounges. We build side extensions across SS postcodes, working within the one-metre boundary rule for permitted development where possible. Our extensions incorporate matching brickwork, proper damp-coursing, insulation to current standards, and complete services installation. Side extensions work particularly well when combined with rear extensions for dramatic transformations. Projects typically complete within 8-10 weeks, and we maintain access throughout construction where possible. Side extensions offer cost-effective space gains without sacrificing garden areas.
Create dramatic transformations with wraparound extensions combining rear and side builds. These comprehensive projects deliver maximum space gains and complete ground-floor reconfigurations. Popular across Basildon, Billericay, and Wickford, wraparound extensions typically create expansive open-plan kitchen-dining-living areas that transform how families use their homes. We handle complex structural work including multiple steel beam installations, extensive glazing for natural light, and complete internal reorganisation. Planning permission is usually required for wraparound extensions, which we manage alongside building regulations approval. Our designs maximise floor space while respecting neighbouring properties and maintaining garden access. These extensions offer the most flexible layout possibilities, often incorporating utility rooms, downstairs WCs, and seamless garden connections. Wraparound extensions provide exceptional value, adding 30-40% to property values.
1. Free Home Consultation & Assessment
We take measurements, discuss ideas, budgets and timelines, and identify the best layout options.
2. Architectural Drawings & Planning Support
Our team produces full drawings, structural calculations and can handle planning submissions if required.
3. Structural Work & Foundations
We carry out all groundwork, steels, walls, roofing, insulation and glazing with precise attention to detail.
4. Plumbing, Electrics & Heating
Including underfloor heating, lighting design, new radiators, plumbing for kitchens/utility rooms and more.
5. Interior Fit-Out & Finishing
Plastering, flooring, skirting, carpentry, painting — everything needed to complete your new space beautifully.
6. Building Control Approval
Your project is fully compliant, inspected and certified for safety and long-term value.
Create a warm, fully insulated garden room ideal for working, relaxing or exercising all year round. We design and build stylish outdoor offices, gyms and studios using high-quality materials and modern construction techniques. Quick to install and built to last, a garden room is one of the most effective ways to add extra usable space to your Basildon home.
Transform your unused attic into a bright and practical new living space. Whether you need an extra bedroom, home office or ensuite, our loft conversions include all structural work, insulation, electrics and finishing. We build Dormer, Velux and hip-to-gable conversions designed to maximise light, comfort and property value.
Expand your home with a beautifully built single-storey, double-storey or wraparound extension. From open-plan kitchens to larger living areas and additional bedrooms, we manage the entire process — foundations, structure, roofing, glazing and finishing. Our extensions are designed for long-term durability and seamless integration with your existing property.
Get expert advice on layouts, budgets, planning rules and build options for your Basildon home.