Rear view of a single storey house extension under construction with a new flat roof being fitted

House Extensions in Southampton

Need House Extensions in Southampton ?

House Extensions in Southampton Operating Across Southampton

Professional House Extensions in Southampton

Aline Construction provides premier house extensions in Southampton, helping homeowners transform their living spaces with bespoke single-storey, double-storey, and wrap-around designs. Whether you are looking to create a spacious open-plan kitchen or need extra room for a growing family, our expert team manages the entire project from initial design to final completion. As local specialists, we bring extensive experience in residential extensions, ensuring that every addition complements your property while significantly increasing its value.

A single-storey rear extension with a flat roof and French doors
Why Choose Us?

Managing Your Extension from Foundation to Finish

Our building process is designed to be seamless and stress-free for you. We begin with a detailed consultation to understand your requirements, followed by thorough site preparation and groundworks. Our team, which holds NVQ Level 2 Bricklaying and Blue Skilled Worker CSCS credentials, handles all structural alterations, including precision RSJ and steel beam installation. We manage every trade, from foundations and drainage to roofing and interior finishings, providing a comprehensive service that keeps your project on track and within scope.

Bespoke Single & Double-Storey House Extensions

Open-Plan Kitchens & Wrap-Around Additions

Complete Project Management & Groundworks

Expert Guidance on Building Regulations & Planning

Structural Alterations & Steel Beam (RSJ) Installation

Fully Insured, NVQ Level 2 & CSCS Accredited Builders

Aline Construction building a single-storey house extension with blockwork and timber roofing

15+

Years Experience

100%

Fully Insured

Bespoke House Extensions

From stunning single-storey kitchen extensions to spacious double-storey additions, we build aspirational, open-plan spaces tailored perfectly to your lifestyle.

Certified & Fully Insured

Backed by NVQ Level 2, Triple SDS, Blue Skilled Worker CSCS cards, and comprehensive Public Liability Insurance. We expertly navigate all building regulations.

Totton & Hampshire Coverage

Delivering premium home extensions across Totton, the New Forest, and a 30-mile radius of Southampton. Call 023 8272 1949 today to discuss your project.

Structural timber framing and concrete blockwork being built for a single-storey house extension
Partially built blockwork extension on a concrete base.

15+

Years Experience

Who We Are

How Do We Navigate Planning and Regulations?

Navigating the complexities of planning permission and building regulations can feel overwhelming, but at Aline Construction, we handle the red tape for you. We ensure that every structural change fully complies with Southampton City Council standards and national building control regulations. Our team is also well-versed in the requirements of the Party Wall Act, ensuring that your project proceeds smoothly while maintaining positive relations with your neighbours. We take pride in our ability to guide you through the compliance process, providing the reassurance that your new extension is built to the highest safety and legal standards.

Monday-Sunday

Open 24 Hours

Call Us Now

023 8272 1949

House Extensions in Southampton And Surrounding Areas

Local Southampton Experts Operating Across All Of Southampton

Concrete blockwork and doorway construction for a new residential building project

Why Local Homeowners Trust Aline Construction

Choosing the right building partner is essential for a successful home improvement project. Our commitment to quality is backed by our Triple SDS accreditation and full public liability insurance, giving you total peace of mind throughout the build. We combine technical expertise with a deep understanding of local architecture in Southampton and the surrounding areas. By focusing on detail-oriented craftsmanship, we ensure that your home extension is not only functional and compliant but also an aspirational upgrade that reflects your personal style.

Timber framed lean-to extension attached to a brick house under construction

Areas We Cover

Aline Construction: Delivering expert construction, property refurbishments, and home renovations across Southampton and a 30-mile radius, proudly serving Winchester, Portsmouth, Eastleigh, Romsey, Fareham, and the New Forest.

023 8272 1949

Where We Deliver Expert Construction Services

We are proud to serve Southampton and the wider Hampshire region, reaching clients within a 30-mile radius of our base. Whether your property is located in the heart of the city or in nearby towns like Winchester, Portsmouth, Romsey, or Eastleigh, our team is equipped to provide high-quality building services. We are committed to maintaining our reputation as the premier choice for residential extensions across the South, delivering consistent reliability and professional excellence on every site we manage.

Find Us Here

27 Severn Rd, Southampton, SO16 9BX

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Ready to Start Your House Extension in Totton & Hampshire?

Whether you are envisioning a spacious open-plan kitchen or a stunning double-storey addition, our expert builders at Aline Construction are here to bring your aspirational home improvements to life. Let our local specialists handle everything from building regulations to the final bespoke finish.

023 8272 1949

Bespoke Extensions • Fully Project Managed • Serving Southampton & The New Forest

NVQ Level 2
Expert Craftsmanship
CSCS Blue
Skilled Worker Certified
Fully Insured
Public Liability Protection