Expanding your property requires precise planning, structural expertise, and reliable project management.

At Al Mamlaka Construction & Fitout, we have spent over 15 years delivering high-quality residential construction across Norbury, Croydon, and the surrounding South London boroughs.

From initial groundworks to final handover, our team manages every phase of your build with clear communication and exact scheduling.

Adding Space Home

Selecting the right structural approach determines the value and functionality your new space provides.

We guide homeowners through the technical realities of expanding their footprint.

Single vs. Double Storey Extensions

A well-planned single storey extension expands your ground floor living area, often falling under Permitted Development Rights depending on your property type.

This involves excavating standard strip footings and constructing load-bearing walls to support a new flat or pitched roof.

If you need bedroom space alongside ground-floor expansion, a double storey extension is the logical progression. This requires deeper foundation underpinning and full local authority Planning Permission.

For properties looking to build upwards, adding a second floor extension involves reinforcing the existing structure to safely carry the new structural load.

Expanding Kitchens and Living Areas

Many South London homeowners want to modernise Victorian or 1930s layouts. Small kitchen extensions often involve installing RSJ steel beams to safely remove existing rear walls, creating a seamless open-plan space.

We provide practical extension design ideas that maximize natural light through roof lanterns and bi-fold doors, ensuring the new structure integrates perfectly with your existing property.

Modern Addition Alternatives

For clients prioritizing speed, modular home extensions offer a streamlined alternative to traditional blockwork.

These units are constructed off-site and craned into position, reducing the time spent living on a construction site.

Whether you choose modular or traditional masonry for your room addition to house, our team ensures full Building Control compliance from day one.

Clear Timelines and House Extensions Cost

Financial transparency and strict scheduling prevent project delays. We operate with absolute clarity regarding site timelines and budgets.

Transparent Cost Breakdown

Understanding your house extensions cost upfront allows you to plan your project with confidence.

While minor works and extension planning start from £5,000, final costs depend heavily on square meterage, steel requirements, and finish quality.

We provide itemized quotes covering groundworks, materials, labor, and waste removal.

The Project Timeline

A standard rear extension typically takes 12 to 16 weeks to complete.

• Weeks 1–3: Site preparation, digging footings, and pouring concrete.
• Weeks 4–8: Constructing the structural shell, installing RSJ beams, and completing the roof.
• Weeks 9–10: First fix plumbing and electrical wiring.
• Weeks 11–14: Plastering, second fix installations, decorating, and final snagging.

Protecting Your Property During Construction

Structural work introduces new liabilities. Securing the site and maintaining legal compliance protects your investment.

Managing Risk and Insurance

Most standard policies become void the moment major structural work begins. You must update your home insurance while building extension to a specialist renovation or joint names policy.

This protects against accidental damage, fire, or weather exposure while the property is structurally open.

The Party Wall Act 1996

If your excavation or steel installation occurs near a shared property boundary, you must serve formal notice to your neighbors.

Our site managers help you navigate Party Wall agreements, preventing legal disputes and keeping the project on schedule.

Choosing Trusted Builders Near Me

Finding reliable contractors is the most important decision you will make for your property. When searching for builders for extensions near me, you need a team that takes full accountability for the site.

As established home extension builders, Al Mamlaka Construction & Fitout provides a single, dedicated team for your entire project. We do not fragment the work across unverified sub-contractors.

To schedule a site survey with expert house extension builders, contact our Norbury office at 43 Solent Court, 1258 London Road. Call us today on 020 3576 0775 to discuss your architectural drawings and begin planning your build.