House Extensions

Rear, side-return and wraparound extensions that open up your home to light and space. We coordinate drawings, structure and building control.

Rear Extension & Structural Transformation

This project showcases the full transformation of a North London property through a complete rear extension and major structural reconfiguration. Our team at 2A Construction Ltd handled every stage — from demolition and steel installation to new blockwork, cavity walling, and structural openings — following all Building Control and engineering requirements. This rear extension project involved full demolition of the back wall, installation of new steel beams, and construction of a brand-new blockwork structure to increase living space and improve the home’s layout. We carried out all structural works safely using professional temporary support systems and completed the extension walls with insulated cavity blockwork for long-term durability and energy efficiency.

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Rear Extension – Drainage Diversion & Groundworks

This project shows the early-stage works for a rear extension, focusing on full drainage diversion, ground preparation, and site setup. Before starting brickwork or foundations, our team carried out essential underground works to ensure the new extension is fully compliant, waterproof, and structurally sound. 🔧 Scope of Works Completed: 1️⃣ Excavation & Exposure of Existing Services Careful excavation along the property boundary Identification of existing clay and plastic drainage lines Removal of debris, collapsed soil and old brickwork Safe working area created with temporary weather protection 2️⃣ Full Drainage Diversion & Reconfiguration Installation of a new three-way drainage chamber Redirection of foul and surface water lines to accommodate the extension footprint Removal of old damaged pipework New 110mm underground drainage installed with correct falls Proper connection of rainwater downpipe into the new drainage system 3️⃣ Bedding & Structural Support All new pipework bedded on compacted MOT/gravel and concrete haunching Chambers set at correct levels for future access and maintenance Testing for flow and leak prevention 4️⃣ Ground Preparation for Extension Build Trench clearing for future foundation pouring Protection of existing structure Site organised for next phase: foundation works and slab preparation 🏗 Purpose of These Works This phase prepares the property for the construction of a rear extension, ensuring: Proper drainage to avoid future flooding Compliance with UK Building Regulations (Part H) Long-term structural stability Safe integration of new rainwater and foul water systems

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PROJECT UPDATE | Groundworks & New Extension Build Begins

The transformation has officially started. Our team has completed the full internal strip-out, installed the steel reinforcement mesh, and poured a fresh RC (reinforced concrete) slab — setting the foundation for the new rear extension. This stage is crucial for strength, stability, and long-term durability. From here, the structure will rise quickly. 🏗️ Services Delivered: ✔ Strip-out & site preparation ✔ Installation of DPM (damp-proof membrane) ✔ Full steel reinforcement mesh ✔ Concrete slab pour & levelling ✔ Preparation for structural works Stay tuned — the full extension build is now underway.

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2A CONSTRUCTION – START OF EXTENSION WORKS

Another project underway! Our team has officially started the rear extension construction, and the first phase is progressing exactly to plan. 👷‍♂️ What’s been done so far: • Full site preparation and safe access setup • Demolition of the old rear wall • Structural openings created for the new steel beams • Installation of temporary supports • First lift of blockwork and brickwork underway • Setting out walls, levelling and aligning with high accuracy • Preparing for the steel installation and continuation of the external walls 🔧 Focus of this stage: Creating a strong, safe structural shell that will support the new extended living space. Every block, brick and beam is set according to building control requirements and engineering drawings. 🏡 End result: A modern, open, spacious ground-floor extension that will transform the rear of the property. More updates coming soon as the structure rises. If you’re planning an extension, loft, or full renovation — 2A Construction Ltd is here to deliver quality from start to finish.

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