Single-Storey Extension Start to Finish: Foundation Fails to Beautiful Build @SkillBuilder
Single-Storey Extension Start to Finish: Foundation Fails to Beautiful Build  @SkillBuilder
Uploaded June 2025 | Updated September 2026, 2 weeks ago
SJ Ward Builders built a single-storey extension and gave this house a facelift.
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🧱 Summary

🏗️ Major Structural Changes
The renovation includes a porch addition, side extension with three rooms, utility space, and internal restructuring like removing walls and inserting lintels.

🧰 Engineering Workarounds
Challenges included mismatched foundations, unexpected returns in footing, and coordination with building control. Creative problem-solving included repairing salt-glazed pipes and trench modifications.

🚧 Concrete & Leveling Innovations
Footings were poured with rotary laser-level setups and metal spikes. Repairs included strengthening weak points with lintels and rebars to manage structural loads.

🏠 Roofing Craftsmanship
Detailed rafter and hip roof pitching using Dan Cox’s roofing square and app. Attention to cuts and spans allowed precise angles and intersections for a lean-to roof with double hips.

🪚 Joinery & Timberwork
Complex joinery like installing triple beams, noggins, and OSB-backed stud walls for future kitchen and bathroom fixtures. Utility and shower spaces were optimised for hardware mounting.

🏗️ Utility & Plumbing Setup
Utility rooms featured stud walls with OSB, insulation, and specific mountings for plumbing. Plumbing ran in copper, with attention to inspection chamber integration.

🧱 Finishing Details
Brick slips were manually cut to match existing façades, and decorative elements like fascia and soffits were installed. Careful attention was paid to waterproofing and ventilation.

🪟 Internal Completion
Pocket doors are installed to save space. Rooms designated as “snug,” office, and ensuite for multi-use. Custom skirting, door furniture, and loft access were added.

🧼 Project Finalisation
Landscaping completed, including adjusted pathway and original gate reinstallation. Final inspection approved the work. The client assumed responsibility for some interior decorating.

🧑‍🔧 Reflections & Tools Review
Sam reflects on timing challenges, praises collaboration, and shares satisfaction with a new Makita saw, used extensively in the porch’s unique semicircular step.

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Single-Storey Extension Start to Finish: Foundation Fails to Beautiful Build

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