Project Case Study: Kitchen Side Extension & Dormer Loft Conversion in Archway, North London

Location: Archway, North London | Services: Kitchen Side Extension, Dormer Loft Conversion with Roof Terrace, Open-Plan Layout Transformation

The Archway project is a brilliant example of what is possible when every level of a London terraced home is reimagined with purpose and care. Our clients wanted more kitchen space, a transformed loft, and a home that felt genuinely open and connected — inside and out. NGC Build delivered all of it.

The Challenge

Like many North London terraced houses, this property in Archway had a narrow, underused side return alongside the kitchen and an untapped loft space above. The kitchen felt cramped and cut off from the garden. The loft was used only for storage. The overall layout needed a rethink to suit how a modern family actually uses their home.

Our clients were also keen to add outdoor space at a high level — a roof terrace off the loft conversion that would give them a private outdoor retreat above the rooftops of Archway.

The Kitchen Side Extension

We constructed a single-storey side extension into the side return, transforming the narrow underused passage alongside the kitchen into a generous, light-filled extension of the living space. The extension features a pitched roof with Velux rooflights, which flood the interior with natural light — solving the classic problem of side return extensions feeling dark and enclosed.

Bifold doors across the rear elevation give seamless access to the garden, erasing the boundary between the kitchen and outdoor space. Load-bearing wall removal and structural steel installation opened up the existing ground floor layout completely, creating a free-flowing open-plan kitchen and living area.

• Single-storey side return extension with pitched roof

• Velux rooflights for maximum natural light

• Bifold doors to the rear garden

• Structural steel installation after load-bearing wall removal

• Water underfloor heating throughout

• Rewired with new lighting throughout the extended space

The Dormer Loft Conversion with Roof Terrace

The loft conversion was a dormer design, extending the rear roof slope to create a full-height room at the top of the house. The standout feature is the integrated roof terrace — a private outdoor space accessible directly from the loft room, with views across the rooftops of North London.

The loft itself was redesigned as an open-plan layout, making it versatile enough to serve as a master bedroom, home office, or living space. Structural requirements and building regulations compliance were carefully managed throughout.

• Rear dormer loft conversion with full-height ceiling

• Integrated roof terrace with North London rooftop views

• Open-plan layout for maximum flexibility

• Sprinkler system installed to enhanced fire safety standards

• Structural compliance and building regulations managed end to end

What Our Client Said

He is professional, trustworthy and has endless patience. The work was completed on time and was to an extremely high standard. — Frankie B., Archway

The Result

The finished home is transformed at every level. The ground floor is now open, bright, and connected to the garden in a way it never was before. The loft is a genuine living space with a roof terrace that is one of the most enjoyable features of the whole home. The build was completed on time and to the high standard our clients expected.

Planning a Kitchen Extension or Loft Conversion in Archway or North London?

Archway, Holloway, Tufnell Park, and the surrounding areas of North London are full of terraced properties with exactly the same potential as this one. If you are thinking about a side extension, dormer loft conversion, or a combination of both, NGC Build would love to hear from you.

• Specialists in side return and wraparound extensions across North London

• Dormer and L-shaped loft conversions with or without roof terraces

• Full design and build service — one team from concept to completion

• Free consultation for homeowners in Archway and surrounding areas