St Anne's

Terraced home benefits from contemporary rear extension.

This stunning Grade II listed townhouse in the heart of Notting Hill underwent a carefully considered renovation, bringing together contemporary glazing design and historic architecture. The brief was to modernise the rear of the property while preserving the original character and heritage of the listed building.

By incorporating a collection of slim framed and frameless glazing systems, the home has been transformed into a bright, open and light-filled living environment. The result is a sophisticated balance between old and new, where modern architectural glazing enhances the property without compromising its historic charm.

Sensitive Design for a Listed Building

Extending or renovating a listed property requires a delicate approach that respects the building's architectural significance. For this project, every design decision was made with preservation in mind, ensuring that the historic character of the townhouse remained intact while improving the quality of the internal living spaces.

Externally, the extension was designed to blend seamlessly with the original structure. Each brick used in the new extension was specially re-fired to create weathered edges, allowing the contemporary addition to sit harmoniously alongside the existing building fabric. The result is a subtle transformation that modernises the rear elevation while maintaining the property's established identity.

Slim Framed Sliding Doors Create a Bright Living Space

A key feature of the extension is a large expanse of slim framed sliding glass doors overlooking the garden. These minimal sliding doors create an entire wall of glass, maximising natural daylight and strengthening the connection between the interior and outdoor spaces.

The Sieger® slim sliding door system was specified for its exceptionally slim sightlines, starting from just 20mm. Bespoke pressing details further enhanced the minimalist aesthetic, ensuring uninterrupted views across the garden while allowing daylight to penetrate deep into the home.

Within the dining area, the oversized glazing creates a bright and welcoming atmosphere, transforming the space into a natural focal point for family life and entertaining.

 

Roof Glazing Maximises Natural Light

To introduce as much daylight as possible without impacting the building's external appearance, several roof glazing systems were incorporated into the design.

Slim strip rooflights were positioned above key living areas, including the dining space, to draw natural light into the centre of the home. These linear rooflights work in harmony with the large sliding glass doors, allowing daylight to move freely throughout the open-plan interior.

The combination of vertical and overhead glazing creates a brighter, more spacious environment while reducing the need for artificial lighting during the day.

Frameless Up and Over Rooflight

At the rear elevation, a striking up and over rooflight provides a dramatic architectural feature while flooding the extension with daylight.

The frameless structure was created using structural glass panels bonded together with structural silicone, leaving only minimal silicone joints visible between the panes. This highly engineered glazing solution creates the illusion of greater ceiling height and expands the sense of space within the extension.

The result is a bright, airy room with uninterrupted views of both the garden and the sky above.

Indoor-Outdoor Living Through Architectural Glazing

During the warmer months, the sliding glass doors and pivot door can be opened simultaneously to create a seamless transition between the interior living spaces and the landscaped garden.

Flush thresholds eliminate physical barriers between inside and out, enhancing accessibility while strengthening the connection to nature. This approach supports modern biophilic design principles, improving both the functionality and enjoyment of the space.

Combined with large areas of roof glazing and structural glass, the opening systems provide excellent natural ventilation and an abundance of daylight throughout the year.

This Notting Hill townhouse demonstrates how contemporary glazing can transform a listed property without compromising its heritage value. Through the careful specification of slim framed sliding doors, structural glass rooflights and bespoke pivot doors, the renovation delivers a bright, modern living environment while remaining respectful of the building's historic character.

Teachnical Details:

  • Minimum Sightlines: From 20mm at the interlock.
  • Frame Material: Thermally broken aluminium.
  • Glazing Configuration: High-performance double glazed units.
  • Thermal Performance: System U-values achievable from approximately 1.3 W/m²K (subject to glazing specification).
  • Solar Control: Specialist solar control glazing specified to minimise overheating while maximising daylight transmission.
  • Acoustic Performance: Acoustic laminated glazing available to reduce external noise intrusion, particularly beneficial in urban locations such as Notting Hill.
  • Weather Performance: Engineered for high levels of air permeability, water tightness and wind resistance.
  • Security: Multi-point locking mechanisms and security glazing options available to meet enhanced security requirements.
  • Rooflight Construction: Frameless structural glass rooflights with glass-to-glass silicone joints.
  • Rooflight Glazing: Toughened outer pane with laminated inner pane for safety and compliance.
  • Light Transmission: Large-format glazing maximises natural daylight penetration, reducing reliance on artificial lighting.
  • Ventilation: Combination of opening pivot and sliding door systems provides effective natural cross ventilation.
  • Threshold Design: Flush threshold detailing for seamless accessibility and uninterrupted internal-to-external transitions.
  • Powder Coating: Marine-grade polyester powder-coated aluminium finish in a bespoke RAL colour.
  • Durability: Corrosion-resistant aluminium framing designed for long-term performance and minimal maintenance.
  • Structural Performance: Structural glass elements engineered to accommodate imposed loads, thermal movement and building tolerances.
  • Energy Efficiency: High-performance glazing and thermally broken framing contribute to improved building envelope performance.
  • UV Protection: Solar-control coatings help reduce UV transmission, protecting internal finishes and furnishings.
  • Compliance: Designed and manufactured in accordance with relevant UK Building Regulations and glazing safety standards
  • RAL FINISH 7021
  • Glass spec - Low Iron Glass

Looking to Renovate a Listed Building?

IQ Glass has extensive experience designing and delivering bespoke glazing solutions for listed buildings, heritage properties and contemporary extensions. Our specialist team can help create sensitive architectural glazing designs that maximise natural light while preserving the integrity of your home.

Speak to our team today on 01494 722 880 to discuss your listed building renovation project.