renovation Archives - Harris Calnan

Ealing Residential Redevelopment – Project Progress Update

Posted on ZXCZXC22 January 202623 January 2026 by FJDigital

Basement and Roof Milestones Mark Major Progress on this Complex Ealing Redevelopment

Works are continuing at pace on our major residential redevelopment project in Ealing, with significant milestones now reached both above and below ground.

This carefully planned scheme involves the full strip-out of the existing house and the construction of a new basement beneath the original footprint. Additionally, we will complete a rear extension, extensive structural alterations and a complete high-end internal fit out. Alongside the architectural transformation, the project has been designed with a strong focus on low-carbon performance and long-term energy efficiency.

Basement Structure Nearing Completion

One of the most complex phases of the build is now approaching completion, with the new basement structure largely formed beneath the existing property. We have carried out extensive structural works to safely create the additional level, providing valuable new living space while maintaining the integrity of the original house above.

A standout feature at this stage is the bespoke staircase which now links the basement seamlessly to the rest of the home. Designed as both a functional and architectural element, the staircase integrates seamlessly into the structure and plays a key role in how the new spaces connect and flow once the project is complete.

New Roof Structure In Place

Above ground, the project has reached another major milestone with the new roof structure now installed. The framing is complete and clearly defines the updated form of the house, marking a visible step forward in the transformation of the property.

With the roof structure in place, the building is beginning to take its final shape, allowing the project to move confidently into the next stages of construction and internal works.

With the roof structure now established, the building envelope is beginning to close in, providing a clear platform for the next phases of the programme. This stage allows greater coordination of follow-on trades and supports the smooth transition into weatherproofing, services installation and internal fit out as the project continues to progress.

Sustainable Systems and High-End Finish

Sustainability is a core part of this redevelopment. The house will benefit from a ground source heat pump and a low-carbon, high-efficiency design approach throughout. This will support long-term energy performance without compromising on comfort or quality.

As the structural phases conclude, focus will continue to shift towards the high-end fit out, where detailing, materials and craftsmanship will define the finished home.

Collaborative Delivery

This project is being delivered in collaboration with Beasley Dickson Architects, whose considered design has guided the transformation of the property. Additionally, Foster Structures have supported the complex structural requirements of both the basement and superstructure works.

To see more of our recently completed projects with a similar scope, please click here.

Why Choosing the Right Principal Contractor Defines Your Renovation Outcome

Posted on ZXCZXC5 December 20255 December 2025 by FJDigital

When you invest in a high end renovation you are not just choosing new materials or layouts, you are choosing the team who will bring your vision to life. The quality of your principal contractor defines how smoothly your build runs, how well the design is protected and how exceptional the final finish will be.

Understanding the Role of the Principal Contractor

A principal contractor is the central link between the design stage and the physical build. Their responsibility is to keep every moving part aligned so the project progresses with confidence and clarity. For homeowners this often means far more than people realise.

A strong principal contractor will:

Coordinate architects, designers, engineers and specialist trades
Manage timelines and budgets with accuracy and transparency
Oversee quality control at every phase of the build
Maintain safety, compliance and clear communication
Protect the design intent so the final home reflects the vision agreed at the outset
Anticipate challenges before they disrupt progress

For more information about a principal contractor’s responsibilities, click here.

How Harris Calnan Safeguard Quality

Every renovation carries its own challenges. At Harris Calnan we take pride in delivering work that balances architectural ambition with technical precision.

Our long-standing relationships with skilled subcontractors ensure consistency from the first day on site to the final handover. Our team understand the importance of detail whether that is structural accuracy, specialist materials or bespoke elements crafted to fit the design perfectly.

We keep clients informed through every stage of a project and work closely with architects and designers so the vision remains intact throughout the build.

For information about how we work, click here.

Examples of Coordinated Craftsmanship

Many of the projects we deliver involve complex reconfigurations, heritage structures and high performance building systems. In recent renovations we have managed everything from full structural changes to complete interior rebuilds where bespoke joinery, mechanical systems and refined finishes had to work together seamlessly.

Our role as principal contractor is to ensure that every contributor to the project is aligned and that the quality remains consistent from groundwork to decoration.

Advice for homeowners choosing a principal contractor

Selecting the right principal contractor can feel daunting but there are simple steps that help you make an informed choice.

You should consider:

How transparent the contractor is with programme and budget
Whether they can demonstrate quality through past work
How they communicate changes or technical issues
Their experience with the level of finish you expect
How early they recommend being involved in the design process

Early contractor involvement can resolve technical challenges before construction begins which improves efficiency and supports the intended design outcome.

Building Your Home With Confidence

A high end renovation demands a principal contractor who brings skill, care and coordination to every stage of the build. At Harris Calnan we combine technical expertise with a commitment to craftsmanship so each project is delivered to the standard clients expect.

If you are planning a renovation and would like to discuss how our team can support your vision we would be pleased to hear from you.

Project Walkthrough: St John’s Wood, Low Carbon Renovation

Posted on ZXCZXC3 October 20253 October 2025 by FJDigital

We are pleased to share a video walkthrough of the early stages of our latest St John’s Wood renovation, delivered in collaboration with Architecture for London. Click on the video to learn more about this fantastic project.

The walkthrough shows the substantial temporary works now in place. We’ve installed steels and supports to extend the ground floor and secure the structure. This careful preparation allows excavation of the new basement to begin safely and efficiently.

This renovation will transform the existing house with a full strip out, a lowered and extended basement, and a high end fit out. Every stage of the build is guided by a low carbon, high efficiency approach, ensuring the finished home will be both elegant and sustainable.

Although the project is still at an early stage, the walkthrough highlights the scale of the work involved and the precision required. It offers an inside look at how complex residential projects are carefully managed from the very start.

We will continue to share updates as the project develops, giving further insight into each stage of this St John’s Wood renovation.

To see some of our finished finished projects, click here.

foundation works for substantial basement structure

Collaboration at the Heart of Tottenham’s Heritage Restoration

Posted on ZXCZXC9 September 20259 September 2025 by FJDigital

At Tottenham High Road, our heritage restoration of the Grade II* listed buildings continues to progress with care and precision. These historic properties, dating back to 1725, demand not only technical expertise but also collaboration across multiple disciplines.

Specialists work together at every stage of this project to ensure the right balance between restoration and modern use.. From heritage conservation experts to the architects leading the design, each partner plays a crucial role in safeguarding the history of these buildings while shaping their future.

In a recent walkthrough, conservation specialist Nathan Goss shared how every decision is taken with sensitivity to the fabric of the buildings. From carefully repairing historic lime plaster ceilings to reinstating centuries-old timber, his expertise ensures that original details are preserved wherever possible.

The architectural team, F3 Architects, also highlighted the delicate balance required to merge historic character with contemporary interventions. With new basement spaces and a planned ground floor extension set to introduce a café and gallery, their design approach respects the heritage context while preparing the buildings for new community use.

By working closely together, the project team is ensuring that the historic significance of these landmark properties is not only protected but enhanced for future generations.

To learn more about this fantastic heritage restoration project, click here.

Luxury Residential Transformation, Ealing

Posted on ZXCZXC28 August 202528 August 2025 by FJDigital

At Harris Calnan, we are currently delivering a full residential transformation of a private property on Carlton Road, Ealing, working closely with Beasley Dickson Architects and Foster Structures. This ambitious scheme brings together our expertise in complex construction with a strong design vision, creating a contemporary home finished to the highest specification.

The works include a complete strip-out of the existing house, the formation of a new basement beneath the original footprint, a rear extension, and a new roof structure with coverings. We will complete the property with high-end finished throughout, all designed with an emphasis on low-carbon, high-efficiency performance supported by a ground source heat pump.

On site, we are pleased to be collaborating with Malci Construction who are progressing the basement works, AGA Scaffolding who have delivered the elaborate temporary works, and Maralb Construction who have completed the roof strip ready for inspection. Recent site meetings with the wider project team have allowed us to review progress in detail and carefully coordinate the next stages of the build.

From light-filled new spaces to a bespoke basement designed for modern family life, the property will not only reflect architectural excellence but also provide a comfortable, sustainable and future-ready home for years to come.

This project is a prime example of how we bring together skilled craftsmanship, collaborative working, and sustainable design solutions. Once complete, this residential transformation will combine architectural elegance with modern energy-efficient performance, reflecting both the ambition of the client and the expertise of the team.

See the gallery below to see some of the work in progress and if you’d like to see more of our recently completed projects, click here.

Progress Update: High End Renovation, Islington

Posted on ZXCZXC8 August 20258 August 2025 by FJDigital

Work continues to move forward at pace on our high-end renovation and basement extension project in Islington, where we’re delivering a complete transformation at 6 Highbury Hill.

Designed in collaboration with Cousins & Cousins Architects, this project includes a full strip-out of the existing property, a lowered and extended basement, and a high-end fit-out throughout. With Stuart Eley as Quantity Surveyor and Constructure as structural engineers, the team is pushing ahead with both care and precision.

Following recent progress on the basement shell, our in-house team has worked closely with Newton Waterproofing to ensure a robust waterproofing system is in place, ready for the installation of a polished concrete floor by Lazenby.

Externally, we’re restoring the original façade using a careful blend of new and traditional techniques, while above, the new roof is progressing well under full temporary cover.

A recent walk-around with the client and our site manager Brian provided a chance to review the ongoing work across every level of the home. With refurbished internals taking shape and the project moving into the next phase, this one is shaping up to be a standout example of collaboration and craftsmanship.

Most recently, we’ve also had the pleasure of working alongside Capital Rewire and Ember Lighting, who are supporting the next stage of internal works. This follows a visit from Estimus London, who installed the new slimline double glazed timber sash windows, now in place across the rear elevation.

Check out some of fantastic work in progress shots below to see the size of the incredible new basement space. We look forward to sharing more as the project develops.

To see more of our most recent work, please see our news page, and for completed projects and other high end renovations, check them out here.

Project Showcase: Luxury Renovation

Posted on ZXCZXC23 July 202523 July 2025 by FJDigital

Carlton Hill: A Luxury Renovation in St John’s Wood

Harris Calnan is proud to unveil the completion of a landmark project in St John’s Wood, a large-scale luxury renovation and basement conversion that showcases the very best of high-end residential construction.

Working alongside M W Architects and The Millbridge Group, this exceptional transformation involved retaining the original façade while completely rebuilding the structure behind, including the addition of a newly constructed basement.

The result is a home that seamlessly balances timeless architectural character with contemporary luxury. From the carefully curated materials to the uncompromising level of craftsmanship throughout, every detail reflects the quality and precision that Harris Calnan is known for.

The original façade of this period property was sensitively retained, preserving its heritage presence, while the entire structure behind was meticulously rebuilt. A newly excavated basement was added to increase living space and functionality without compromising on proportion or flow.

Inside, the property reveals a sophisticated and carefully curated interior palette. The formal sitting room is a masterclass in balance; fluted joinery and integrated lighting frame the bespoke marble fireplace, while soft furnishings in muted tones bring warmth and texture. Full-height Crittall-style doors lead from the hallway into the space, maintaining an open feel while providing elegant separation.

Carlton Hill reflects the collaborative expertise of an exceptional team, including those mentioned above but also Pringuer James, Blackburn & Co, Malci Construction, Maralb Construction, Haddonstone Ltd, Marble Bros, The Blacksmiths Shop, Calin Metals, CMD Bespoke, LDN Leadwork, Glazing Vision, VELUX, IQ Glass, Perla Windows, Domus Tiles, Salisbury Joinery and the Norden Group.