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A New Approach to Improving Energy Efficiency in Listed Properties?
The rules surrounding alterations to listed properties have long presented a difficult balancing act. On the one hand, we rightly want to protect the historic character and fabric of our older properties. On the other, those properties still have to function as homes in the 21st century. However, that balance may now be beginning to shift. I've written about this shift in direction in a previous post when Historic England released its advice notice on energy and carbon effici
Iain Collins
Oct 64 min read


Timber Windows in Listed Buildings: Why Repair Is Often Better Than Replacement
Owners of listed properties are frequently told that their timber windows need replacing. Rotten sills, peeling paint, or draughty frames can make original windows appear beyond saving. However, in many cases repairing timber windows in listed buildings is not only possible, but preferable. Across West Sussex, where historic cottages, Georgian houses and timber-framed properties are common, original windows form an important part of a building’s historic character. Conservati
Iain Collins
Mar 83 min read


'Worm Casts' in Historic Lime Render
My local church, St Mary’s, has stood at the heart of Billingshurst for over 900 years. With its soaring tower, graceful stone arches, flagstone floor, and stained glass windows, it’s a striking example of English ecclesiastical architecture — and a truly atmospheric place to visit. But it’s not just the grandeur inside that tells a story. Walking around the church’s exterior, you’ll notice areas of beautiful pink lime mortar, studded with flint, shell, and local stone. Look
Iain Collins
Jul 21, 20252 min read


A Visit to St. Botolph’s Church
A Reminder of Why Building Conservation Matters I recently had the opportunity to visit St. Botolph's Church in Hardham – a quiet, unassuming building nestled in the countryside, and home to one of the most complete sets of early medieval wall paintings in England. St. Botolph's Church - home to the earliest set of complete wall painting in England Walking into the church is like stepping back nearly a thousand years. The frescoes, dating from around 1100 AD, cover the nave w
Iain Collins
Jul 16, 20252 min read


A Visit to Keymer: Keeping Heritage Roofing Alive
Handmade clay tile producers are helping to keep our listed property roofing heritage alive.
Iain Collins
Mar 29, 20253 min read


Listed Property Show 2025
I attended The Listed Property Show recently, which offers a pretty comprehensive programme designed for owners, professionals, and...
Iain Collins
Feb 7, 20252 min read


The Environmental Impact of Polypropylene Fibre in Lime Plaster
When it comes to heritage building materials, lime plaster is often favoured due to its breathability, durability, and low carbon...
Iain Collins
Oct 29, 20244 min read


Regularly Maintaining and Repairing your Listed Property
Management and regular maintenance of your listed property reduces the need for infrequent, but potentially much larger repairs.
Iain Collins
Oct 15, 20242 min read


Listed Building Consent for Repairs
If you're planning repairs to a listed building, it's important to establish whether Listed Building Consent (LBC) is required before work begins. Consent is generally needed for alterations, extensions or demolition that affect the building's special architectural or historic interest. Routine maintenance and genuine like-for-like repairs will often not require consent, provided they do not affect the building's special interest. However, the distinction between a repair and
Iain Collins
Aug 9, 20241 min read


Double Glazing in Listed Buildings: What Does the Guidance Say?
Can double glazing be installed in a listed building? It's a question frequently asked by owners looking to improve the energy efficiency and comfort of their homes without compromising their historic character. Historic England's guidance on energy and carbon efficiency in historic buildings provides a useful framework for considering improvements such as double glazing, while recognising the importance of preserving the architectural and historic significance of older prope
Iain Collins
Aug 8, 20243 min read


Squirrel! Unusual Lead Repairs on a Listed Property
I visited a beautiful listed property to look at making repairs to a roof balcony, which is leaking into the room below. The balcony...
Iain Collins
Jul 23, 20241 min read


Colour Matching Lime Mortar for Historic Masonry
Matching the colour of new lime mortar to existing historic mortar can be an important part of achieving a sympathetic repair. The level of accuracy required depends on the significance of the building and how closely the repair needs to replicate the original. For particularly important properties, such as Grade I listed buildings, professional analysis may be appropriate to identify the original aggregates (sands) and their proportions, allowing a replacement mortar to be p
Iain Collins
Jul 16, 20243 min read


Leaking Gable Repair on a Listed Building
I recently completed a repair to the gable end of a beautiful timber-framed listed property near Pulborough, where water was finding its way into the building through the exposed brickwork and around the end of an oak roof plate. The problem had manifested itself as damp on an internal wall in the stairwell. Previous attempts to resolve the leak had involved creating a rubble infill, originally bedded in lime mortar but subsequently repointed in cement. There were also traces
Iain Collins
Jul 12, 20241 min read


A Visit to Lambs Brickworks: Traditional Handmade Bricks
I recently visited Lambs Brickworks at Pitsham, near Midhurst, to collect some special bricks for an upcoming project. I was looking for handmade plinth bricks – a less common brick shape with a chamfered edge that allows rainwater to run off where the thickness of a wall changes. Finding suitable bricks for traditional building repairs isn't always straightforward. I had originally tried to source reclaimed examples, but they're as rare as hens' teeth. So, rather than compro
Iain Collins
Jul 3, 20244 min read


Where do you Keep the Damp in your Listed Property?
Many listed property owners will be able to tell you immediately where they keep theirs. Under the stairs, in the corner of the living...
Iain Collins
Jul 1, 20245 min read


Wattle and Daub
Quite a few of the houses I see have some element of wattle and daub construction within them and so I thought I'd write a little bit...
Iain Collins
Jul 1, 20242 min read


Not All Lime Mortar is Equal
Lime mortar has been used as a building material for thousands of years and is found in most listed properties in the UK. There is plenty...
Iain Collins
Jul 1, 20243 min read


Keeping Warm in a Period Property
Improving thermal efficiency in heritage properties is a very big topic and one which is of particular interest to listed property...
Iain Collins
Jul 1, 20244 min read


A World Apart
Having spent most of my working life behind a desk, I decided I needed a change.
Iain Collins
Jun 30, 20242 min read
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