Can You Alter the Internal Layout of a Grade II Listed Building?

Can You Alter the Inside of a Listed Building?

Yes. Historic homes can work with a modern way of life and open-plan living can often be achieved, but carefully and sympathetically.

The internal layout of residential buildings has changed significantly since the majority of listed buildings were constructed. Over centuries we have swung from single open rooms to smaller more private spaces and, more recently, back to informal open plan living. 

As heritage architects we are often called to consider bringing enhanced fluidity between the key zones  of the kitchen, living room, and garden. 

To modify a listed building, you need listed building consent, this consent is required for internal and external changes as well as within the curtilage of the grounds.

James Clague, Managing Director of James Clague Architects, runs through common questions about listed building consent for structural alterations.

Which Walls Can Be Removed In A Listed Building?

In order to demolish a load-bearing wall, you will of course need professional advice. However, in terms of heritage issues, taking down non-structural walls isn’t straightforward.

Removing a wall can change the historic layout of a listing building and erode its character. Think of walls which feature Mediaeval stone or original timber panelling. There can also be issues with disruption to the decorations and fittings of the rooms you are joining.

In order to gain listed building consent, you will need to justify the removal of the wall. Seek advice from an architect with experience in listed building alterations. They will be able to evaluate both the historic fabric of the building and the structural significance of the wall. If removal is feasible, they will be able to compile an application which describes acceptable reasons for the removal. These include practical advantages, such as better ventilation and improved fluidity, which positively affect the energy efficiency of the building - heat travels better through a bigger room.

Usually, there aren’t practical drawbacks to joining two rooms. What’s crucial is that the historic footprint is retained. The character cannot be changed beyond the scope of what’s acceptable according to national and local policy guidance and Historic England.

The higher the significance of the building, the harder it will be to obtain listed building consent. Later additions from the 1950s onwards are fairly easy to remove, as they’re not original. However, if the rooms you are joining have existing damp issues, you will need to fix these first.

In order to improve your chances of success, at James Clague Architects, we usually recommend applying for removing a portion of a single wall that is about a double-door width maximum. Typically, this doesn’t create any structural problems, nor does it cause any disruption to the decorations of the rooms you are joining.

If removing a wall isn’t possible, an extension may achieve the same result. Read our guide to extending a Grade II listed building.

Can You Move Or Add A Kitchen Or Bathroom To A  Listed Building?

In theory, yes. Rerouting the plumbing and making changes to the boiler system don’t usually pose problems. However, the plan cannot alter the character of the building. For example, building a box bathroom next to a dining room with high status features isn’t possible. 

If you’re planning a wider refurbishment project, read our guide to renovating a listed building.

How do you Creating An Open Plan Living Space In A Listed Building:?

First, create a sketch of your desired layout using Pinterest, Instagram, or a mood-board. Take this to an architect and seek professional advice. They will then need to carry out a site inspection to verify the viability of the project.

It’s a case by case analysis: each building needs to be considered separately, as the historic fabric varies significantly. You might be able to remove a significant portion of a wall, a very small section, or none at all.

At James Clague, we ensure that our projects comply with national legislation and gain listed building consent. We carry out a thorough site inspection, so we can create a report on the architectural features which need to be preserved. We use this to compile a heritage statement and an analysis of the building’s significance, which help us justify the removal of architectural features to the local planning authority.

The consultation process begins with a detailed inspection and survey and is followed by an in-depth report on findings. If removing a wall is not possible, we make a number of alternative suggestions, such as building an extension. 

How Long Does It Take To Get Listed Building Consent?

Overall, about four months. From the date of the site visit to that on which we submit the planning can take anywhere between one and three months. Determination takes up to eight weeks.

How Do You Find Out What Is Possible?

When it comes to altering a listed building, professional advice can save considerable time and expense. Listed building consent is often required for internal alterations, and carrying out unauthorised work can have legal consequences.

You can speak directly to your local conservation officer if you have a specific minor alteration in mind. However, if you’re still exploring your options, a heritage specialist can help you understand what is likely to be approved  by carrying out a heritage assessment before you invest in designs, surveys, or applications.

What Does A Heritage Assessment Include?

A heritage assessment looks at the building’s history, significance, original layout, and surviving historic features. It identifies which elements contribute most to the building’s special interest and which areas may offer more flexibility for change.

The assessment also considers previous alterations, the condition of the building, and the likely impact of the proposed works. This information helps shape a scheme that balances modern living requirements with the need to preserve historic fabric.

Heritage assessments are also useful when purchasing a listed property. Read our guide to buying a listed building.

How We Can Help

If you’re considering altering the internal layout of a listed building, an early consultation can help you understand what is possible before committing to a design.

Our team begins with a detailed inspection of the building and an assessment of its significance. We then identify the alterations most likely to gain approval and, where necessary, recommend alternative solutions. For example, if removing a wall is unlikely to be supported, an extension or a different internal layout may achieve the same outcome.

James Clague Architects works with homeowners across Kent, Sussex, Surrey, and the South East on listed buildings, heritage assets, and sensitive planning projects. To discuss your property, book an initial consultation here or call 01227 649073.