What You Must Know Before Buying a House Requiring Renovation
03, Jul, 2025
Planning to buy a house requiring renovation is a smart move in 2025, especially if you are a first-time buyer, investor, landlord, or homeowner. A property that needs renovation can be turned into a beautiful architectural space when you have the right strategy to take it further. However, it's essential to keep a close eye on what is involved in the process.
In this guide, we’ll walk you through everything you need to know about houses requiring renovation in the UK, from what to look for and renovation costs to planning, budgeting, and where Denham Crescent can help.
Why Consider a House Requiring Renovation?
Buyers are often attracted due to cost when they hear about the low cost of these projects that require renovation. However, the lower price is due to the outdated property or the standards of living that will require some work to be done first. Why do people tend towards them?
With the right improvements, you can increase the property’s resale or rental value.
You can design the space around your personal or tenant needs.
In areas like South West London, buying a ‘fixer-upper’ may be the only way to enter the market.
Fewer buyers are willing to take on renovation work, giving you a better chance to secure the deal.
Types of Renovation Properties to Look For
Not every house will require a renovation; some will be ready for living with minor adjustments or a fresh coat of paint, while others will need extensive renovation work. Let’s see some of the most widely used types:
Updating kitchens, bathrooms, flooring, paintwork, and replacing windows.
Rewiring, new plumbing systems, heating installation, and room layout changes.
Structural changes, house extensions, loft conversions, or properties that are not mortgageable until improved.
You need to have a clear picture in your mind about the renovation you require before considering a purchase. You can always speak to our agents at Denham Crescent for advice.
Red Flags You Need To Avoid
When buying a house requiring renovation, a low price is tempting, but you also need to watch out for the
Damp, rot, or mould
Subsidence or cracks in the structure
Outdated electrics and plumbing
Asbestos in ceilings, walls, or old insulation
Roof damage or leaks
Poor energy efficiency (check the EPC rating)
You should always consult a qualified expert who can help you notice any red flags.
How Much Does Renovating a House Cost in the UK (2025)?
Renovation costs are based on the actual condition, size, and location of the property. To give you some estimates about pricing:
Light renovation will require approximately £15,000 – £30,000
Medium renovation will require approximately £30,000 – £60,000
Complete renovation will require approximately £60,000 – £120,000+
Note: Always keep in mind any additional costs that may arise, such as planning permission, surveys, council fees, or any other unforeseen expenses.
Do You Need Planning Permission for Renovations?
No! However, some renovation works, such as replacing windows or installing a new kitchen, fall under permitted development. You need planning permission if:
You are modifying the structure (e.g., adding extensions, dormers, or structural walls).
The house is listed or in a conservation area.
You are converting the property to an HMO (House in Multiple Occupation).
You want to build above a certain height or towards a boundary.
Even where permission isn’t needed, building regulations still apply, so it’s wise to ask your agent to check with the local council and work out the planning structure.
Financing a House Requiring Renovation
Some lenders are cautious with houses needing work, especially if they’re ‘uninhabitable’. Your financing options include:
Standard mortgage: Possible if the property is livable.
Renovation mortgage: Funds are released in stages as work is completed.
Bridging loan: Short-term finance for properties needing fast purchases or major works.
Cash buyers: Ideal for auction properties or those without bathrooms or kitchens.
Denham Crescent can advise you on renovation projects and suggest the best option based on your circumstances.
Who Should Buy a House Requiring Renovation?
A house requiring renovation may be right for you if:
You're happy to wait and plan for the long term.
You want to live in a particular area but can’t afford move-in-ready homes.
You’re an investor looking to flip or let out.
You enjoy design and project management.
You’re financially prepared for unexpected costs.
How Denham Crescent Can Help You Renovate Confidently
At Denham Crescent, we help buyers transform old homes into beautifully finished, liveable spaces, whether they need a full-scale renovation, kitchen extension, loft conversion, or a simple reconfiguration. How we do it:
We’ll visit your renovation property to assess what's needed, provide expert advice, and estimate the costs.
Our team includes designers and architects who will help you unlock the full potential of your home, with layouts, drawings, and planning support.
We coordinate trades, schedule work, and ensure everything stays on time and within budget, so you don’t have to.
All renovations are carried out to meet current building regulations, fire safety, and council planning policies.
We treat your renovation as if it were our own. From structural repairs to interior finishes, we take care of the details.
Ready to Renovate?
If you’ve found a house requiring renovation or are exploring options in London and the surrounding areas, let Denham Crescent help turn your investment into profit.
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