Rated Excellent Online
58,000+ Homeowners Helped

Remortgage After Home Improvements

Making improvements to your home is one of the most effective ways to increase its value and improve your financial position.

£283 Avg. monthly saving
90+ UK lenders compared
4-8 weeks Typical completion
Start here

Why Remortgage After Making Home Improvements?

There are several compelling reasons to consider remortgaging after you have made improvements to your home. The most significant is the potential to benefit from an improved loan-to-value (LTV) ratio.

Better LTV ratio and lower rates

When you improve your home, its value typically increases. If your mortgage balance stays the same but your property is now worth more, your LTV ratio drops. Lenders offer their best rates to borrowers with lower LTV ratios, so home improvements can directly translate into cheaper monthly mortgage payments.

For example, if you owed 200,000 pounds on a property worth 250,000 pounds, your LTV would be 80 per cent. If your improvements increased the value to 300,000 pounds, your LTV would fall to approximately 67 per cent, potentially giving you access to significantly better deals.

Release equity for further improvements

If your home has increased in value, you may be able to release some of that equity when you remortgage. This could fund additional improvements, consolidate debts, or provide a financial cushion. Bear in mind that releasing equity increases your mortgage and your monthly payments.

Move to a better deal

Even if your home improvements have not dramatically changed your property value, remortgaging at the end of your current deal is often worthwhile. You avoid moving to the lender's standard variable rate, which is typically much higher than the rates available on new fixed or tracker deals.

Reflect your property's true value

If you took out your mortgage before completing improvements, your current deal may be based on the old, lower valuation. Remortgaging allows you to have the property revalued, ensuring your mortgage terms reflect its current worth.

Which Home Improvements Add the Most Value?

Not all home improvements add equal value to your property. Understanding which upgrades are most likely to increase your home's worth can help you prioritise projects and set realistic expectations when remortgaging.

High value improvements

Moderate value improvements

Lower value improvements

The key principle is that structural improvements that add usable living space tend to deliver the greatest return on investment.

What Lenders Look for When You Remortgage After Improvements

When you apply to remortgage following home improvements, lenders will assess several factors beyond the standard affordability and credit checks.

Professional valuation

The lender will arrange a valuation of your property, which will take into account any improvements you have made. The surveyor needs to see that the work has been completed to a good standard and that it genuinely adds value to the property. Partially completed improvements will generally not be valued until they are finished.

Building regulations and planning

For any structural work, the lender will expect to see evidence of compliance with building regulations and, where required, planning permission. This includes completion certificates from building control, party wall agreements if applicable, and any planning approvals. Missing documentation can cause significant delays or lead to the application being declined.

Quality of workmanship

The surveyor will assess the quality of the work carried out. Professional installations by reputable builders will be viewed more favourably than DIY work, particularly for structural, electrical, and plumbing work. Retaining certificates and guarantees from contractors is important.

Proportionality

Lenders consider whether the improvements are proportionate to the property and the local area. Over-improving a property beyond what the local market can support may mean the full cost of improvements is not reflected in the valuation. A five-bedroom extension on a two-bedroom terrace in an area of modest property values may not add value proportionate to its cost.

Structural integrity

Any improvements should not compromise the structural integrity of the original property. Removing load-bearing walls, for example, must be properly supported and signed off by a structural engineer. Evidence of this will be required during the remortgage process.

We've Helped Over 58,000 Homeowners
Save Money

Gary from London

"Easier Than Expected"

Gary, London
★★★★★
"I kept putting off remortgaging because I thought it would be a massive headache. Honestly, the whole thing was painless — filled in a quick form, got my options, and it was all sorted within weeks. Wish I'd done it sooner."
Katie from London

"Done In No Time"

Katie, London
★★★★★
"Our fixed rate was ending in a month and I was panicking about going onto the SVR. Managed to get everything sorted really quickly and we're now on a much better rate. Saving us about £200 a month."
Janet from Exeter

"So Much Better Off"

Janet, Exeter
★★★★★
"Was a bit nervous about switching as I'd been with the same lender for years. Turns out I was massively overpaying — got a much better deal and the whole process was far easier than I expected."
Lucy from Tamworth

"Happy Saving"

Lucy, Tamworth
★★★★★
"After having to pay a ridiculous amount due to the interest rate hike, we have now got a more suitable monthly payment, consolidated a loan and have money left for hopefully a loft conversion."

The Remortgage Process After Home Improvements

Remortgaging after home improvements follows the standard remortgage process, with a few additional considerations relating to the work you have carried out.

Step 1: Gather your documentation

Before you begin, collect all certificates and paperwork related to your home improvements. This includes building regulations completion certificates, planning permission documents, structural engineer reports, gas and electrical safety certificates, FENSA certificates for glazing, party wall agreements, and any warranties or guarantees from contractors.

Step 2: Research your property value

Get an idea of what your property might now be worth. Check recent sale prices of comparable properties in your area using the Land Registry or property portals. This helps you estimate your new LTV ratio and identify which rate bands you might qualify for.

Step 3: Compare remortgage deals

Use a comparison tool or work with a mortgage broker to find the best available deals for your estimated LTV. Consider factors beyond just the interest rate, including fees, early repayment charges, and the length of any fixed rate period.

Step 4: Apply and provide documentation

Submit your application along with the standard documentation (proof of income, bank statements, identification) and the additional certificates relating to your home improvements. The lender will use this information alongside their own valuation to make a decision.

Step 5: Valuation and legal process

The lender will arrange a valuation of your property, and your solicitor or conveyancer will handle the legal transfer of the mortgage. Once everything is approved, your new mortgage will replace the old one.

The entire process typically takes four to eight weeks, though this can vary depending on the complexity of the improvements and any documentation issues that arise.

Timing Your Remortgage After Home Improvements

Getting the timing right when remortgaging after home improvements can make a significant difference to the deal you are able to secure.

Wait until improvements are complete

Lenders will only value completed work. If your improvements are still in progress, it is best to wait until everything is finished before applying. This ensures the valuation reflects the full benefit of your investment.

Allow time for the market to recognise value

While a new extension or renovation adds immediate value, it can sometimes take a few months for comparable sales in the area to catch up. If you are not in a rush, waiting three to six months after completion can sometimes result in a more favourable valuation.

Coordinate with your current deal

If your current fixed rate or discount period is ending soon, this is an ideal time to remortgage, as you would need to switch deals anyway. Most lenders allow you to apply up to six months before your current deal expires, so you can begin the process well in advance.

Consider early repayment charges

If you are still within your current deal's early repayment charge (ERC) period, calculate whether the savings from remortgaging to a lower rate outweigh the cost of the ERC. In many cases, the increased equity from home improvements tips the balance in favour of switching, but it is worth running the numbers carefully.

Factor in seasonal considerations

While the mortgage market operates year-round, property valuations can be slightly affected by seasonal factors. Homes often present better in spring and summer, which may result in marginally higher valuations. However, the difference is usually small and should not be a primary factor in your timing decision.

Common Pitfalls to Avoid When Remortgaging After Improvements

Being aware of common mistakes can help you navigate the remortgage process more smoothly and avoid unnecessary complications.

Missing documentation

One of the most frequent problems is the absence of building regulations completion certificates or planning approvals. If you have had work done by contractors, make sure you receive all relevant certificates before making final payment. For older improvements, check whether indemnity insurance can cover missing paperwork.

Overestimating value added

It is natural to feel that your improvements are worth more than the market recognises. However, surveyors base their valuations on comparable evidence from the local market rather than the cost of the work. A 50,000-pound extension does not automatically add 50,000 pounds to your property value.

Unauthorised alterations

Work carried out without the necessary building regulations or planning approval can cause serious problems during a remortgage. If you discover unauthorised alterations, address them before applying. Options include retrospective approval, regularisation certificates, or indemnity insurance.

Ignoring the wider property condition

While your new extension may be immaculate, the surveyor will assess the entire property. Outstanding maintenance issues elsewhere in the home, such as damp, roof problems, or outdated electrics, could undermine the positive impact of your improvements.

Not shopping around

Some homeowners simply approach their existing lender for a new deal without comparing the wider market. While staying with your current lender can be convenient, you may miss out on significantly better rates from other providers. A whole-of-market broker can ensure you are getting the most competitive deal available.

Rushing the process

Taking the time to prepare properly, gather documentation, and compare options will almost always result in a better outcome than rushing into the first deal you find. A little patience can save you thousands of pounds over the term of your mortgage.

Important: Your home may be repossessed if you do not keep up repayments on your mortgage. There will be a fee for mortgage advice. The actual rate available will depend on your circumstances. Think carefully before securing other debts against your home.

Check Your Options in 60 Seconds

Free, no obligation, no impact on your credit score.

Check Your Savings Now →

Frequently Asked Questions

Yes, remortgaging after home improvements is very common. If your improvements have increased the value of your property, you may be able to access better interest rates due to an improved loan-to-value ratio. You can also potentially release some of the increased equity.

You can remortgage as soon as the improvements are fully completed. Lenders will not value work in progress, so it is important to wait until all building work is finished and you have obtained any required completion certificates from building control.

If your improvements required building regulations approval, you will need completion certificates. Most structural work, electrical installations, gas work, and changes to drainage require sign-off. If certificates are missing, your solicitor may be able to arrange indemnity insurance as an alternative.

Not necessarily. While most well-planned improvements add value, the amount depends on the type and quality of work, local market conditions, and whether the improvements are proportionate to the property. Over-improving beyond local market norms may not be fully reflected in the valuation.

Yes, if your improvements have increased your property value, you may be able to release some of the additional equity when remortgaging. This is subject to affordability checks and the lender's maximum LTV limits. Your broker can advise on how much equity you could potentially access.

You will need standard remortgage documentation such as proof of income and identification, plus building regulations completion certificates, planning permission documents, structural engineer reports, electrical and gas safety certificates, FENSA certificates for glazing, and any contractor warranties.

A loft conversion is one of the most value-adding improvements you can make, potentially adding 15 to 20 per cent to your property value. This can significantly improve your LTV ratio and give you access to better remortgage rates, making it very worthwhile in most cases.

It is possible, but you will need to address the missing permissions. Options include applying for retrospective planning permission, obtaining a certificate of lawfulness if the work was completed more than four years ago, or arranging indemnity insurance. A solicitor can advise on the best approach for your situation.

Most lenders will arrange a valuation, which may involve a physical survey visit, a drive-by inspection, or a desktop valuation using comparable data. If you have made significant structural improvements, a physical survey visit is more likely to capture the full value added.

A quality kitchen renovation can add around 5 to 10 per cent to your property value. Open-plan kitchen-diners and high-specification finishes tend to add the most. The value added also depends on the condition of the kitchen being replaced and the local property market.

It depends on your goals. If you need to release equity to fund improvements, you will need to remortgage first. If you want to benefit from the increased value, wait until after. Some homeowners remortgage twice: once to fund the work and again afterwards to secure a better rate based on the higher value.

DIY improvements can add value, but lenders and surveyors tend to view professional work more favourably, especially for structural, electrical, and plumbing tasks. If you have done DIY work, ensure it meets current standards and that any notifiable work has been properly inspected and certified.

Energy efficiency improvements can add value and improve your EPC rating. Some lenders offer preferential green mortgage products for energy-efficient homes. Improvements such as insulation, efficient boilers, double glazing, and solar panels can all contribute positively to your property valuation and mortgage options.

If the valuation comes in lower than expected, you have several options. You can proceed with the remortgage at the lower valuation, challenge the valuation with supporting evidence, apply to a different lender whose surveyor may take a different view, or wait for the local market to catch up. A broker can advise on the best course of action.

Typical remortgage costs include arrangement fees (which can range from zero to around 2,000 pounds), valuation fees (often free with many products), legal fees (which are frequently covered by the new lender), and any early repayment charges on your existing deal. Your broker can help you weigh these costs against the potential savings.