Home Improvement

Loft Conversion Loan — Fixed Cost, Fast Decision

Converting your loft into a bedroom or home office can unlock serious value — but even a contribution toward the project needs funding. A Cash Train personal loan gives you up to £5,000 with fixed monthly repayments and no hidden fees.

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Unregulated lender • Apply online — decision in minutes • Subject to status and affordability

Warning: Late repayment can cause you serious money problems. For help, go to moneyhelper.org.uk

Typical project costs

What does a loft conversion actually cost?

A full loft conversion in the UK typically runs between £20,000 and £60,000 depending on type and location. Most homeowners fund the bulk through savings or remortgage — but many need a short-term cash contribution for deposits, planning fees, or finishing costs. That is where a Cash Train loan fits.

Planning & surveys

£500–£2,500

Architect drawings, structural engineer sign-off, and planning application fees (if required). Often payable before any build work starts.

Rooflight / Velux conversion

£20,000–£30,000

The most affordable type. Adds windows to the existing roof slope without changing the roofline. Suits bedroom or study use.

Dormer conversion

£30,000–£45,000

Extends the roof outward to create a box-shaped structure with vertical walls — significantly more headroom and usable floor area.

Finishing & fit-out

£1,500–£5,000+

Flooring, plastering, decoration, built-in storage, and lighting once the structural shell is complete. Often where budgets overrun.

Figures are indicative UK market averages. Costs vary by location, conversion type, and specification. Always obtain at least three builder quotes. Subject to status and affordability.

Making the right decision

Is a personal loan the right way to fund a loft conversion?

A personal loan makes sense for a specific slice of loft conversion funding — not the entire build. Consider whether it fits your situation:

When a loan works well

You need to pay an initial deposit or architect fees before your main funding is in place
Your loft conversion is mostly funded but you are a few thousand short on finishing costs
You want to pay for planning surveys upfront to secure a builder quote quickly
You need to bridge a short gap between savings withdrawals and contractor payment dates

When a loan may not be suitable

You need to borrow the majority of the build cost — a secured loan or remortgage will almost always be cheaper for large sums
You are not confident your income will cover fixed monthly repayments during the build period
You have existing high-interest debt — paying that off first may be more financially efficient
The project is speculative and you may not proceed — taking on debt for a project that does not happen is costly

Alternatives to consider: Remortgage or further advance from your mortgage lender (lower rates for large sums), secured homeowner loan, government green improvement schemes, or staged builder payment plans. For free, impartial money advice visit moneyhelper.org.uk.

Simple process

How Cash Train works for loft conversion funding

Tell us your project

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Typical eligibility criteria

UK resident aged 18 or over
Regular income from employment, self-employment, or pension
Active UK bank account in your name
Loan purpose is lawful — home improvement qualifies
Affordability assessment passed at point of application

Meeting these criteria does not guarantee approval. All applications are assessed individually and are subject to status and affordability. Indicative only — final eligibility criteria confirmed at the point of application.

Common questions

Loft conversion loan FAQs

Adding a usable bedroom or office in the loft typically adds between 10% and 20% to a property's market value in the UK, according to estate agent surveys. However, value uplift depends on location, property type, and demand. A conversion that gives a two-bed house a third bedroom often has a strong return — particularly in cities where space is at a premium.

Many loft conversions fall under Permitted Development rights and do not require full planning permission — provided the conversion does not exceed 40 cubic metres (terraced) or 50 cubic metres (detached/semi-detached) and does not alter the existing roof slope visible from the street. Always confirm with your local planning authority before work begins.

A standard Velux or rooflight conversion takes 4–6 weeks from start to completion. A dormer conversion typically takes 6–10 weeks. Mansard or hip-to-gable conversions involving significant structural work can take 10–14 weeks. Planning and design stages add further time before build commencement.

Yes — this is a common use case. Many homeowners use a personal loan to pay the builder's deposit or architect's fees while their main funding (savings, remortgage proceeds) is being arranged. Just make sure the monthly repayments fit comfortably within your budget before you commit.

A Velux (or rooflight) conversion installs windows flush with the existing roof slope and does not change the roofline. It is the cheapest option but gives less headroom. A dormer conversion adds a box-shaped structure projecting from the roof, creating full-height walls, more usable floor space, and standard-sized windows — at greater cost.

Ready to start your loft conversion?

Apply online today and get a fast decision — fixed monthly payments, no hidden fees. Fixed costs, fast decisions, and no hidden fees — up to £5,000 for your project contribution.

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Warning: Late repayment can cause you serious money problems. For help, go to moneyhelper.org.uk

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