Is a 0% Council Loan Really Free? A Refinancing Case Study

Mark and Gareth unpack a real case where a client with a 0% interest council loan wanted to keep it in place at all costs — and the numbers that revealed why paying it off actually left him better off.

The Setup: Free Money That Made a Development Possible

Local authorities across the country are putting significant funding into regenerating high streets and town centres, often through grants and interest-free loans — sometimes both together. In this case, the client owned a mixed-use property: commercial on the ground floor with three residential units above, in a small pedestrianised town centre. After an initial, more ambitious planning application was rejected, they secured consent for a smaller conversion and used a £70,000 interest-free council loan over five years to fund the works, sitting behind their existing first charge mortgage.

The works were completed, the property increased in value, and the client came back wanting to release some of that new equity to fund the next purchase. Understandably, his instinct was to keep the 0% loan exactly where it was — why would anyone choose to pay interest on money that currently costs nothing?

Why Two Charges Complicate a Refinance

The council's loan wasn't unsecured — it sat as a second charge behind the first charge mortgage, which is a very common condition attached to this kind of funding. Even grant money that doesn't need repaying often comes with a restriction on selling within a set period, policed through a charge or comfort charge on the title.

Refinancing with a second charge left in place immediately narrows the lender pool. Most lenders offering a first charge refinance want any existing second charge cleared as part of the transaction — very few are comfortable lending with a second charge remaining and their own security potentially complicated by it. On top of that, the council wanted a decent equity buffer behind their £70,000 loan (effectively wanting £100,000 worth of headroom), and the first charge lender wanted their own margin too. Against a property valued around £125,000, that squeeze meant a meaningfully reduced loan-to-value versus what would have been available with a clean first charge only.

Running the Actual Numbers

This is where the "free money" argument started to unravel. Keeping the second charge in place and refinancing only the first charge meant a lower loan-to-value (nowhere near 75%) and a first charge interest rate of around 10%, reflecting the complexity for the lender. Clearing the £70,000 loan entirely opened up 75% loan-to-value at a rate closer to 6.5% — and allowed the client to raise £23,000 more than the second-charge scenario permitted.

The blended cost told the real story. Keeping the 0% loan in place and refinancing around it cost roughly £22,500 a year in interest on the first charge portion alone. Paying off the £70,000 loan and refinancing cleanly cost around £20,000 a year in total — £2,500 a year less, while raising £23,000 more. The 0% loan wasn't costing 0% once its knock-on effect on the whole refinancing package was factored in.

The Repayment Term Made the Decision Even Clearer

Beyond the headline numbers, the loan's own repayment term added further pressure. The council loan needed repaying within three years, which sat awkwardly against typical fixed mortgage terms of two or five years. Structuring around it would have meant either accepting a variable rate for a stretch (with all the exposure that brings) or taking a five-year fix and breaking it early to clear the loan — triggering early repayment charges either way. Every route built around keeping the 0% loan in place added cost or risk somewhere else.

Negotiating with the Council

Part of what made this work smoothly was negotiating directly with the council rather than accepting the first position offered. The council initially wanted their own independent valuation on top of the lender's valuation — a duplicate cost that would have added an unnecessary £1,500 to £2,500 for a separate commercial valuation. By speaking to the council directly and agreeing that both parties could rely on a single independent valuation, that cost was avoided entirely.

It's worth noting councils aren't always as commercially minded or decisive as private lenders — even helpful individual contacts within a council aren't necessarily the ultimate decision-makers, and the process can be slower and less clear-cut than dealing with a conventional lender. Understanding the loan terms in detail from the outset, including any restrictions, breach conditions and penalties, puts you in a stronger negotiating position when the time comes to refinance or sell.