Our first campervan started life as a minibus.

Back in 2008 we bought an old 1993 Ford Transit minibus for £300. It had rust in the usual places, an automatic gearbox that would not get past second gear and absolutely no guarantee that I had made a sensible decision.

I then spent roughly the next year turning it into a campervan. The whole project eventually cost us just over £750 including the vehicle, and that old minibus became the basis of this entire website.

I still think a minibus can be a good starting point. Ours gave us windows and a usable interior for very little money, but it also came with rust and mechanical trouble. Those are the trade-offs I would look for before buying another one.

Why a minibus can make a brilliant campervan

The obvious advantage is that quite a lot of the expensive cutting has already been done for you.

A minibus normally has plenty of windows, a lined interior, passenger doors and a decent amount of headroom. Depending on the vehicle, you may also inherit interior lighting, heating ducts and useful trim that would otherwise have to be added during a conversion.

You also get a very good idea of what the finished living space will feel like before you start. Step inside and you can immediately see the available height, light and floor area.

For somebody who is nervous about cutting big holes into a panel van for windows, that is quite attractive.

But the things a minibus already has are not always the things you would have chosen yourself.

The windows are both an advantage and a disadvantage

Lots of glass makes a minibus feel bright and spacious. It also gives you lots of cold surfaces in winter, lots of solar gain in summer and fewer solid walls to put cupboards against.

That was not enough to put me off our Transit, but it does affect the design.

Before buying a minibus, imagine where the bed, kitchen, storage and toilet will actually go. A huge window looks lovely until you realise it is exactly where you wanted a tall cupboard.

Privacy needs thinking about too. Curtains are fairly easy to make and were the solution we used. Our DIY campervan curtains guide shows a simple low-cost approach.

All that glass also means insulation has to be realistic. You can insulate the roof, floor and solid body panels very well, but the windows will still behave like windows. Good curtains, thermal screens and sensible ventilation become more important.

Seats and seat rails can be more work than you expect

The first obvious job in many minibus conversions is removing rows of passenger seats.

Do not assume that leaves you with a nice flat empty floor. Some minibuses have substantial seat rails, brackets, heating ducts or raised sections underneath them. They can be heavy and awkward, and they may influence how you build the new floor.

If you intend to retain any seats for passengers while travelling, that becomes a different matter. A belted travelling seat and its mountings are safety-critical parts of the vehicle; do not treat them like ordinary campervan furniture or alter them simply to make the bed layout easier.

For non-travelling seating, our original campervan seating and pullout-bed build shows how I approached the living-area seats in our Transit.

Check the plated weight before you buy

This is one of the biggest differences between shopping for an ordinary van and shopping for a minibus.

Many larger minibuses have a maximum authorised mass above 3,500kg. That can be useful because it gives you plenty of payload for a conversion, but it may also mean you need different driving-licence entitlement.

There are actually two licence questions. First, can you legally drive the vehicle home while it is still a minibus? A vehicle with more than eight passenger seats can fall into minibus D1 rules, and the limited category B exemptions are aimed at specific non-commercial social use. Check the current GOV.UK minibus guidance before collecting or using an unconverted minibus.

Second, what will the finished camper weigh? For a finished motorhome between 3.5 and 7.5 tonnes MAM, current GOV.UK motorhome licence guidance says you need category C1. Above 7.5 tonnes, category C is required.

So check the vehicle’s plated MAM and your own licence before buying. Do not assume that removing the passenger seats automatically settles the licence question.

If you are thinking about reducing the plated weight to 3,500kg, make sure the finished camper will still have enough payload for people, water, fuel, gas, batteries, food and everything else you plan to carry. A conversion that is legal on paper but has virtually no usable payload is no bargain.

Buy the vehicle first and the conversion project second

This is something I learned the entertaining way with our £300 Transit.

The campervan layout can be changed. Mechanical condition is much harder to wish away.

Our minibus had an automatic gearbox fault when I bought it. It would not get past second gear. I knew that before buying it, but even so it was a gamble.

With any old minibus I would pay close attention to corrosion, service history, brakes, tyres, suspension, warning lights, clutch or automatic gearbox behaviour and signs that the vehicle has spent years doing short stop-start journeys.

A cheap base vehicle can still be excellent value, but only if you understand why it is cheap.

Layout planning is different in a minibus

With a panel van you normally decide where the windows will go after you have a rough layout. With a minibus, the windows and passenger doors are already there, so the process works the other way round.

Start with the fixed features you cannot easily move: wheel arches, doors, windows, cab seats and any structural sections. Then work out where the bed, kitchen and storage can fit around them.

Our campervan conversion ideas page is a useful starting point before you commit to a layout.

I would also decide very early how many travelling seats you actually need. Keeping unnecessary passenger seats can make the layout much harder; removing every seat without first deciding whether you need safe passenger travel can create the opposite problem.

Think about heating, insulation and condensation together

A minibus with lots of glazing can be fantastic on a bright day and noticeably harder to keep comfortable on a cold night.

Insulate the parts of the shell you can, but accept that the windows remain a major part of the thermal performance. Good curtains or insulated screens help, and proper ventilation is still needed because covering cold windows does not remove the moisture produced by sleeping and cooking.

If you use the van through winter, our campervan condensation guide and roof-fan and ventilation guide are worth reading alongside the build.

Electrics are no different just because it started life as a minibus

Once the passenger equipment is out, the campervan electrical system still needs to be designed around what you actually intend to use.

Do not assume that old minibus wiring, interior lighting circuits or redundant passenger equipment automatically give you a suitable camper electrical system. Work out the loads you want, how you will charge the leisure supply and whether you need solar, hook-up or a portable power station.

Our campervan electrics guide covers the conventional leisure-battery route.

What happens to the V5C after conversion?

This subject generates a lot of confusing advice because people mix together body type, licence categories, taxation, insurance and the physical conversion itself.

The useful bit is simpler.

Current DVLA guidance specifically lists minibus as one of the existing body types that can be considered for a change to motor caravan. To get that body description, the finished vehicle has to meet the required internal features and also look externally like a motor caravan in traffic.

DVLA also says that the body-type description itself does not decide insurance category, speed limits or other legal requirements. A converted vehicle can still be used as a motor caravan even if the V5C body type is not changed to “motor caravan”, provided the vehicle meets the required internal features.

You do, however, need to tell DVLA about relevant changes to the vehicle, including a change in seating capacity and changes to the weight of a larger vehicle where applicable.

The current official guidance is here: DVLA – converting a vehicle into a motor caravan.

Would I convert a minibus again?

Yes — if the right one came along.

What I would not do is buy one simply because it looks easier than starting with a panel van.

The windows, lining and passenger interior can save work, but they also dictate part of the layout. A heavier minibus can give you excellent payload, but the plated weight may affect who can drive it. Rows of seats come out easily enough in theory, but rails and brackets can leave plenty of work behind.

The big lesson from our Transit is that the base vehicle matters more than the label on the back door. If you find a mechanically sound minibus with the right size, weight and layout possibilities, it can make a superb campervan.

If you want to see exactly what happened when we did it, start with our Ford Transit campervan conversion. That is the original build diary, including the £300 minibus, the troublesome gearbox and the conversion that eventually became DIYCampervan.