- Planning authority
- Horsham District Council
- Postcodes
- RH12
- Noon sun, 21 March
- About 39°
- Shadow from a 5 m eaves line
- About 6.2 m
- Planning plan
- Local Plan
- County
- West Sussex
How it plays out in Horsham
When Horsham District Council looks at a tandem plot, the first questions are usually about the drive: how close cars come to the front house’s windows, whether headlights will sweep across rooms at night, and whether the junction with the road is safe. Planning policy in the council’s Local Plan sets the tests, and design guidance fills in the detail.
Daylight matters too. With the late-March sun climbing to just 39° at midday in Horsham, an eaves line 5 metres up on the new home would throw shade roughly 6.2 m across the ground beside it. Keeping the new home low or well back protects the gardens on both sides.
The next steps, locally
The first step is a free, no-obligation appraisal. For a Horsham plot with a difficult way in, that means checking who owns each part of the route, what rights exist and how wide it is on the ground. If a neighbour or a ransom strip is involved, we agree an approach with you before contacting anyone.
Free plot appraisal
We start with the access, not the plot: title plans, rights of way, the width on the ground and the route to the road. It’s a desktop check and a conversation, with a site visit if it looks viable, at no cost.
Secure the way in
If a right of way needs widening, a strip needs buying or a neighbour needs to come in, we agree the approach with you and negotiate it, so the terms are settled before planning money is spent.
Planning application
We design a layout that answers the access, privacy and neighbour questions councils ask about tandem and backland plots, then apply. The council consults neighbours and decides, and the decision is always the council’s.
Sale or build
Depending on the route you chose, the sale completes through a transfer of part, or you keep the land and we give a written quote for building the new home after design and survey.
Worth checking early
- Long or narrow drives can mean extra cost for sprinklers, passing places, lighting or a bin collection point.
- Planning permission gives no right to cross land you don’t own; the legal access has to be secured separately.
- Buying out a ransom strip or a neighbour’s land costs money and time, and the other owner can say no.
Horsham: questions to ask
Can I get planning permission in Horsham before the access is sorted?
You can apply for planning on land you don’t own, as long as the owners are formally notified. But permission doesn’t give a right to cross anyone’s land. Most of the time it makes sense to agree access terms first, so the permission can actually be used.
Will Horsham District Council accept a shared drive for a new home in Horsham?
It can, but shared drives are looked at closely. The council will consider the width, visibility at the road, the effect on the house beside the drive, and whether fire and bin access work. A drive with a clear gap from windows and screening alongside generally fares better.
How do I find out if a lane behind my Horsham home is a public road?
The highway authority keeps a list of streets maintained at public expense, and anyone can inspect it free of charge. If the lane isn’t on it, it’s probably private, and you’ll need to know who owns it and whether your title gives a vehicle right of way that would cover a new home.
Can I build behind my house in Horsham if the only way in is my drive?
Possibly. That would be a tandem layout, with the new home behind yours sharing your drive. Horsham District Council will look at the effect of cars passing your house, privacy, garden space and whether it suits the area. Fire and bin access also need checking. The decision is the council’s, and a good design improves the odds.
Other options in Horsham
- Combine gardens with your neighbours
- Build a home for family in your garden
- Garage courts and yards
- Bungalows on large plots
- Planning promotion for your garden plot
- Build a new home in your garden

