- Planning authority
- North Hertfordshire District Council
- Postcodes
- SG8
- Noon sun, 21 March
- About 38°
- Shadow from a 5 m eaves line
- About 6.4 m
- Planning plan
- Local Plan
- County
- Hertfordshire
The local picture in Royston
North Hertfordshire District Council will judge a family home against the council’s Local Plan and any guidance it has adopted on garden development and annexes. Some councils spell out how closely an annexe must relate to the main house, such as sharing the drive, garden or parking, and what turns a building into a separate home instead. We read the current policies for your address before design starts, because a scheme drawn to suit the wrong test wastes time and money. Where the position is unclear, the council’s pre-application advice can be worth its fee.
What happens next in Royston
From first call to keys, a family home in Royston follows a clear order. Free appraisal and site visit; measured survey and design around the person moving in; a planning application to North Hertfordshire District Council; approval under the Building Regulations and any CIL exemption claimed before work starts; then the build, with you living next door throughout. You receive a written quote after design and survey, and we keep the household updated at each stage.
Free plot appraisal
We look at your plot, access and the planning picture from the desk, talk through who will live in the new home, and visit if it looks viable. There’s no cost and no obligation.
Annexe or separate home
We set out both routes for your plot, covering what each means for planning, ownership, council tax, CIL and VAT, so you can decide with your family and advisers before design starts.
Planning and approvals
We prepare and submit the planning application and manage it with the council, which makes the decision. Before work starts, approval under the Building Regulations is in place and any CIL exemption has been claimed.
Build and handover
We build while you carry on living next door, with access, deliveries and working hours agreed up front. At handover you get the completion certificate and the paperwork you’ll need for council tax, lenders and any VAT claim.
Worth checking early
- Family plans change: agree ownership, costs and what happens if circumstances change in writing, with a solicitor.
- VAT savings available on a separate dwelling often don’t apply to an annexe; take advice from a tax adviser before choosing.
- CIL exemptions are lost if work starts before the claim is made, and can be withdrawn if the home is sold or let within three years.
Your questions, answered for Royston
Can I reclaim VAT on a family annexe in Royston?
Often not. HMRC’s guidance gives an annexe that can’t be used or sold separately from the main house as an example of work that can’t be zero-rated, and the DIY housebuilders refund scheme asks the same question. A separate dwelling is usually treated differently. Take advice from a tax adviser before you settle the planning route, because the wording of the permission matters.
Do I need planning permission for a granny annexe in Royston?
Yes, almost always for a detached annexe with its own kitchen, bathroom and bedroom. North Hertfordshire District Council will treat it as accommodation linked to your home and will usually add a condition so it can’t be let or sold separately. A garden building used only as a home office or gym is a different matter, but sleeping and cooking take it beyond those allowances.
Will an annexe in Royston put up my council tax?
It might. Annexes can be banded separately, but exemptions exist for annexes lived in by certain dependent relatives, and in some cases a discount applies where family live there or the annexe is used as part of the main home. Who qualifies depends on the relative’s circumstances and how the annexe is used. North Hertfordshire District Council’s council tax team can tell you how the rules apply to your household.
Can I build a separate house in my Royston garden for my son or daughter?
Possibly, if the plot can work as a home in its own right. North Hertfordshire District Council will look at access, parking, garden space for both houses, privacy and the character of the street, as it would for any new house. If permission is granted, the plot can be transferred to your child with its own title, with your lender’s consent if the house is mortgaged.
Other options in Royston
- Garden plot option agreement
- Joint venture on your garden plot
- Sell part of your garden
- Plot feasibility and design
- Bungalows on large plots
- Planning permission for a garden plot

