Extensions · Salisbury
House extensions in Salisbury
An extension in Salisbury needs a survey, drawings, planning or Building Regulations approval, structural calculations and the building work. We do all of it, so you only deal with us.
- ★ 5.0 on Google (15 reviews)
- Checkatrade 10/10 (20 reviews)
- We reply the same working day.

Houses in Salisbury and what they need
Salisbury's medieval centre, around the Cathedral and the Close, gives way to Victorian terraces in Fisherton, interwar semis along the Castle Road corridor, and modern estates at Old Sarum and Bishopdown. Salisbury falls under Wiltshire Council rather than Dorset, and we cover the city as part of our wider service area.
Victorian terraces in Fisherton and the city centre
Fisherton Street and the surrounding streets have long runs of Victorian terraced houses with narrow rear plots. Side-return extensions and single-storey rear additions work well here, creating a kitchen-diner without using up the garden. We design for the typical party wall configurations found in these terraces, including shared chimney breasts and staggered rear walls.
Castle Road and Harnham
The Castle Road corridor, Harnham and Churchfields have a mix of 1920s to 1960s semis and detached homes on wider plots. Two-storey extensions adding a bedroom above and living space below are common here. We design layouts that keep the established rooflines and setbacks while working within Permitted Development limits or under a Householder application.
Old Sarum and Bishopdown
Salisbury's newer developments at Old Sarum, Bishopdown and Hampton Park are built on regular plots with modern construction, and extensions here generally benefit from standard PD rights. We design additions that add a kitchen-diner or garden room flowing into the rear garden.

Planning permission for extensions in Salisbury
Salisbury falls under Wiltshire Council, a separate unitary authority from the Dorset councils that cover most of our service area. The planning process and policies are broadly similar, with local distinctions around the Cathedral Close, the city centre conservation area, and the proximity to Salisbury Plain.
How Wiltshire Council handles extension planning
Wiltshire Council processes Householder Planning Applications within the standard eight-week period. The application fee is set nationally and is the same at every council in England, and the Planning Portal lists the current fees. Salisbury's city centre conservation area restricts PD rights for properties within its boundary, and several streets are subject to Article 4 Directions that remove additional PD entitlements.
Restrictions near Salisbury Cathedral
The Cathedral Close is one of the most architecturally significant areas in England, and extensions to properties within or near the Close face close scrutiny. The wider city centre conservation area extends across much of the medieval street grid. We check your property against Wiltshire Council's conservation area maps and listed building register before recommending a design approach.
Why homeowners choose us
We combine design and construction experience, so the early layout discussion considers how a home could be altered as well as how it could look. Detailed scope, pricing and programme are agreed separately for each project.
Free
Free project review
Tell us what you want to do. We call you back the same working day to tell you what your project needs and whether it is worth doing. There is no cost and no obligation.
Clearer scope before work begins
We use the available drawings and project information to discuss the proposed work before a quote and contract are agreed.
One firm and one contract
You don't have to find and manage separate designers, engineers and builders.
You can stop after any step
The drawings are yours to use with any builder.
How it works
There are five steps. You can stop after any of them.
You can stop after any step. The drawings are yours, and you can use them with another builder.
We build in Poole, Bournemouth, Christchurch and about 20 miles around them. For homes further away, our remote layout service works anywhere in the UK, and we can price the work, prepare tender documents and vet local builders.
Step 1
Free project review
Send us a few details or call. We look at what you want to do and tell you what it will need and whether it is worth taking further.
Free
Step 2
Layout Ideas Pack
We draw your home as it is now and up to three ways it could work, then fine-tune your favourite with you on a video call. Done remotely from your Rightmove link, floor plan or sketch, or in person with a measured site survey and a 3D point cloud scan.
Remote or in person
Step 3
Cost estimate
Once you have a layout you like, we can explain the further work needed and quote any separately agreed service.
Quoted separately
Step 4
Drawings, approvals and engineering
Full drawings, structural calculations, and the planning and Building Regulations applications. The house is measured at this stage if it hasn't been already.
Priced after the estimate
Step 5
The build
Near Poole, we can prepare a quote and contract using the information available for the agreed scope. Changes, site conditions and client decisions can affect scope, cost or programme. Further away, we can prepare tender information and support the selection of local builders.
Quoted for the agreed scope
What our customers say
- ★ 5.0 on Google (15 reviews)
- Checkatrade 10/10 (20 reviews)
- We reply the same working day.
“…they can do everything from start to finish for you.”
“…carried out layout drawings for a very reasonable amount. Josh also gave us a budget price to carry out the works.”
“I couldn't recommend Josh enough! He has been absolutely fantastic, nothing was too much trouble, he was happy to bounce lots of ideas back and forth until we were happy. He is polite, friendly and professional in every aspect. I would definitely be using his services again in the future when needed.”
“Josh got the plans for our extension completed and submitted very quickly. We had a number of amendments and obstacles to overcome but nothing was too much trouble for him. A very professional and efficient service.”
Questions
Do you cover Salisbury even though it is in Wiltshire?
Yes. We work with Salisbury homeowners and regularly submit planning applications to Wiltshire Council. The free project review and Layout Ideas Pack are for Poole, Bournemouth, Christchurch and the area around them, so we check your postcode before booking.
Do I need planning permission for an extension in Salisbury?
Most extensions in Salisbury's suburban areas fall under standard Permitted Development. Properties within the city centre conservation area or near the Cathedral Close may need full planning permission. We check your property's constraints with Wiltshire Council before recommending a way forward.
How much do extension plans cost in Salisbury?
Start with a free project review. If it makes sense to go ahead, the next step is the Layout Ideas Pack, done remotely or in person.
Which council handles planning in Salisbury?
Wiltshire Council handles all planning applications for Salisbury. This is separate from the BCP and Dorset councils that cover most of our other service areas, but the process is essentially the same. The council charges an application fee, set nationally and revised each year, and the Planning Portal lists the current fees.

Tell us what you want to change
Send a few details and we will call you back the same working day to tell you what your project needs. There is no cost and no obligation.
We build in Poole, Bournemouth, Christchurch and about 20 miles around them.
Step 1 of 3
