Extension plans · Salisbury, Dorset
House Extension Plansin Salisbury
Extension design pack
Fixed price. 2-3 layout options. 48-hour delivery.
Based in Poole since 2017 · Covering Salisbury and the wider Dorset area
Extension types
Whatever your extension, we design it.
Single-storey extension
Rear or side extensions to add a kitchen, dining room, or living space. The most popular option.
Two-storey extension
Double the space with bedrooms above and living space below. Requires planning permission in most cases.
Internal reconfiguration
Move walls, open up rooms, and redesign your existing layout without extending the building footprint.
Cost estimator
Rates for Salisbury
6m × 4m = 24m²
Estimated cost in Salisbury
Excl. VAT (£10373 – £15272)
Local insight: Salisbury's conservation areas in the city centre increase costs due to material requirements. Properties outside designated areas are competitively priced.
Want a professional layout?
Upload your floor plan — 2–3 options in 48hrs
First room £29.99 · Additional rooms £19.99
From £29.99 →How it works
Three steps to your extension plan.
Share your space
Paste a Rightmove link or upload photos with rough measurements. Takes 60 seconds.
Receive your options
We draw 2-3 professional floor plan options and share them through your online portal within 48 hours.
Decide with confidence
Love it? We handle scanning, planning applications, and builder coordination. No obligation.
House Extensions in Salisbury: Cathedral City Design Expertise
Salisbury sits at the confluence of five rivers in Wiltshire, just across the county border from our Dorset base. The city's medieval centre — dominated by 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. Although Salisbury falls under Wiltshire Council rather than Dorset, our team covers the city as part of our 30-mile service radius from Poole.
Victorian Terraces in Fisherton and the City Centre
Fisherton Street and the surrounding residential streets contain long runs of Victorian terraced houses with narrow rear plots. Side-return extensions and single-storey rear additions work particularly well for these properties, creating open-plan kitchen-diners without consuming precious garden space. We design layouts that handle the typical party wall configurations found in these terraces, including shared chimney breasts and staggered rear walls.
Suburban Homes Along Castle Road and Harnham
The Castle Road corridor, Harnham, and Churchfields feature a mix of 1920s-1960s semis and detached homes on wider plots. Two-storey extensions adding a bedroom above and living space below are popular here. We design layouts that respect the established rooflines and setbacks while maximising the available footprint within Permitted Development limits or under a Householder application.
Modern Estates at Old Sarum and Bishopdown
Salisbury's newer developments at Old Sarum, Bishopdown, and Hampton Park are built on regular plots with modern construction. Extensions here are generally straightforward and benefit from standard PD rights. We design efficient additions that complement the contemporary aesthetic of these estates, typically adding kitchen-diners or garden rooms that flow into the rear garden.
Typical properties in Salisbury
Ashley Road, Salisbury — late 19th-century terraced housing first mapped on the 1901 OS survey
Fig. 2
Hudson Road, Salisbury — typical residential street in the city's inner suburbs
Fig. 3
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, but there are local distinctions worth understanding — particularly around the Cathedral Close, the city centre conservation area, and the proximity to Salisbury Plain.
How does Wiltshire Council handle extension planning in Salisbury?
Wiltshire Council processes Householder Planning Applications within the standard eight-week period. The fee is £258, the same as across England. The council's planning portal is separate from BCP Council and Dorset Council, but we manage submissions to all three authorities regularly. 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.
Are there restrictions for extensions 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 rigorous 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, ensuring you know exactly which consents are required.
House Extension Options in Salisbury: Cost & Planning Comparison
| Extension Type | Typical Cost/m² | Planning Required? | Typical Duration |
|---|---|---|---|
| Single-storey rear | £1,800–£2,500 | Usually PD | 8–12 weeks |
| Two-storey rear | £1,500–£2,200 | Often PD | 12–16 weeks |
| Victorian terrace ext. | £2,000–£2,800 | Usually PD | 8–12 weeks |
| Conservation area ext. | £2,000–£2,800 | Planning required | 14–20 weeks |
Costs are indicative for Salisbury and vary by specification, site conditions, and builder. Our £250 design pack helps you compare options before committing.
Detailed plans you can build from.
Your extension design pack includes 2-3 professional floor plan options with accurate dimensions, room flow, and layout variations. Drawn by qualified drafters — not AI-generated renders.
- 2-3 layout options included
- Accurate room dimensions
- Share directly with builders
- Planning application ready
Transparent pricing
Every step is fixed-price.
Design Discovery
2-3 floor plan options from photos or Rightmove
3D Laser Scan
Millimetre-accurate measured survey of your home
Lawfulness Certificate
Permitted Development certificate application
Planning Application
Full Householder Planning Application submission
Common questions
Extension plans in Salisbury
Areas we cover
Extension plans across Dorset
Also serving nearby: New Forest, Wimborne, Bournemouth
Ready to start your extension in Salisbury?
Get 2-3 professional floor plan options for £250. No obligation, no follow-up calls.
Every plan drawn by qualified drafters · Covering Salisbury and the wider Dorset area