Extension plans · Bournemouth, Dorset
House Extension Plansin Bournemouth
Extension design pack
Fixed price. 2-3 layout options. 48-hour delivery.
Based in Poole since 2017 · Covering Bournemouth 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 Bournemouth
6m × 4m = 24m²
Estimated cost in Bournemouth
Excl. VAT (£10373 – £15272)
Local insight: Bournemouth's Victorian terraces often need party wall agreements on both sides, adding £1,400–£3,000 to the total. Side-return extensions on terraces are the most common project here.
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 Bournemouth: Local Expertise for Every Property Type
Bournemouth's residential landscape spans grand Victorian villas in Westbourne and Boscombe through to interwar semis in Winton and compact modern estates near the Lansdowne. Each property type presents different extension opportunities — and different constraints. Our team designs extension layouts tailored to Bournemouth's housing stock, factoring in typical plot depths, party wall positions, and the rear-garden proportions that are characteristic of each neighbourhood.
Victorian and Edwardian Properties in Bournemouth
Many of Bournemouth's most sought-after homes date from the Victorian and Edwardian eras, featuring solid-wall construction, high ceilings, and long rear gardens. These properties often suit single-storey rear extensions that open the kitchen into the garden, or side-return infills that reclaim the narrow alley running alongside the original scullery. Our layouts account for the period proportions so the extension feels like a natural continuation of the home rather than a bolted-on addition.
Post-War Homes in Winton and Charminster
Post-war semis and detached homes in Winton, Charminster, and Muscliff typically sit on wider plots with shallower gardens. Two-storey extensions work well here, adding a bedroom above and living space below without consuming the entire garden. We design layouts that maximise the first-floor footprint within Permitted Development limits — keeping you under the four-metre rear projection that avoids a full planning application.
Flat Conversions and Maisonettes
Bournemouth has a high density of converted flats, particularly along the East Cliff and in the town centre. If you own the freehold or a share of freehold, ground-floor extensions can add significant value. We work with leaseholders to produce layouts that satisfy freeholder requirements and factor in shared-access routes. Our plans are detailed enough to support the party wall notices typically required in conversion properties.
Typical properties in Bournemouth
195 Holdenhurst Road — Victorian residential property in central Bournemouth
Fig. 2
Springbourne, Bournemouth — quiet residential neighbourhood with typical inner-suburb housing
Fig. 3
Planning Permission for Extensions in Bournemouth
Bournemouth falls under BCP Council (Bournemouth, Christchurch and Poole), which handles all Householder Planning Applications for the area. Most single-storey rear extensions up to four metres (semi-detached) or six metres (detached) fall within Permitted Development rights and do not require planning permission, though you may want a Certificate of Lawfulness for legal certainty when selling.
How does BCP Council handle extension planning applications in Bournemouth?
BCP Council typically processes Householder Planning Applications within eight weeks. The council charges £258 per application at current rates. For extensions in conservation areas — including parts of Westbourne, Boscombe Spa, and the East Cliff — additional restrictions apply. Permitted Development rights may be curtailed, meaning even smaller extensions need full planning approval. We check your property's planning history and constraints before recommending the right route.
Can I build a larger extension in Bournemouth under Permitted Development?
Under the current Permitted Development Order, single-storey rear extensions can project up to six metres from the original rear wall of a semi-detached property (eight metres for detached) under the Prior Approval process. This larger home extension scheme requires a neighbour notification but avoids a full application. We assess whether your project qualifies and prepare the Prior Approval submission if it does, saving you both time and the planning application fee.
House Extension Options in Bournemouth: 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 |
| Side return (Victorian) | £2,200–£3,000 | Usually PD | 6–10 weeks |
| Wrap-around | £1,800–£2,500 | Planning likely | 12–18 weeks |
| Flat conversion ext. | £2,000–£2,800 | Planning required | 10–14 weeks |
Costs are indicative for Bournemouth 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 Bournemouth
Areas we cover
Extension plans across Dorset
Also serving nearby: Poole, Christchurch, Ferndown
Ready to start your extension in Bournemouth?
Get 2-3 professional floor plan options for £250. No obligation, no follow-up calls.
Every plan drawn by qualified drafters · Covering Bournemouth and the wider Dorset area