Extension plans · Poole, Dorset
House Extension Plansin Poole
Extension design pack
Fixed price. 2-3 layout options. 48-hour delivery.
Based in Poole since 2017 · Covering Poole 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 Poole
6m × 4m = 24m²
Estimated cost in Poole
Excl. VAT (£10373 – £16376)
Local insight: Poole's mix of Sandbanks premium properties and Parkstone family homes means costs vary significantly. Waterfront properties command premium build rates due to access constraints and material specifications.
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 Poole: Why Local Knowledge Matters
Poole is one of the most architecturally diverse towns in Dorset. From the millionaires' row of Sandbanks peninsula to the Edwardian terraces of Upper Parkstone, the leafy detached homes of Canford Cliffs, and the post-war estates of Oakdale and Hamworthy, every neighbourhood presents different extension opportunities. Our design team works with Poole properties daily — we understand the plot depths, construction types, and planning sensitivities that vary from street to street.
Sandbanks and Canford Cliffs Properties
Sandbanks and Canford Cliffs are home to some of the highest-value residential property in the UK. Extensions here are often large-scale projects involving basement additions, double-height glazing, and contemporary wrap-around designs. Plot values mean every square metre matters. Our layouts maximise usable floor area while respecting the coastal character of the area and the strict design expectations of BCP Council's planning team for this sensitive stretch of coastline.
Parkstone and Branksome Park Homes
Upper and Lower Parkstone contain a rich mix of Edwardian villas, 1930s semis, and mid-century detached homes. Many sit on generous plots with mature gardens, making them excellent candidates for single-storey rear extensions or side-return infills. Branksome Park's larger plots suit two-storey extensions that add bedrooms above and open-plan living below. We design layouts that respect the established streetscape while transforming the ground-floor experience for modern family life.
Hamworthy and Oakdale Estates
The post-war housing estates of Hamworthy and Oakdale feature compact three-bedroom semis and terraces on tighter plots. Extensions here need careful design to avoid overshadowing neighbours or consuming too much garden space. We specialise in efficient layouts that add a meaningful kitchen-diner or garden room without triggering a full planning application — keeping your project within Permitted Development limits and your budget under control.
Typical properties in Poole
Houses in Mossley Avenue, Branksome — a neighbourhood with many loft conversions, typical of Poole
Fig. 2
Houses in Verity Crescent, Newtown — suburban residential street in the Poole council area
Fig. 3
Planning Permission for House Extensions in Poole
Poole falls under BCP Council (Bournemouth, Christchurch and Poole), which processes all Householder Planning Applications for the area. The council was formed in 2019 by merging the former Borough of Poole, Bournemouth Borough, and Christchurch Borough. Most single-storey rear extensions in Poole fall within Permitted Development rights, but several neighbourhoods have additional constraints worth understanding before you commit to a design.
What are the Permitted Development rules for extensions in Poole?
Under current Permitted Development rules, single-storey rear extensions can project up to four metres from the original rear wall of a semi-detached property and six metres for detached homes without a planning application. The larger home extension scheme allows up to six metres (semi) or eight metres (detached) through a Prior Approval neighbour notification process. We assess which route your project qualifies for and prepare the appropriate submission, saving you both time and the full planning application fee of £258.
How do flood zones affect extensions near Poole Harbour?
Properties close to Poole Harbour, along Sandbanks Road, and in parts of Hamworthy may fall within Flood Zone 2 or 3. Extensions in these areas require a Flood Risk Assessment as part of any planning application, and ground-floor levels may need to be raised. We identify flood risk early in the design process and factor it into our layouts — including raised thresholds, flood-resilient materials, and drainage strategies that satisfy both BCP Council and Building Regulations.
Are there conservation area restrictions for extensions in Poole?
Parts of Poole Old Town, the Quay area, and sections of Canford Cliffs fall within conservation areas where Permitted Development rights are restricted. An Article 4 Direction may further remove PD rights for specific property types. We check your property against BCP Council's conservation area maps before recommending a route, ensuring you do not waste money on a design that cannot proceed without full planning consent.
House Extension Options in Poole: 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 / infill | £2,000–£2,800 | Usually PD | 6–10 weeks |
| Wrap-around | £1,800–£2,500 | Planning likely | 12–18 weeks |
| Loft conversion | £1,200–£1,800 | Usually PD | 6–8 weeks |
Costs are indicative for Poole 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 Poole
Areas we cover
Extension plans across Dorset
Also serving nearby: Bournemouth, Wimborne, Wareham
Ready to start your extension in Poole?
Get 2-3 professional floor plan options for £250. No obligation, no follow-up calls.
Every plan drawn by qualified drafters · Covering Poole and the wider Dorset area