Extension plans · Wareham, Dorset
House Extension Plansin Wareham
Extension design pack
Fixed price. 2-3 layout options. 48-hour delivery.
Based in Poole since 2017 · Covering Wareham 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 Wareham
6m × 4m = 24m²
Estimated cost in Wareham
Excl. VAT (£10373 – £15824)
Local insight: Wareham's historic centre requires sympathetic materials. Properties near the River Frome may need flood-resistant construction, which adds £3,000–£8,000 to foundation costs.
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 Wareham: Heritage Meets Modern Living
Wareham is one of Dorset's most historically significant towns, with Saxon walls enclosing a town centre packed with listed and period properties. The surrounding areas — including Stoborough, Sandford, and the outskirts toward Wool — offer a broader mix of post-war and modern housing. Extending a property in or near Wareham requires an understanding of both the tight conservation constraints in the town centre and the more relaxed Permitted Development rules that apply to homes in the wider parish.
Period Properties Within the Town Walls
Wareham's town centre is a designated conservation area, and many properties are individually listed. Extensions here require Listed Building Consent in addition to planning permission, and materials must match the existing structure. Our layouts for listed homes focus on sympathetic rear extensions and internal reconfigurations that add space without altering the street-facing elevation. We produce drawings that satisfy both the planning officer and the conservation officer.
Modern Estates and Rural Properties
Outside the conservation area, homes in Stoborough, Ridge, and along the Bere Regis Road sit on larger plots with fewer constraints. Standard Permitted Development rights apply, making single-storey and two-storey extensions straightforward. We design layouts that take advantage of the generous garden depths typical of these properties, often incorporating wrap-around extensions that create large open-plan kitchen-diners facing south.
Typical properties in Wareham

North Street, Wareham — residential properties within the Saxon-walled town centre
Fig. 2
Stone-built cottage with traditional roof, characteristic of Wareham's Purbeck stone buildings
Fig. 3
Planning Permission for Extensions in Wareham
Wareham falls under Dorset Council, the unitary authority that replaced Purbeck District Council in 2019. Planning applications for the town centre conservation area face additional scrutiny, while properties outside the conservation zone follow standard Permitted Development rules.
How does Dorset Council handle extension planning for Wareham?
Dorset Council processes Householder Planning Applications within the standard eight-week target. The conservation area designation covering central Wareham means that Permitted Development rights are restricted — external cladding, roof alterations, and rear extensions beyond certain limits all require full planning approval. We check your property's designation before recommending a route, avoiding wasted application fees.
What do I need for a listed building extension in Wareham?
If your Wareham property is listed, any alteration — internal or external — requires Listed Building Consent from Dorset Council. This is a separate application from planning permission and carries no fee, but the assessment is rigorous. Our plans include heritage impact statements and material specifications that demonstrate the proposed extension respects the building's character. This significantly improves the chance of a smooth approval.
House Extension Options in Wareham: Cost & Planning Comparison
| Extension Type | Typical Cost/m² | Planning Required? | Typical Duration |
|---|---|---|---|
| Single-storey rear | £1,700–£2,400 | PD outside conservation area | 8–12 weeks |
| Listed building ext. | £2,200–£3,200 | Planning + LBC required | 16–24 weeks |
| Two-storey rear | £1,500–£2,100 | Often PD outside town | 12–16 weeks |
| Conservation area ext. | £2,000–£2,800 | Planning required | 14–20 weeks |
Costs are indicative for Wareham 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 Wareham
Areas we cover
Extension plans across Dorset
Also serving nearby: Poole, Dorchester, Weymouth
Ready to start your extension in Wareham?
Get 2-3 professional floor plan options for £250. No obligation, no follow-up calls.
Every plan drawn by qualified drafters · Covering Wareham and the wider Dorset area