Professional House Extensions Manchester
Expert house extension services in Manchester.
Single-storey, double-storey & wrap-around extensions.
Free consultation & quote.
Why Manchester homeowners and businesses choose us
House Extensions Manchester with 30 Years Experience and 500 Projects Completed
Your family needs more space. Your kitchen barely holds three people. You need a home office, but have nowhere to build it.
Moving house means higher mortgage payments, estate agent fees, solicitor costs, and leaving the neighbourhood your children attend school in.
A professionally designed house extension gives you the space without the expense and disruption of moving. You stay in the home and area you love while increasing both living space and property value.
At Stars House Builders, we have spent three decades perfecting house extensions. Our team brings 30 years of combined international building experience from the UK, Germany, and Iran to every Manchester project.
We have completed over 500 extensions across the North West, managing everything from the first planning application to the final building control inspection.
Whether you want a single-storey kitchen extension in Swinton opening onto your garden, a double-storey addition in Warrington adding two bedrooms, or a side return in Manchester city centre transforming your cramped Victorian terrace, we design and build extensions that look like they have always been part of your home.
Our international experience means that European building standards are aligned with the deep knowledge of Manchester planning regulations. Your extension passes every inspection the first time because we know exactly what Manchester building control officers expect.
Types of house extensions in Manchester
Single-storey extensions
Single-storey extensions are Manchester's most popular choice for adding space cost-effectively. They extend from your rear or side, making them perfect for kitchens, living rooms, or open-plan areas.
Key benefits: Lower costs than for a double storey, 8-12 week completion, often no planning permission required under permitted development rights.
Common uses: Kitchen extensions with bi-fold doors, open plan kitchen-dining areas, living room expansions with roof lights, utility rooms, garden rooms, and home offices.
Double-storey extensions
Double-storey extensions maximise space while minimising garden loss. You gain rooms on the ground and first floors, ideal for growing families needing bedrooms, bathrooms, and living space.
Planning: Requires permission in most cases but offers better value per square metre.
Popular designs: Ground-floor kitchen with two bedrooms above; living room extension with a master en-suite above; side extensions adding rooms on both levels.
Timeline: 12-16 weeks of construction.
Rear extensions
Rear extensions are the simplest type of Manchester extension. Extending into your garden often qualifies as permitted development, so you don't need planning permission.
Manchester regulations: Extend by up to 6 metres (detached) or 3 metres (semi-detached/terraced) without permission, subject to permitted development criteria.
Perfect for: Kitchen-dining extensions, open plan living, utility rooms, downstairs toilets, and extended family rooms.
Timeline: 10-12 weeks of completion.
Side return extensions
Side return extensions transform the narrow alleyway beside Victorian and Edwardian terraced houses. That wasted space, once used to store bins, becomes a valuable living area.
Space gain: 2-3 metres added width to your kitchen or living room dramatically improves functionality and property value.
Planning: Many qualify for permitted development in Manchester.
Timeline: 8-10 weeks of construction.
Wrap-around extensions
Wrap-around extensions combine rear and side return extensions in an L-shape, dramatically increasing ground-floor space and transforming home functionality.
Planning: Always requires permission in Manchester.
Ideal for: Large open-plan kitchen-dining-living areas, ground-floor bedrooms, home offices, and maximising natural light and property value.
Timeline: 14-18 weeks of construction.
Kitchen extensions
Kitchen extensions are our most requested project. Modern family life centres on the kitchen, and extending this space transforms daily household function.
Popular features: Bi-fold or sliding doors to the garden, roof lanterns for natural light, open-plan layouts linking kitchen, dining, and living, breakfast bar islands, utility rooms, and underfloor heating.
Our approach: We design kitchens matching how you actually cook and entertain, not magazine layouts.
Our house extension design process
1Free initial consultation
Every project starts with a free consultation at your Manchester property. We discuss what you want to achieve, how you use your home, and what is important to you. During this visit, we assess your property's structure and current layout, available space for extension, access for construction, ground conditions and drainage, whether planning permission is likely to be required, and approximate project costs. This consultation takes 60-90 minutes. You get professional advice about what is achievable within your budget. Call 0161 327 1627 or visit our Swinton office to book your free consultation.23D design visualisation
We create detailed 3D visualisations showing exactly how your extension will look when complete. You can see your new space from multiple angles before construction begins. You can see how the extension relates to your existing house, how much natural light it lets in, and how the rooms connect. If you want changes, we will make adjustments to the design until you are completely happy. Many Manchester homeowners find 3D visualisations invaluable when discussing plans with family members or getting quotes from different builders.3Architectural drawings and structural calculations
Once the design is finalised, we prepare detailed architectural drawings. These include floor plans, elevations, sections, and site plans that accurately show your extension. Extensions need structural engineer calculations to ensure they are safe and comply with building regulations. Our structural engineer assesses foundation design based on ground conditions, beam sizes for any walls being removed, load-bearing calculations for new walls, roof structure calculations, and connection details between the new and existing structures.4Planning and building regulations
We handle all applications and paperwork. If planning permission is required, we submit applications, respond to any council queries, and keep you updated throughout the 8-week review period. Current planning fees are £206 for most home extensions. Building regulations are always required. We submit detailed plans to building control. They approve drawings before construction starts, then inspect work at key stages. Building control fees are typically £800-£1,200. If your extension affects a shared wall with neighbours, you need party wall agreements. We arrange party wall surveyors and handle the process. You do not need to deal with council officials or understand technical building regulations. We manage everything while keeping you informed.
Extension Projects
We Have Completed
We have completed house extensions across Manchester including a house extension in Bury with a 4x7 metre rear extension creating open plan kitchen and dining area, three new offices for a car showroom in Bury, a Warrington modern garage with home office above, Stockport commercial space renovation, Radcliffe residential renovation with complete rear extension, and Oldham's modern bathroom renovation creating a new en-suite.
These projects demonstrate our experience across different property types and extension styles. View more completed projects in our portfolio or visit our Swinton office.
Start your Manchester house extension today
We bring 30+ years of combined international building experience to every extension project. Our team has completed over 500 extensions across Manchester. We understand local property types, ground conditions, and planning requirements.
- This combination of international expertise with local knowledge delivers quality work that passes building control.
- Design, planning, building regulations, and construction are all managed by one team. No coordinating multiple contractors or wondering who is responsible for what.
- 3D visualisation is included. See your extension before construction begins. Make changes easily while designs are on screen.
- Detailed itemised quotes show exactly what you pay for. No hidden extras or surprise costs halfway through construction.
- We manage all inspections and certifications. You do not need to understand technical building regulations or deal with council officials.
Get your free consultation and 3D design
We start every project with a free consultation at your Manchester property.
During this visit, we discuss what you want to achieve, assess your property's structure and layout, advise on whether planning permission is likely to be needed, provide approximate project costs, and explain the complete process from design to handover.
After consultation, we create 3D visualisations showing your proposed extension. You see exactly how it will look before committing to anything.
Your home transformation starts with one conversation. We are ready when you are.