Building Services — Rochdale
House Extensions
Rochdale & Greater Manchester
Create the space your family deserves — without the cost and stress of moving. NR Prime Projects builds single storey, double storey, rear and side extensions across Rochdale and Greater Manchester. Full structural build, professionally managed, and delivered on time.
About Our Service
House Extension Builders
in Rochdale & Greater Manchester
At NR Prime Projects, we build house extensions for homeowners across Rochdale and Greater Manchester. Whether you want to create an open-plan kitchen-diner, add a ground-floor bedroom, build a home office, or give your family a larger living space — extending your home is almost always more cost-effective than moving, and significantly less stressful.
We manage every element of your extension from the initial survey and design brief through to a fully finished, decorated room — including groundworks, foundations, brickwork, steelwork, roofing, windows, bi-fold or French doors, insulation, plastering, electrics, plumbing, and flooring. One team, one project, one point of contact from start to finish.
House extension costs in Rochdale and Greater Manchester are significantly lower than London and the South East, making now an excellent time to invest in your existing home. Prices in the North West typically run 20–30% lower than equivalent work in the capital. See our full services overview or get a free quote today.
- Full groundworks and foundations
- Brickwork, blockwork and structural steelwork
- Flat or pitched roof to match or complement existing
- Windows, bi-fold doors, French doors and roof lanterns
- Insulation to current Part L Building Regulations
- Electrical first and second fix throughout
- Plumbing if required (WC, sink, underfloor heating)
- Plastering, flooring, and decoration
- Building Regulations compliance managed throughout
Types of Extension
Which House Extension
Is Right for Your Home?
Every home and every family has different needs. Here are the most common extension types NR Prime Projects delivers across Rochdale and Greater Manchester.
Single Storey Rear Extension
The most popular extension type in Rochdale. A single storey addition to the rear of your property dramatically increases your kitchen, dining room, or living space — creating the open-plan layout that most modern families want. Most single storey rear extensions in Greater Manchester fall under Permitted Development and do not require full planning permission, making them the quickest and simplest option to get started. Typically completed in 8–14 weeks.
Double Storey Extension
If you need to add significant space across two floors — for example a larger kitchen downstairs and an extra bedroom above — a double storey extension is the most efficient and cost-effective option per square metre. Double storey extensions always require full planning permission from Rochdale Council, and the design must comply with daylight and overshadowing requirements for neighbouring properties. Typically completed in 14–22 weeks.
Side Return Extension
Many Rochdale terraced and semi-detached homes have a narrow side passage running alongside the kitchen — often unused and wasted. A side return extension fills this passage to create a noticeably wider kitchen and dining space without requiring any additional garden space. It is one of the most transformative extensions possible for a terraced house. Typically permitted development if it does not exceed the original width of the property on a non-highway boundary.
Wrap-Around Extension
A wrap-around extension combines a rear extension and a side return extension into one L-shaped addition — delivering the maximum possible ground floor space in a single project. It is ideal for homeowners who want a large open-plan kitchen, dining room, and living room that flows into the garden. Wrap-around extensions almost always require full planning permission due to their size, but they are among the most transformative projects we deliver across Greater Manchester.
What's Included
Every Element of Your Extension
Managed By Our Rochdale Team
NR Prime Projects handles every trade and every element of your house extension from groundworks to the finished room — one team, one project, no coordination headaches.
Groundworks & Foundations
Strip foundations or raft foundations depending on ground conditions, drainage diversions, and DPC installation. We assess ground conditions at the survey stage so there are no surprises at groundworks stage.
Brickwork & Blockwork
External walling in matching or complementary brick, internal blockwork cavity walls to Building Regulations Part L insulation requirements. We source brick to match your existing property wherever possible.
Roofing
Flat or pitched roof to match or complement your existing roof. Flat roof extensions use EPDM rubber for durability. Pitched roof extensions are tiled in matching materials with full ridge, lead flashings, and roofline.
Windows & Doors
Supply and installation of windows, bi-fold doors, French doors, sliding doors, and roof lanterns. We work with aluminium and uPVC frames in any colour or finish to match your design brief and existing property.
Insulation
Full thermal insulation to walls, roof, and floor to meet 2026 Building Regulations Part L requirements. Properly insulated extensions are comfortable to use year-round and cost-efficient to heat — we do not cut corners here.
Electrics
Full electrical installation including lighting, power sockets, consumer unit changes where required, and any specialist circuits. All work certified to Part P Building Regulations by our qualified electricians.
Plumbing
Hot and cold water supply, waste pipes, and drainage connections if your extension includes a utility room, WC, or wet area. Underfloor heating supply and manifold installation where specified.
Plastering
Full skim plaster to all new walls and ceilings, leaving a smooth, primed finish ready for decoration. We also plaster any disturbed areas of the existing house created by the extension works.
Flooring
Floor screed or boarding, plus your choice of finish — porcelain tiles, LVT, laminate, or solid wood. We level and prepare the sub-floor before laying to ensure a perfectly flat finished result throughout.
Popular Uses
What Will You Do With
Your New Space?
A house extension opens up possibilities that transform how your family lives day to day. Here are the most popular uses across Rochdale and Greater Manchester.
Open-Plan Kitchen Diner
The most requested extension in Greater Manchester. Knock through the rear wall, extend back, and create a wide open-plan kitchen, dining room, and family space with bi-fold doors to the garden — the layout every growing family wants.
Ground-Floor Bedroom
Ideal for elderly family members, disabled access needs, or simply freeing up a bedroom upstairs. A ground-floor bedroom extension avoids the disruption and cost of a loft conversion while adding a fully accessible room at ground level.
Large Living Room
Extend the lounge or sitting room to create a proper family living space — large enough for a sofa, dining table, and a play area for children. A rear living room extension with a roof lantern flooding the space with natural light is one of the most impactful changes you can make.
Home Office
A dedicated garden-facing home office extension gives you a quiet, professional workspace completely separate from the main house. With proper insulation and natural light, it is a far superior working environment to a converted spare bedroom.
Utility & Boot Room
A rear extension combining a utility room and boot room is one of the most practical additions for a family home — keeping washing machines, tumble dryers, muddy coats, and school bags out of the main living space for good.
Garden Room / Orangery
A glazed extension or orangery creates a light-filled room that connects the interior of your home to your garden throughout the year — a peaceful retreat in summer, a warm and light space in winter, and a beautiful feature that adds significant value to your property.
2026 Price Guide
How Much Does a
House Extension Cost
in Rochdale?
House extension costs in Rochdale and Greater Manchester range from £1,200 to £2,200 per square metre in 2026, depending on the size, specification, and complexity of the build. A standard finish sits at the lower end. Premium finishes with bi-fold doors, roof lanterns, underfloor heating, and high-end fixtures push towards the upper end.
Costs in the North West are significantly lower than London and the South East, where equivalent specifications cost £2,500–£4,000+ per m². Labour rates and material costs in Rochdale remain competitive, making now an excellent time to invest in your home.
Additional costs to budget for separately include: architect or structural engineer fees if required (8–15% of build cost), Building Regulations application fee, planning application fee if needed (currently £258 for householder applications in England), VAT at 20% on most extension work.
💰 Extending vs moving in Rochdale — which is better value?
The average cost of moving house in the UK now exceeds £25,000–£35,000 in stamp duty, estate agent fees, legal fees, and removals. In most cases, a well-designed extension that creates the space your family needs costs significantly less — and you keep the home, street, and school catchment you already love.
Planning Permission
Do You Need Planning
Permission in Rochdale?
Many house extensions in Rochdale fall under Permitted Development Rights and do not require a full planning application. The rules are set by Parliament and apply to most houses in England — including properties across Greater Manchester.
The key Permitted Development limits for house extensions are: single storey rear extensions must not extend beyond 4 metres on detached houses or 3 metres on any other house. These depths can be doubled to 8m and 6m respectively via the Prior Approval (Larger Home Extension) route, subject to neighbour consultation.
Our team confirms exactly what permissions are required at your free site survey — and where a planning application is needed, we can manage the process on your behalf or recommend a trusted local architect.
Usually Permitted Development
Single storey rear extension up to 3m (terrace/semi) or 4m (detached) · Maximum height 4m · Does not exceed 50% of original garden area · Materials similar to existing house · Not on designated land (conservation area, listed building) · Eaves no higher than existing property eaves
Larger Home Extension (Prior Approval)
Extensions up to 6m (terrace/semi) or 8m (detached) can proceed via Prior Approval rather than full planning permission. Rochdale Council notifies neighbours and must approve within 42 days. Most applications are approved if neighbours do not object. We advise on this process at your free survey.
Full Planning Permission Required
Double storey extensions · Extensions exceeding PD depth limits · Side extensions on corner plots facing a highway · Extensions in conservation areas or on listed buildings · Wrap-around extensions that exceed PD limits · Any extension that would affect a neighbour's right to light significantly
How It Works
Your Extension — From
First Call to Finished Room
Free Site Survey
We visit your home, assess the space, discuss your vision, confirm planning status, and answer all your questions — at no cost and no obligation.
Fixed-Price Quote
Within 48 hours we send a fully itemised, fixed-price written quote. No hidden costs — every element of the build is listed so you know exactly what you are paying for.
Planning & Building Regs
We manage the Building Regulations application throughout. Where planning permission is needed, we advise on the process and can recommend an architect to prepare drawings.
Build & Handover
We complete your extension from groundworks to finished room — on time, within budget, and to a standard you will be proud of. Workmanship guaranteed.
Where We Work
House Extensions Across
Rochdale & Greater Manchester
Based in Rochdale, NR Prime Projects builds house extensions across the whole of Greater Manchester and the surrounding North West area.
FAQ
House Extension
Questions Answered
Common questions from Rochdale homeowners about house extension costs, planning permission, timescales, and what is involved. Not found your answer? Just ask us.
House extensions in Rochdale cost between £1,200 and £2,200 per square metre in 2026 depending on specification. A 20m² single storey rear extension starts from around £30,000. A standard 30m² extension typically costs £40,000–£56,000. A double storey extension of 40–60m² ranges from £55,000 to £100,000. Greater Manchester prices are 20–30% lower than London. All our quotes are free, fixed-price, and fully itemised.
Many single storey rear extensions in Rochdale do not need planning permission under Permitted Development Rights. A single storey rear extension up to 3 metres (on terraced or semi-detached homes) or 4 metres (on detached homes) can usually proceed without a planning application. Extensions up to 6m or 8m may be possible via the Prior Approval route. Double storey extensions, side extensions on corner plots, and extensions in conservation areas always require full planning permission from Rochdale Council. We advise you at your free site survey.
A standard single storey rear extension typically takes 8–14 weeks to complete from groundworks to a finished room. A double storey extension takes 14–22 weeks. Larger or more complex projects may take longer. These timescales cover all trades — groundworks, brickwork, roofing, windows, first fix, plastering, second fix, and decoration. We give you a clear programme before we start and update you throughout.
A well-designed house extension in Greater Manchester typically adds 10–25% to property value depending on the size, type, and quality of the build. Kitchen extensions creating open-plan dining and living are among the highest-value additions. With the cost of moving house in the UK now exceeding £25,000–£35,000 in stamp duty, legal fees, and estate agents, extending is almost always better financial value than moving to a larger home in the same area.
Yes — in the vast majority of cases you can remain in your home throughout the build. The most disruptive phase is when we break through the existing rear wall to connect the extension to the house interior. Our team manages this efficiently, typically completing the breakout and making good within a working day. We protect internal areas with dust sheets and boards throughout and clear up at the end of every working day.
For extensions that fall under Permitted Development, formal architectural drawings are not always required for the planning process — though structural calculations are always needed for Building Regulations. For extensions that require full planning permission, architectural drawings and a design and access statement are usually required. NR Prime Projects will advise you on what is needed at your free site survey and can recommend trusted local architects and structural engineers where required.
Free Quote
Ready to Extend Your
Rochdale Home?
Whether you want a single storey kitchen extension, a double storey addition, or anything in between — NR Prime Projects will carry out a free site survey and provide a fixed-price, fully itemised written quote within 48 hours. No obligation, no pressure.