House Extension Project in Longsight, Manchester
3 Bed Semi-Detached House Extended into a 6 Bedroom Home
KWS Builders transformed a 3 bedroom semi-detached house on Beresford Road, Longsight, Manchester into a spacious 6 bedroom home through a double storey rear and side extension, dormer loft conversion, full new layout, 3 bathrooms, 2 reception rooms, open-plan kitchen, wet underfloor heating, marble staircase, garden room, patio and driveway works.
Main Service
House Extension
Property Upgrade
3 Bed to 6 Bed
Major Works
Rear, Side & Loft
In This Project Page
Project Overview
This project focused on a major house extension and full property transformation for a semi-detached home in Longsight, Manchester. The original property was a 3 bedroom house, and the goal was to create a larger, more practical 6 bedroom home with improved internal flow and modern living spaces.
The work included a double storey rear and side extension, a dormer loft conversion, a completely new layout, 3 bathrooms, 2 reception rooms, a large open-plan kitchen, traditional sand and cement plastering throughout, wet underfloor heating, a marble staircase, a garden room, patio and driveway.
Because the property was taken back to brick, the project was not only about adding space. It required a complete internal rebuild approach where structure, layout, heating, plumbing, plastering, bathrooms, flooring, staircase works and external areas were planned together.
Quick Project Summary
A simple breakdown of the main house extension work and the supporting services included in this Longsight project.
| Project Detail | Information | Why It Matters |
|---|---|---|
| Main Service | House extension | The property needed major additional space, not just cosmetic refurbishment. |
| Property Type | 3 bedroom semi-detached house | Semi-detached properties can often be extended through side, rear and roof-space opportunities, subject to planning and regulations. |
| Final Layout Goal | Converted into a 6 bedroom home | The work increased the property’s usable accommodation and long-term value potential. |
| Major Build Elements | Double storey rear and side extension with dormer loft conversion | Combining rear, side and loft space helped maximise the property instead of relying on one extension area only. |
| Interior Upgrade | 3 bathrooms, 2 reception rooms, open-plan kitchen and marble staircase | The home was redesigned around better family living, comfort and day-to-day practicality. |
| External Works | Garden room, patio and driveway | The project improved both the inside of the property and the way the outside space could be used. |
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Main Service: House Extension
The main service for this project was a complete house extension. The property was extended and reconfigured to create a much larger home, increasing the bedroom count from 3 to 6 while also improving reception space, bathroom provision and the quality of the ground floor living area.
A project of this size needs more than one trade working separately. The extension, loft conversion, new layout, plumbing, heating, plastering, bathrooms, staircase, kitchen space, garden room and external paving all needed to connect as one finished home.
What the Extension Improved
- Converted the property from 3 bedrooms to 6 bedrooms.
- Added a double storey rear and side extension.
- Added a dormer loft conversion for more usable accommodation.
- Created a larger open-plan kitchen and reception space.
- Improved comfort through a wet underfloor heating system.
- Upgraded the home with 3 bathrooms and a marble staircase.
Best For Similar Projects
- Semi-detached homes needing more family living space.
- Properties with side, rear and loft conversion potential.
- Homeowners wanting extra bedrooms without moving house.
- Projects where the existing layout no longer works.
- Major refurbishments that need extensions and interior works together.
Services Included in This House Extension Project
Although the main service was house extension, this project included several connected building services to complete the full transformation properly.
| Service Included | Work Completed | Benefit to the Property |
|---|---|---|
| Double Storey Rear & Side Extension | Extended the property to the rear and side across two storeys. | Created the main additional floor area needed for the 6 bedroom layout. |
| Dormer Loft Conversion | Converted the roof space with a dormer structure. | Added practical upper-floor space and helped maximise the property footprint. |
| New Internal Layout | Replanned the property to include 6 bedrooms, 3 bathrooms and 2 reception rooms. | Made the extended home more practical instead of simply adding square footage. |
| Open-Plan Large Kitchen | Created a larger kitchen and living area with strong natural light and rear access. | Improved day-to-day family living and created a stronger central space in the home. |
| Full House Back to Brick | The house was taken back to brick for deeper internal renovation and service upgrades. | Allowed the property to be rebuilt properly from the inside instead of only being patched over. |
| Traditional Sand & Cement Plastering | Sand and cement plastering was completed throughout the house. | Created solid, durable wall finishes suitable for a major whole-house refurbishment. |
| Wet Underfloor Heating | A water underfloor heating system was installed as part of the new floor build-up. | Improved comfort and helped create cleaner wall space without relying only on radiators. |
| Marble Staircase | A marble staircase finish was installed with decorative balustrade detailing. | Improved the main hallway presentation and gave the extended home a premium finish. |
| Garden Room, Patio & Driveway | External works included the garden room, rear patio and front driveway. | Extended the usable lifestyle space beyond the main house and improved kerb appeal. |
Detailed Scope of Work
A house extension project of this scale requires careful sequencing. Structural extension work, dormer loft construction, internal layout changes, first fix services, underfloor heating, plastering, bathrooms, kitchen formation and final finishes all need to be planned together so the property works as one complete home.
Structural & Space Works
- Double storey rear extension.
- Double storey side extension.
- Dormer loft conversion.
- Full house back-to-brick preparation.
- New layout formation across the property.
Interior & Services
- 3 bathroom installation and finishing.
- Large open-plan kitchen formation.
- Wet underfloor heating system.
- Traditional sand and cement plastering.
- Lighting, plumbing and heating coordination.
Finishing & External Works
- Marble staircase finish.
- Internal doors, floors and decoration works.
- Garden room construction.
- Rear patio works.
- Front driveway works.
How the Layout Was Improved
The goal was not simply to make the house bigger. The new space had to work practically as a 6 bedroom family home with better reception space, bathrooms and day-to-day comfort.
| Layout Need | How This Project Responded | Why It Matters |
|---|---|---|
| More Bedrooms | The property was extended from 3 bedrooms to 6 bedrooms. | The home could support a larger household and provide more flexible accommodation. |
| Better Family Living Space | A large open-plan kitchen and reception area was created. | The ground floor became more open, social and practical for daily use. |
| Bathroom Capacity | 3 bathrooms were included in the new layout. | More bathrooms are important when the property grows to 6 bedrooms. |
| Modern Heating Comfort | A water underfloor heating system was installed. | Underfloor heating supports comfort in larger open spaces and helps reduce wall clutter. |
| Usable Outdoor Space | A garden room, patio and driveway were completed. | The project improved the property’s external usability and overall presentation. |
Our House Extension Process
Large extension projects need a clear build route. This helps the homeowner understand how the work moves from first review to structural works, internal services and final finish.
1. Project Review
We review the property, understand the client’s goals and identify the best route for extension, loft conversion and layout improvement.
2. Scope & Planning
We clarify the main works, supporting services, likely build stages and any planning, drawings, structural or Building Regulations considerations.
3. Structural Build
The main extension, dormer and structural works are carried out in practical stages with attention to access, weather protection and build sequence.
4. First Fix & Services
Plumbing, heating, electrics, wet underfloor heating and bathroom services are coordinated before floors, walls and finishes are completed.
5. Plastering & Finishing
Traditional plastering, bathroom tiling, staircase works, kitchen works, flooring and decoration bring the property towards final handover.
6. External Completion
Garden room, patio and driveway works complete the wider transformation so the home feels finished inside and outside.
Planning a House Extension in Manchester?
Whether you want a rear extension, side extension, double storey extension, dormer loft conversion, open-plan kitchen or a full back-to-brick home transformation, KWS Builders can help you plan the project properly.
Why Choose KWS Builders for House Extensions?
House extension projects need more than basic building work. They require planning, sequencing, practical problem-solving and a clear understanding of how the finished property needs to function once the new space has been added.
KWS Builders works with homeowners and property investors across Manchester on house extensions, loft conversions, full house renovations, garage and cellar conversions, garden rooms, landscaping, new builds and design and planning permission services.
Why KWS Works Well for This Type of Project
- Experience across extensions, conversions and full house renovations.
- Ability to coordinate multiple trades within one large project.
- Practical advice before construction begins.
- Support with layout, build sequence and finishing details.
- Manchester-focused building and home improvement services.
What We Help Clients Avoid
- Starting a major extension without a clear scope.
- Adding space without improving the layout.
- Separating services that should be planned together.
- Underestimating heating, plumbing and bathroom requirements.
- Finishing a large project without proper internal and external completion.
Similar Services You May Need
If you are planning a large house extension, you may also need one or more of these connected KWS building services.
| Service | When You Need It | Typical Project Use |
|---|---|---|
| Loft Conversions | When the roof space can be converted into a usable room. | Extra bedrooms, guest rooms, offices and dormer conversions. |
| Full House Renovation | When the existing property needs a complete internal upgrade. | Back-to-brick renovation, new layout, plastering, flooring and decoration. |
| Garden Rooms | When you want a separate space in the garden. | Home office, gym, studio, guest space or garden living area. |
| Landscaping, Patio & Driveway | When external spaces need to match the upgraded home. | Patio paving, driveway finishes, garden access and kerb appeal. |
| Design & Planning Permission | When drawings, approvals or feasibility need checking before work starts. | Double storey extensions, dormers, larger layout changes and structural works. |