Side returns

At Bloom Builders, we design and construct high quality side return extensions across London, with a strong focus on Victorian and Edwardian properties across South West London. We deliver both full design and build services and construction only packages depending on project stage and client requirements.

Our side return extensions are designed to improve ground floor layout, increase natural light and create practical family living spaces that add long term property value.

What Is a Side Return Extension?

A side return extension uses the often underused passageway along the side of a property, most commonly found in Victorian and Edwardian terraced homes. Extending into this area allows significant ground floor expansion without major garden loss.

Side return extensions are typically used to create larger kitchens, dining spaces or open plan family rooms.

Benefits of a Side Return Extension

Space Efficiency
Transforms narrow external space into usable internal living area.

Improved Natural Light
Often incorporates roof glazing, skylights or full height glazing.

Improved Layout
Allows reconfiguration of internal walls to create open plan living.

Property Value
Well designed extensions can significantly improve resale value and buyer appeal.

Our Side Return Extension Services

We provide complete construction and design coordination including:

Structural Construction

• Temporary works design and structural sequencing
• Structural steel installation
• Foundations, masonry and structural wall construction
• Site logistics, skips and hoarding licences
• Waste removal and site management
• Labour, plant and materials coordination

Internal Fit Out

• Partition construction and plaster finishes
• Electrical and heating installation
• Kitchen installation including first and second fix
• Decoration and internal finishes
• Bespoke joinery and storage

Legal and Technical Compliance

• Party wall agreements and neighbour liaison
• Licence to alter and freeholder approvals where required
• Building control coordination and inspections

Health and Safety

All projects are delivered in accordance with Construction Design and Management Regulations (CDM).

Side Return Extension Cost London

Costs vary depending on size, structural complexity, specification and site constraints.

Typical London construction ranges:

Basic Construction
£3,000 to £5,000 per m2

Full Project Ranges
£70,000 to £250,000 depending on scope and specification

We provide early cost guidance to reduce risk and improve budget certainty.

Side Return Extension Projects

We have delivered extensions and structural renovations across South West London including:

Huron Road SW17
Full renovation with kitchen and structural reconfiguration.

Montholme Road
Side return extension combined with roof terrace and internal remodelling.

Rodenhurst Road
Ground floor extension and full internal layout improvement.

Why Work With Bloom Builders?

Clear Cost Planning
Transparent pricing and structured cost advice.

Full Project Coordination
From feasibility and structural planning through to construction completion.

Design and Build Experience
We understand how design decisions translate into build cost, programme and buildability.

Start Your Side Return Extension Project

If you are considering a side return extension in London, we can advise on feasibility, cost and construction approach.

Contact Bloom Builders to discuss your project or request a project cost estimate.