House Extensions in Newham

At Bigness Group, we design and build high-quality house extensions in Newham, helping homeowners transform traditional East London properties into bright, modern, and practical spaces.
From Victorian terraces in Forest Gate and Plaistow to modern family homes in Stratford and East Ham, our bespoke extensions enhance comfort, functionality, and long-term value.

We take care of everything — design, planning, engineering, and construction — so you can enjoy a seamless, stress-free experience and a beautifully finished result.

Design and Build Services

Our Newham design-and-build team offers a complete, integrated service:

• Full measured survey and architectural design

• Planning and permitted development advice for Newham Council

• Structural engineering and Building Control coordination

• Kitchen, dining, and living space planning

• Dedicated project management and milestone tracking

With Bigness Group, you have one accountable team handling every step — ensuring precision, communication, and peace of mind throughout the build.

Types of Extensions We Build

We construct all major types of home extensions across Newham, including:

• Glass Box Extensions – Architectural designs with minimalist finishes.
• Modern House Extensions – Contemporary builds for minimalist homes.
• Single-Storey Extensions – Open up your ground floor with modern, light-filled layouts..
• Double-Storey Extensions – Add new bedrooms, offices, or bathrooms upstairs.
• Side-Return Extensions – Ideal for terraced homes in Forest Gate and Manor Park.
• Rear Extensions – Extend towards the garden with glass doors and rooflights.
• Wrap-Around Extensions – Combine side and rear builds for maximum space.
• Conservatories & Orangeries – Glazed designs for year-round comfort.
• Loft & Garage Conversions with Extensions – Add new floors or repurpose existing structures.
• Basement Extensions – Create gyms, cinemas, or private lounges below ground.

Construction Standards

Every Bigness project in Newham follows a six-step, quality-controlled build process:

1. Groundworks & Foundations – Engineered for local East London soil conditions.

2. Structural Framework – RSJs and beams installed for strength and open plans.

3. Walls & Roofs – Brick match, render, or cladding with warm-roof insulation.

4. Windows & Glazing – Energy-efficient materials meeting all regulations.

5. Interior Finishes – Plumbing, electricals, plastering, and flooring to specification.

6. Final Certification & Warranty – Building Control approval and full warranty.

Local Knowledge

We have extensive experience with Newham Council’s planning and building control procedures, including heritage guidelines for Stratford, East Ham, and Green Street.
Our understanding of local design character and planning standards ensures every extension complements its surroundings and gains approval quickly.

Costs and Financing

Every extension is unique, but here’s a general guide:

💡 Factors include size, materials, access, and specification level.

We provide transparent quotes with detailed breakdowns and stage payments.
Financing options may be available through our partner lenders for eligible clients — ask our team for guidance on home improvement financing.