Back to SectorsHouse Extensions
Specialist Sector
House Extensions
Deep-Dive.
"As the demands of life change, your home needs to evolve to meet them."
Service Scope
TerraLine provides a complete design-and-build service for house extensions across London and the UK. We handle everything from the initial feasibility assessment and architectural drawings through to planning permission, structural engineering, building regulations, and the full construction on site. One team, one point of contact, from concept to completion.
Extension Types We Design & Build
- Single-storey rear extensions
- Double-storey extensions
- Side return extensions
- Wrap-around extensions (rear and side combined)
- Infill extensions
- Kitchen extensions and open-plan living conversions
- Orangeries and garden room extensions
What’s Included
- Feasibility assessment and initial consultation (free)
- Measured survey of your existing property
- Architectural design and planning drawings
- Planning application submission and council liaison
- Structural engineering calculations and building regulation drawings
- SAP calculations and EPC certificate (where required)
- Full construction and project management
- Building control inspections and sign-off
- Snagging, handover, and completion certificate
