London House Extensions
& Loft Conversions

Specialising in bespoke house extensions, luxury loft conversions, and full property renovations across Kensington, Chelsea, Islington, Brixton, Walthamstow and Greater London.

Our Expertise

My Local London Builder is a London-based residential construction company delivering extensions, loft conversions and full refurbishments for homeowners across Kensington, Chelsea, Islington, Brixton, Walthamstow and Greater London.

House Extensions

Transforming Victorian terrace homes with light-filled kitchen extensions, side returns, and multi-storey additions that add value and space.

Loft Conversions

Specialist dormer and mansard loft conversions turning unused attic space into luxury bedrooms, en-suites, and home offices.

Full Renovations

Complete structural refurbishment for period properties, heritage homes, and contemporary residential projects across London.

Design Inspiration

Project Style Examples

Some images on this website are used for illustration and inspiration and may not show projects completed by My Local London Builder.

Light filled kitchen extension
Zinc Clad Exterior
Luxury Bathroom
Open Plan Living
Victorian Facade Restoration
Luxury Basement Excavation

About My Local London Builder

We specialise in extensions, loft conversions and full refurbishments for owner-occupier residents, and we connect clients with the right building partners. We are a dedicated team focused on quality craftsmanship and transparent communication.

Building Guides & Advice

Practical guides from our team to help you plan your project

Extensions & Loft Conversions

London Extension Process Guide Step-by-step from planning to snagging → Victorian Side Return Extensions Transform that wasted alley space → Wraparound Extension Guide Side return meets rear extension → Mansard vs Dormer Loft Conversions Which loft type suits your London home? → Loft Conversions in Walthamstow The E17 builder's honest guide → House Extension Cost in Brixton Real 2026 cost data for SW2 & SW9 → Party Wall Surveyors in London Credentials, Schedule of Condition & the Award → Rear Extensions in Islington Conservation areas, Article 4 & what N1 approves → Party Wall Agreement for a Loft Conversion? Which loft types trigger the Act & when to serve notice → How Long Does a Rear Extension Take? Realistic timeline from architect to practical completion → Loft Conversion Planning in Hackney Conservation areas, Article 4 & what you actually need → Single Storey Rear Extension Ideas Layouts, roof types & glazing options for London homes → Do I Need an Architect for a House Extension? Roles, risks & how to choose the right designer → Open Plan Kitchen Extension Ideas Layouts, zoning, islands & light strategy for London homes → Global Conflicts & UK Construction Costs 2026 How Iran, Ukraine & tariffs are affecting what you pay → Permitted Development Rights for London Houses What you can build without planning permission → Two-Storey Rear Extension London Planning rules, structure & design → Hip-to-Gable Loft Conversion London Is your roof suitable? What it involves → Extending a Semi-Detached House in London Rear, side & loft options for semis → Lawful Development Certificate London Do you need one and how to apply → Flat Roof Extension London EPDM, GRP, Part L and rooflights → Bifold Doors for Extensions Planning, thermal performance & design → Rooflights & Skylights London Types, PD rules & fire escape regs → Extending a 1930s Semi in London Options, materials & structural issues → Structural Engineer vs Architect Who you need and when → Article 4 Directions in London How they affect your PD rights → Loft Conversion Fire Safety Part B, escape windows & fire doors → Neighbour Objections to Planning What counts and what doesn't → Loft Conversion in a London Leasehold Flat Freeholder consent, lease review, Section 20 and roof ownership → Rear Extension in Southwark Planning rules for Peckham, Dulwich and Bermondsey → Loft Conversion in Lambeth Dormer rules for Clapham, Brixton and Streatham → Prior Approval for a Larger Home Extension 6m/8m thresholds, 42-day process and key exclusions → House Extension Planning in Camden Conservation areas, Article 4 and what Camden planners expect → Loft Conversions and Extensions in Wandsworth Planning rules for Tooting, Balham, Putney and Battersea → How Long Does Planning Permission Take in London Statutory timelines, borough variations and what causes delays → House Extension in Lewisham Permitted development and planning rules for Lewisham → Basement Excavation in London Costs, risks and what to expect → Roof Terraces & Balconies Planning and build guide for London → Garden Offices & Planning Rules Do you need permission? →

Planning & Regulations

Permitted Development vs Planning Do you need planning permission? → Party Wall Agreement Guide Your rights and the full process → London Building Regulations Guide What needs approval and what doesn't → Conservation Area Guide London Building in a conservation area? → JCT Contracts Explained Protect yourself with the right contract → Building Regs Changes 2025–26 What's new and what it means for your project → Ground Rent Cap 2026 What leaseholders need to know →

Renovation & Period Properties

Period Property Renovation London Victorian & Edwardian home specialists → Restoring Victorian Drawing Rooms Period detail done right → Removing Load-Bearing Walls Open-plan safely and legally → Rewiring & Plumbing Period Homes What to budget and plan for → Soundproofing Party Walls Practical noise reduction in London homes → London Eco-Retrofit Guide Insulation, heat pumps and green upgrades →

Costs & Adding Value

London Construction Costs 2025 Realistic budgets for every project type → Adding Value to Your London Home Which projects give the best ROI? →
Browse all guides →