Building Guidance

Navigating the complexities of London construction. Expert advice to help you build with confidence.

Rear Extension in Southwark

Planning permission, conservation areas and what to expect for rear extensions in Peckham, East Dulwich, Bermondsey and Borough.

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Loft Conversion in Lambeth

Planning rules, conservation area restrictions in Clapham and Brixton, and what Lambeth Council typically approves for dormer and hip-to-gable loft conversions.

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Prior Approval for a Larger Home Extension

How the prior approval route works for extensions beyond standard permitted development limits — 6m/8m thresholds, the 42-day process and where it cannot be used.

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Loft Conversion in a London Leasehold Flat

What leasehold flat owners need to know before converting a loft — freeholder consent, lease review, Section 20 and structural ownership.

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House Extension Planning in Camden

How Camden's conservation areas, Article 4 Directions and design policy affect rear extensions and loft conversions.

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Loft Conversions and Extensions in Wandsworth

Borough guide for Wandsworth homeowners — planning rules, conservation areas and what works in Tooting, Balham, Putney and Battersea.

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How Long Does Planning Permission Take in London

The statutory 8-week rule, validation delays, borough variations and what actually determines your planning application timeline.

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House Extension in Lewisham

Permitted development, planning permission and borough rules for Lewisham homeowners in Catford, Forest Hill, Blackheath and beyond.

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2025-26 Building Regs Changes

New rules for Extensions & Lofts. Parts L, O, and B explained. Don't get caught out.

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Ground Rent Cap Announced (2026)

Breaking: PM announces £250 cap and peppercorn rents. A massive shift for leaseholders.

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The Extension Process Explained

A brutally honest step-by-step guide to the timeline, permissions, and reality of building in London.

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Permitted Development vs Planning

A definitive guide to London planning laws. Understand your rights and when to apply for full permission.

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Party Wall Agreements

What you need to know about notifying your neighbours before starting work. Bridges, notices, and awards.

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The Victorian Side Return

Transforming the damp alleyway into a light-filled heart of the home. The ultimate London extension guide.

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Mansard vs Dormer: The Loft Guide

A battlefield of geometry. We compare the boxy pragmatism of the Dormer against the elegant lines of the Mansard.

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Loft Conversions in Walthamstow

The E17 builder's honest guide. Planning rules, costs, conservation area traps, and what to look for in a Walthamstow loft conversion specialist.

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House Extension Cost in Brixton

Real 2026 cost data for SW2 & SW9. What drives prices up in Brixton, Lambeth planning rules, and how to get a quote you can actually trust.

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Party Wall Surveyors in London

What a party wall surveyor actually does, what credentials to look for, and how to move through the Schedule of Condition and Award process without falling out with your neighbours.

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Rear Extensions in Islington

Islington is one of London's most tightly controlled boroughs. What the council actually approves, how Article 4 directions affect your options, and how to design for conservation areas across N1, N5, and N7.

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Do You Need a Party Wall Agreement for a Loft Conversion?

Most London loft conversions trigger the Party Wall Act — but not all. Understand exactly which loft types require a notice, when to serve it, and what happens if a neighbour disputes.

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How Long Does a Rear Extension Take in London?

The build is the shorter part. A realistic breakdown of every stage — planning, party wall, Building Regs, procurement, and the full on-site programme — with the common delays and how to avoid them.

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Planning Permission for a Loft Conversion in Hackney

Hackney has more conservation areas and Article 4 directions than most people realise. A borough-specific guide to what requires permission, what doesn't, and how to confirm your status before you start.

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Single Storey Rear Extension Ideas for London Homes

The best single storey extensions start with the plan, not the elevation. A design-led guide to layouts, roof types, glazing options, and the details that make the difference in London terraces and semis.

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Do I Need an Architect for a House Extension in London?

Legally, no. But whether you need a designer — and at what level — depends on your project's complexity, location, and how much design and construction risk you want to manage yourself. A clear breakdown of the roles, the risks, and how to choose.

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Open Plan Kitchen Extension Ideas for London Homes

The open plan kitchen-diner is the most requested extension in London. A design-led guide to layouts, zoning, islands, light strategy, flooring, ventilation, and the details that make the difference between good and great.

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How Global Conflicts Are Affecting UK Construction Costs in 2026

From the Russia-Ukraine war to the 2026 US-Iran conflict, geopolitical events have a direct and measurable impact on what London homeowners pay for extensions and renovations. Here is how the transmission mechanism works — and what to do about it.

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Permitted Development Rights for London Houses

What you can build without planning permission — extensions, loft conversions, rooflights, outbuildings. Covers Article 4 Directions, conservation areas, and the Larger Home Extension Prior Approval Scheme.

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Two-Storey Rear Extension London

Planning rules, structural considerations, and design approaches for a two-storey rear extension — including the 45-degree rule, party wall implications, first-floor window design, and how planning differs from a single-storey addition.

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Hip-to-Gable Loft Conversion London

Is your roof suitable? What a hip-to-gable conversion involves, which properties qualify, Permitted Development rules, how head height works, and when to combine it with a rear dormer.

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Extending a Semi-Detached House in London

How semi-detached properties differ from terraced houses, what rear and side extensions are possible, the planning rules specific to semis, and how to make the most of a wider plot with an exposed side elevation.

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Lawful Development Certificate London

What an LDC is, why you should get one even when planning permission isn't required, the difference between proposed and existing certificates, the 10-year rule change, and how to apply.

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Flat Roof Extension London

Planning rules, Building Regulations (Part L U-values, drainage), waterproofing systems (EPDM, GRP, single-ply), rooflights, and how a flat roof compares to a mono-pitched or pitched extension.

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Bifold Doors for Extensions in London

When bifold doors trigger planning permission, structural steel requirements, thermal performance under Part L, conservation area restrictions, and how bifolds compare to sliding and fixed glazing.

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Rooflights and Skylights in London Extensions

Permitted Development rules for rooflights, rooflight types compared, fire escape requirements for loft bedrooms, Building Regulations (Part L, ventilation), and conservation area restrictions.

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Extending a 1930s Semi-Detached House in London

What makes 1930s semis distinctive, the full range of extension options, design approach for sympathetic additions, structural considerations specific to this era, and common issues discovered during works.

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Structural Engineer vs Architect for a London Extension

What each professional does, when you need both, who produces planning drawings vs structural calculations, CDM Principal Designer responsibilities, and whether you can skip the architect on a simpler project.

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Article 4 Directions in London

How Article 4 Directions remove Permitted Development rights, which PD classes are commonly restricted, how to find out if your property is affected, and which London boroughs use them most extensively.

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Loft Conversion Fire Safety in London

Part B Building Regulations requirements for loft conversions — protected staircases, escape windows (0.33m² minimum opening), mains smoke alarms, FD30 fire doors, and when sprinklers are required.

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Neighbour Objections to Planning Permission in London

What counts as a material planning objection, what doesn't, how councils assess and weight objections, when applications go to planning committee, and how to respond to neighbour representations.

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Building Regulations Checklist

The safety safety net. From foul drains to fire doors, what you need to know to get signed off.

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Renovating Period Properties

Why you must use Lime, how to save Sash windows, and honouring the history of your home.

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Basement Excavations

Going underground. Underpinning, waterproofing, and the search for space in central London.

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Adding Value & ROI

The mathematics of renovation. Which projects make money, and which lose it?

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Conservation Areas

Navigating the red tape. Article 4, Heritage Statements, and getting approval.

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Construction Budgeting 2025

Understanding the invisible drivers of cost. Complexity, site access, and specification.

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The Wraparound Extension

Maximising the Victorian L-Shape footprint. The ultimate layout guide.

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Garden Offices

Class E planning rules, insulation, and connectivity for the perfect WFH studio.

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Removing Load Bearing Walls

Structural steels, temporary propping, and open plan safety explained.

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Restoring Drawing Rooms

Cornices, fireplaces, and shutters. The Holy Trinity of Victorian restoration.

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Roof Terraces & Balconies

Overlooking rules, balustrade heights, and waterproofing the warm roof.

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Soundproofing Party Walls

The science of silence: Mass, Damping, and Independent Stud Walls.

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Rewiring & Plumbing

First Fix vs Second Fix, Megaflos, and removing dangerous lead pipes.

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JCT Contracts Explained

Why you need a contract. Retentions, liquidated damages, and disputes.

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The Eco-Retrofit Guide

Fabric First, Heat Pumps, and insulation strategies for a net-zero Victorian home.

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