Guides
Building guides
Plain-English answers to the questions homeowners ask before an extension, loft conversion or new build: cost, planning, building regulations, party walls and VAT.
How much does a house extension cost in 2026?Guide prices for single and double-storey extensions per square metre, what pushes the cost up, and how regional prices differ across the UK.Read the guide
Do I need planning permission for an extension?How permitted development works for extensions in England, the main size limits, when you must apply, and how the rules differ in Wales, Scotland and Northern Ireland.Read the guide
What building regulations apply to an extension?The parts of the building regulations that affect extensions and loft conversions, how inspections work and who signs the work off.Read the guide
When do I need a party wall agreement?How the Party Wall etc. Act 1996 works in England and Wales, the notice periods, what a party wall surveyor does, and the position in Scotland and Northern Ireland.Read the guide
Which type of loft conversion is right for my house?Rooflight, dormer, hip-to-gable, mansard and bungalow loft conversions compared: space gained, planning, cost and suitability.Read the guide
How much does a loft conversion cost?Guide prices for rooflight, dormer, hip-to-gable, mansard and bungalow loft conversions, and the extras that change the price.Read the guide
Can I convert my garage, and what will it cost?Planning, building regulations, costs and timescales for converting an integral or attached garage into a room.Read the guide
How long does an extension take to build?Realistic timescales for design, approvals and building an extension or loft conversion, stage by stage.Read the guide
Single or double-storey extension: which is better value?How single and double-storey extensions compare on cost per square metre, planning, disruption and the space you gain.Read the guide
Orangery, conservatory or extension: what’s the difference?How orangeries, conservatories and extensions differ in construction, comfort, building regulations and cost.Read the guide
Can I remove a load-bearing wall?How load-bearing walls are removed safely with steel beams, the approvals needed, cost and timescales.Read the guide
Do I pay VAT on building work?When building work is standard-rated, reduced-rated or zero-rated for VAT, including extensions, conversions and new homes.Read the guide
How do I build a new home on my plot?The steps from plot appraisal to completion for a one-off new home: planning, design, warranty, finance and build.Read the guide
How do planning and building rules differ in Scotland, Wales and Northern Ireland?The main differences in permitted development, building control and party wall law across the four UK nations.Read the guide
How do I choose a builder for an extension?What to look for in a builder, what a written quote and contract should include, and how stage payments normally work.Read the guide
Is a basement conversion worth it?Cellar conversions versus new basements: waterproofing, planning, party walls, cost and timescales.Read the guideStart with a free home visit
Call 0800 088 6248 or get an instant guide price online.