Guides and cost breakdowns
Real South London numbers, planning rules and build timelines — written by the team that does the work, not a content agency.
- Can Your Loft Be Converted? The Measurement, the Roof Type and the Staircase
Can your loft be converted? Measure the head height, tell a cut roof from a trussed one and find where the stairs land. Below 2.2m it gets hard. Check yours.
- London Clay, Trees and Foundations: Why Two Identical Extensions Can Cost £15,000 Apart
Foundation depth on London Clay starts at 1m and can pass 2.5m near trees, so the same extension can cost £15,000 more a mile away. Read this before you budget.
- Party Wall Notices in South London: The Delay Nobody Puts in the Programme
Party wall notices in South London take six to twelve weeks and cost up to about £3,500 per neighbour. See which notice you need and who pays. Read the guide.
- Permitted Development in South London: The Streets and Estates Where You've Lost It
Permitted development in South London is removed on many streets, including eight Wandsworth estates under Article 4. Learn how to check your address today.
- 16 Weeks of a Side Return Extension: What Happens, Week by Week
Side return extension timeline: all 16 weeks of a Victorian side return in South London, from strip-out to handover. See what happens each week and when.
- How much does a loft conversion cost in London? (2026 guide)
Loft conversion cost London 2026: real price ranges for Velux, dormer, hip-to-gable, mansard and L-shaped conversions, plus party wall and hidden costs.
- Rear extension vs side return vs wrap-around: which is right for your London terrace?
Which extension type is right for your London terrace? Honest 2026 comparison of rear, side return and wrap-around — costs, planning, and real-world tradeoffs.
- Side return extension cost in London: a 2026 breakdown for terrace owners
Side return extension cost London 2026: full breakdown for Victorian and Edwardian terraces, including party wall, structural and finish costs.
- How Much Do Architects Drawings for a Loft Conversion Cost in South London?
Architect drawings for a loft conversion in South London cost £4,800 to £10,000 for planning and building regulation drawings. See what drives the price.
- 3 Reliable architectural services in Clapham
Planning an extension or loft in Clapham? AXE Construction helps with planning, drawings, the structural engineer and party wall in one place. Get a free quote.
- Top 3 Architectural services Streatham
Architectural help for extensions and lofts in Streatham: AXE Construction handles planning, drawings, the structural engineer and party wall. Get a free quote.
- How Much Does a Basic Loft Conversion Cost in South London?
A basic loft conversion in South London costs £25,000 to £55,000, depending on size, the state of the loft and the finishes you choose. Read the full guide.
- Bungalow Loft Conversion Cost in South London?
A bungalow loft conversion in South London costs £40,000 to £75,000. See how size, style, fittings, design and planning fees change the price. Read the guide.
- How Much Does a Dormer Loft Conversion Cost in South London?
A dormer loft conversion in South London costs £35,000 to £75,000. See how the size, dormer type, style, drawings and labour change the price. Read the guide.
- How Much Does a Hip-to-Gable Loft Conversion Cost in South London?
A hip-to-gable loft conversion in South London costs £65,000 to £90,000. See how roof type, intended use and planning affect the price. Read the full guide.
- How Much Does a Loft Conversion Cost for a Victorian Terrace in South London?
A loft conversion on a Victorian terrace in South London costs £27,000 to £90,000. See how loft size, conversion type, finishes and labour set the final price.
- How Much Does a Loft Conversion Cost On a 2-bed Semi in South London?
A loft conversion on a 2-bed semi in South London costs £30,000 to £50,000. See how conversion type, design, insulation and windows change it. Read the guide.
- How Much Does a Loft Conversion Cost on a 2-Bed Terrace in South London?
A loft conversion on a 2-bed terrace in South London costs £50,000 to £70,000. See the design, planning and build costs, and how to bring them down. Read more.
- How Much Does a Mansard Loft Conversion Cost in South London?
A mansard loft conversion in South London starts at £50,000 to £80,000. See how structural changes, planning and architect fees affect the price. Read more.
- How Much Does Planning Permission Cost for a Loft Conversion in South London?
Planning permission for a loft conversion in South London costs £250 to £450 in fees, plus about £1,000 to £2,500 for drawings. See what else adds up.
- Questions to ask a builder when building a house extension
Questions to ask a builder before a house extension: accreditation, years in business, past projects, quotes, insurance and project management. Read the list.
- Trusted Roofers in Streatham
Roofers in Streatham for roof repairs, new roof installation and routine maintenance, from emergency leaks to work tailored to each home. Get a quote from us.
- How Much Does Scaffolding Cost for Loft Conversion in South London?
Scaffolding for a loft conversion in South London costs £300 to £500 a week. Compare mobile scaffolding, aluminium towers and trestles for your job. Read more.
- How Much Does a Small Loft Conversion Cost in South London?
A small loft conversion in South London costs £15,000 to £25,000. See what pushes the price up, budget-friendly tips and what you can DIY. Read the full guide.
- How Much Does a Structural Engineer Cost for Loft Conversion in South London?
A structural engineer for a loft conversion in South London costs £2,000 to £3,500. See how location, hourly rates and site visits set the fee. Read the guide.
- How Much Does a Velux Loft Conversion Cost in South London?
A Velux loft conversion in South London costs £19,000 to £37,000 on average. See how attic size, windows, fixtures and labour set the price. Read the guide.
- Premier Loft Boarding in Streatham
Loft boarding in Streatham that turns an unused attic into a functional space without compromising the existing structure, tailored to your home. Get a quote.