Basements24 posts
Basements in the journal.
Digging under a London house. Waterproofing, pumps, party walls and cost.
BasementsNewest first
All 24.
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3 min read
Daylight in a London basement
A basement feels like a living floor when daylight is planned with the structure. How lightwells, rooflights and glass work in a London home.
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3 min read
Basement waterproofing and pumps in London
What keeps a London basement dry. Waterproofing as one coordinated design, when pumps are needed, alarms, servicing and costs.
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5 min read
The real cost of a London basement
What a London basement actually costs in 2026. Shell against fit out, what sits outside the build rate, fees, contingency and the hidden risks.
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3 min read
Basement extensions in London: before you dig
Everything London homeowners need to know about basement extensions. Planning, costs, party walls, and construction advice from NU Projects.
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3 min read
Basement ideas for 2026 in London
Where London basement design is heading in 2026. Wellness rooms, cinemas, work studios, daylight and lower running costs.
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3 min read
Basement companies in London: what to ask
How to compare London basement companies on their documents rather than their sales pitch. Surveys, waterproofing, temporary works and the quote.
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1 min read
Basements to roof terraces: adding value
How basements and roof terraces add space in London’s prime postcodes. Cinemas, wellness suites, outdoor rooms and what they add in value.
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2 min read
10 questions before building a basement
Ask these 10 questions before appointing a London basement contractor, covering experience, planning, structure, waterproofing, cost and aftercare.
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3 min read
Digging a basement in Kensington and Chelsea
What Kensington and Chelsea allows under a house. Policy CL7, one storey, half the garden, and the traffic plan every application needs.
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2 min read
3 reasons to dig a basement in London
Three reasons to dig a basement under a London home. How it gains space without losing the garden, and what it does for value.
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2 min read
A basement as an investment in West London
Why West London owners dig down instead of moving. What a basement gives you, and what decides whether it pays for itself.
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2 min read
Adding a basement to a West London home
Why West London owners dig down instead of moving. What a basement adds in Fulham or Chelsea, and how the build actually works.
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1 min read
Architects: NU on kitchens, lofts, basements
What an architect gets from NU Projects as the contractor. Estimating from your drawings, an in-house surveyor, and one team on site.
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6 min read
Basement specialists in Fulham and Chelsea
A guide to basements in Fulham, Chelsea and South Kensington. Planning, structure, waterproofing, party walls, ground conditions and fit out.
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1 min read
Turn key design and build in Chelsea
Turn key design and build for Chelsea and South Kensington. Interior design, architecture, project management, extensions and basements.
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2 min read
Adding value to a Kensington home
Ways to add value to a Kensington and Chelsea home. Loft conversions, new build basements, kitchen extensions and remodelling all weighed up.
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3 min read
Planning a basement conversion in London
Plan a London basement properly: permissions, surveys, structure, waterproofing, party walls, MEP, costs, programme and contractor checks.
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3 min read
Basement conversion: a step by step guide
The stages of a West London basement conversion. Surveyor visit, contract, design and planning, party wall agreement and the build.
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3 min read
Basements, the facts to know
What a basement conversion involves in London. How the budget is built up, what party walls add, and how to light a floor with no windows.
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4 min read
Fulham basements
Why London’s wealthiest homeowners dig down, told through the numbers. The rise in high net worth residents and what it did to basements.
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2 min read
4,650 London basements in a decade
A study counting 4,650 basements approved under London homes from 2008 to 2017. The pools, gyms and cinemas, and how deep they go.
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1 min read
Why build a basement
Two reasons to dig a basement, explained by our founder in Fulham. The rooms owners put underground, and what a new floor adds.
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2 min read
Pros and cons of building a basement
The case for and against digging a basement under a London house. Cost, added value, disruption and the checks to make before you commit.
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2 min read
The process of building a basement
What happens on a basement build, in order. The consultation, the survey, planning, the party wall award, the dig and the fit-out.
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