House Extensions

The Economics of Space

In the London property market, square footage is the primary currency of value. An extension is rarely an "expense"—it is a strategic asset reallocation. Because the capital's demand for residential volume far outstrips supply, the market value of a newly created room consistently eclipses the cost of its construction.

We don't just build extensions; we engineer equity. Our architectural approach focuses on the "Value-Add Delta"—ensuring that every pound invested in high-spec construction yields a disproportionate return in your home's total market valuation.

Investment Performance: A Typical Case Study

Asset Entry Value £750,000
Strategic Investment £70,000
Post-Build Valuation £900,000

Yield Analysis

A 214% Return on Investment (ROI) on construction capital.

+ £80,000 Net Equity

Light-Filled Architecture

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Modern London Living

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A Focus on Quality

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Seamless Integration

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Bespoke Craftsmanship

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Architectural Excellence

Light-Filled Architecture · Modern London Living · A Focus on Quality · Seamless Integration · Bespoke Craftsmanship · Architectural Excellence

Loft Conversion (Dormer)
London Est. Cost £55,000 – £120,000
Build Time 8 – 12 Weeks
Route GPDO / Permitted Dev
  • Space without Sacrifice: Create a luxury master suite without losing an inch of your garden.
  • Minimal Disruption: Most work is scaffold-based and external, keeping your home life peaceful.
  • Highest ROI: Statistically the best way to increase a London property's market value.
Side Return Extension
London Est. Cost £55,000 – £90,000
Build Time 10 – 14 Weeks
Route Full Planning / GPDO
  • Unlocks Dead Space: Transforms narrow, unused alleyways into expansive living areas.
  • Kitchen Transformation: Ideal for Victorian terraces to create that sought-after wide kitchen island layout.
  • Light-Filled: Perfect for glass-roof features that bring natural light into the core of the house.
Two-Storey Rear Extension
London Est. Cost £110,000 – £290,000
Build Time 16 – 24 Weeks
Route Full Planning
  • Double the Impact: Add both a massive kitchen/diner and an extra bedroom with ensuite upstairs.
  • Cost Effective: Lower cost per square metre compared to building two separate extensions.
  • The "Forever Home" Fix: The ultimate solution for growing families who don't want to move.
Single-Storey Rear Extension
London Est. Cost £60,000 – £135,000
Build Time 10 – 16 Weeks
Route GPDO / Permitted Dev
  • Indoor-Outdoor Living: Perfectly designed for bi-fold doors and seamless garden integration.
  • Open-Plan Living: Removes cramped internal walls to create a modern, social heart of the home.
  • Fast Approval: Many designs qualify for Prior Notification, avoiding the lengthy full planning process.
Extension Type London Cost Timeframe Value Added
Loft Dormer £55k - £120k 8-12 wks 15-20%
Side Return £55k - £90k 10-14 wks 5-10%
Two-Storey £110k - £290k 16-24 wks 15-20%
Single-Storey £60k - £135k 10-16 wks 10-15%
Before After
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Your home has hidden potential—we’re here to unlock it. Get in contact with us today.