Greenwich, Greater London

Home Extensions in Greenwich

Whether it’s a small update or a full home extension in Greenwich and nearby Greater London, we match you with the right local specialist and handle the vetting for you, so you deal only with people you can trust.

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What can we help you with?

Free · no obligation · about 30 seconds

Typical Greenwich cost£25,500–£89,500
Typical timeline3–6 months
Our fee to youFree

Popular options

Home Extensions styles & ideas in Greenwich

Explore common options — then we’ll match you with a Greenwich specialist to bring it to life.

Single-Storey Rear Extension

Extends the back of the house for open-plan living.

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Side Return Extension

Fills the narrow gap at the side to widen your space.

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Wraparound Extension

Combines side and rear for a large L-shaped living area.

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Over-Structure Extension

Builds a new room above an existing single-storey part.

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How much does a home extension cost in Greenwich?

A typical Greenwich home extension works out at about £25,500–£89,500 in 2025. London is the most expensive part of the UK for building work, well above the national average — Greater London labour and materials are a real factor. Price comes down to single vs double storey and floor area, foundations and structural work and planning, glazing and finish quality more than anything else. Getting two or three quotes is the best way to see a fair local price, which is exactly what our free matching service arranges.

Figures are a 2025 guide only — your matched installer will give you an accurate, no-obligation quote.

How long does it take?

Typical Greenwich home extensions timescales run to about 3–6 months on site.

  • Check planning permission. Most larger projects need planning and building-regs approval — check early.
  • Plan for the long term. Design for how you’ll use the space in five and ten years, not just now.
  • Set a clear budget. Allow a 10–15% contingency for unforeseen costs during the build.

How it works

Our Working Process

Our hassle-free process takes you from enquiry to the perfect installer for your home extensions in Greenwich.

1

Fill in Our Form

Tell us what kind of project you’re planning, and your contact details.

2

Introductory Call

We’ll give you a quick call to learn more about what you need and with what budget.

3

We Match You Up

We match you with an approved installer who fits your project requirements.

Local guide

Home Extensions in Greenwich: the 2025 guide

Why a home extension makes sense in Greenwich

Demand for quality home improvement in Greater London keeps growing, and a home extension in Greenwich can transform how you use your space. A well-built extension typically adds both significant living space and long-term property value.

Planning your home extension in Greenwich

Think through how you’ll use the space long term, agree a written scope and schedule, and check insurance and guarantees — the fundamentals that keep a Greenwich project on track.

Local know-how for Greenwich

The housing across Greater London spans Victorian and Georgian terraces, flat conversions and new-build apartments on tight urban plots. That mix shapes how a home extension is approached here — party-wall agreements, borough-specific planning and widespread conservation areas all apply. A local specialist who knows Greenwich will factor all of this into your quote and design.

Choosing the right Greenwich professional

Our free service exists to make this simple. Tell us about your home extension in Greenwich, and we’ll introduce you to a trusted local pro suited to your project and budget — because the installer pays us, not you.

Vetted network

Trusted Greenwich home extensions specialists

We don’t just find you an installer — we find the right one. Every professional we introduce is vetted for experience, qualifications, insurance and a proven track record.

Local Extension Specialist

Professional · Qualified · Insured

Local Project Manager

Professional · Qualified · Insured

Local Planning Expert

Professional · Qualified · Insured

Greenwich questions

Home Extensions in Greenwich — FAQs

The details on cost, timing and how our free matching works in Greenwich.

How much does a home extension cost in Greenwich?
A typical Greenwich home extension works out at about £25,500–£89,500 in 2025. London is the most expensive part of the UK for building work, well above the national average — Greater London labour and materials are a real factor. Price comes down to single vs double storey and floor area, foundations and structural work and planning, glazing and finish quality more than anything else. Getting two or three quotes is the best way to see a fair local price, which is exactly what our free matching service arranges.
How long does a home extension take in Greenwich?
Typical Greenwich home extensions timescales run to about 3–6 months on site. Your matched installer will give you a firm schedule once they’ve seen the project.
Do I need planning permission for a home extension in Greenwich?
It depends on the size and type of project and your property. Tight sites, party-wall agreements with neighbours and borough-specific planning rules make an experienced local specialist especially valuable. Your matched Greenwich specialist will tell you exactly what applies and can handle approvals for you.
Is Renomate’s home extensions matching service free in Greenwich?
Yes — it’s completely free for homeowners in Greenwich and across Greater London. We’re paid a small fee by the installer only once your project is confirmed, so we always work in your interest.
How do you choose home extensions professionals in Greenwich?
Every professional we introduce in Greenwich is vetted for experience, qualifications, insurance and customer feedback. We check the details so you deal only with trusted, proven local specialists.

Start your Greenwich project

Free, friendly, no obligation.

  • 100% Free Service
  • No Hidden Fees
  • Friendly, Expert Support
  • Installers Pay Us, Not You

Nearby

Home Extensions across London

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Ready when you are

Ready for your home extensions in Greenwich?

From fresh ideas to trusted installers, we’re here to get your home renovation project moving—quick, simple, and stress-free.

Get my free quote 01952 928 231
Get a free quote