How much does a luxury refurbishment cost in London?

Luxury refurbishment costs in London range from approximately £1,500 to £4,000+ per square metre depending on scope and specification. A whole-house refurbishment in Mayfair, Chelsea, or Kensington typically ranges from £750,000 to over £2M. Crown Building provides transparent cost consultancy at the outset of every project. Call 020 3675 3999 for a free consultation.

How long does a full property refurbishment take in London?

A standard whole-house luxury refurbishment in London typically takes 16 to 24 weeks. Complex projects involving structural works, basement extensions, or listed building constraints may take longer. Crown Building provides a detailed programme with fixed milestones at the outset of every project.

Can you work on Grade II listed buildings in London?

Yes. Crown Building is experienced in conservation-standard works to Grade I and Grade II listed properties across London, including conservation areas in Mayfair, Chelsea, Kensington, and Hampstead. We manage all Listed Building Consent applications and work in accordance with Historic England methodology.

Do you handle planning permission and building regulations?

Yes. Crown Building manages all planning applications, permitted development assessments, Listed Building Consent, and Building Regulations submissions on behalf of our clients. We coordinate with local authorities across all London boroughs.

What London areas do you cover?

We work across all London boroughs, with particular experience in Mayfair, Chelsea, Kensington, Knightsbridge, Belgravia, Hampstead, St John's Wood, Highgate, Holland Park, Notting Hill, South Kensington, Mill Hill, and Stanmore. We also work throughout Hertfordshire and the wider South East.

What accreditations does Crown Building hold?

Crown Building holds CSCS, NICEIC (electrical), Gas Safe (gas works), CHAS (health & safety), CITB, and DELTA/Wykamol (waterproofing) accreditations. All projects are delivered CDM-compliant with full public and employer's liability insurance.

Do you offer a free initial consultation?

Yes. Contact Crown Building via our website or call 020 3675 3999 to arrange a free initial consultation with our project team. We will discuss your vision, timeline, and budget to establish the best approach for your project.

Luxury Construction Services London

In Depth Service Guides

Luxury Refurbishment →Prime Residential Contractor →Luxury New Builds →Basement Conversions →Listed Buildings →Commercial Fit Out →Healthcare & Specialist →

New Build Residential London

Ground up luxury private homes from concept through to handover across London, Mayfair, Hampstead, St John's Wood, and the Home Counties. We deliver full design and build or contractor only roles, with structural, M&E, joinery, and finishes all coordinated under one contract.

What's Included

✓Architectural design and technical delivery
✓Structural engineering and site management
✓M&E coordination and certification
✓Specialist joinery and bespoke finishes
✓Planning, Building Regulations, and CDM management

Who It's For: Private clients, developers, and institutional partners seeking architecturally distinctive new residential construction with full design control and transparent delivery.

Luxury new build residential property in London by Crown Building

Luxury Refurbishment London

Full or partial luxury renovation of existing residential properties to ultra premium specification, Chelsea, Belgravia, Kensington, and beyond. We manage complex projects on occupied properties with detailed phasing plans and full consideration for adjacent neighbours.

What's Included

✓Full space planning and interior design coordination
✓Structural assessment and strengthening where required
✓Complete M&E upgrade with modern systems
✓Phasing plans for occupied / adjacent properties
✓Premium material specification and sourcing

Who It's For: Homeowners seeking transformative renovations with no compromise on quality, timeline certainty, and management of complexity in busy London neighbourhoods.

Luxury property refurbishment in Chelsea London by Crown Building

Basement & Subterranean Works

Structural lowering, new build basements, and underpinning with DELTA and Wykamol certified waterproofing. We work on both listed and unlisted properties with full party wall coordination and structural integrity.

What's Included

✓Structural lowering and underpinning design
✓DELTA and Wykamol certified waterproofing systems
✓Party wall awards and neighbour liaison
✓Temporary works, shoring, and ground support design
✓Complete fit out (cinema, gym, wine cellars, etc.)

Who It's For: Homeowners expanding existing properties downward, or those seeking specialist basement fit outs with guaranteed structural safety and premium finishes.

Luxury basement conversion and cinema room London by Crown Building

Commercial Fit Out

Category A and Category B office, retail, and hospitality fit outs delivered as CDM compliant principal contractor. We manage phased and live environment projects with minimal disruption and full regulatory compliance.

What's Included

✓Category A and Category B project delivery
✓CDM compliant principal contractor management
✓Phased delivery on occupied / live environments
✓M&E coordination and systems commissioning
✓Full compliance with building regulations and statutory bodies

Who It's For: Businesses, property developers, and landlords requiring expert fit out delivery with absolute certainty, regulatory compliance, and seamless execution.

Premium commercial office fit-out London by Crown Building

Bespoke Joinery London

Bespoke joinery, fitted furniture, feature staircases, and specialist finishes delivered independently or as part of a wider contract. We work from designer led specs or develop designs in house.

What's Included

✓Bespoke joinery design and fabrication
✓Custom kitchens, wardrobes, and cabinetry
✓Feature staircases and architectural elements
✓In house design team or designer led specifications
✓Premium material sourcing and installation

Who It's For: Clients seeking exceptional bespoke joinery and interior finishing, whether as standalone projects or integrated with broader construction works.

Bespoke luxury joinery and oak library London by Crown Building

Listed Building Contractor London

Conservation standard works to Grade I and Grade II listed properties across London, Mayfair, Holland Park, Notting Hill, and conservation areas throughout the city. Using lime mortars, traditional materials, and specialist tradespeople. All works aligned with Historic England methodology.

What's Included

✓Conservation expertise and Historic England alignment
✓Specialist lime mortars and traditional materials
✓Period trained specialist tradespeople
✓Listed Building Consent and planning support
✓Structural integrity and conservation compliance

Who It's For: Owners of period properties and listed buildings seeking expert conservation works that preserve heritage value whilst delivering modern functionality.

Heritage and listed building restoration London by Crown Building

Healthcare & Specialist Environments

Clinical, medical, and wellness fit outs with infection control protocols, validated M&E systems, and full compliance with HTM standards. We are a main contractor that carries the entire process through to a finished environment ready for CQC registration and inspection, and we deliver in occupied healthcare settings. Read our full healthcare and specialist environments guide.

What's Included

✓HTM standards compliance and healthcare regulations
✓Infection control protocols and validated systems
✓Specialist M&E design and commissioning
✓Occupied healthcare environment project delivery
✓CDM compliant project management and safety

Who It's For: Healthcare providers, medical clinics, and wellness facilities requiring expertly delivered fit outs with strict compliance, safety, and operational continuity.

Healthcare facility construction London by Crown Building

Contract Values & How We Price

Commissions delivered to date range from £120,000 to £7m: single room joinery through to new build private residences and multi floor commercial fit outs. Our teams and supply chain carry the capacity to deliver contracts of up to £25m.

Every tender is issued as a fully itemised contract sum, so you can see exactly what each element costs before committing. We would rather lose a tender on transparency than win one on an optimistic figure that unravels into variations.

What's Included

✓Fully itemised contract sums at tender: no lump sum guesswork
✓JCT, NEC and RIBA contract forms, design and build or traditional
✓Transparent variation pricing agreed before work proceeds
✓Long lead procurement priced against the programme, not progress
✓Monthly valuations and cost reporting throughout

Who It's For: Private clients, family offices and commercial occupiers who want the contract sum understood and agreed before work begins, and reported against every month until completion.

Crown Building team reviewing drawings and contract pricing, London

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Prime Construction Services Across London

New Build Residential London

What's Included

Luxury Refurbishment London

What's Included

Basement & Subterranean Works

What's Included

Commercial Fit Out

What's Included

Bespoke Joinery London

What's Included

Listed Building Contractor London

What's Included

Healthcare & Specialist Environments

What's Included

Contract Values & How We Price

What's Included

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