Mansion Flat Refurbishment London | Tom Harvey
✓ Free, itemised mansion flat quotes across London — response within 24 hours
Mansion Blocks · Portered Buildings · Licence to Alter · London

Mansion flats
refurbished within the rules.

Mansion flats in Kensington, Marylebone, Maida Vale, Battersea and across London are wonderful to live in and particular to refurbish — porters, service lifts, working hours, licences to alter, acoustic flooring and shared services. We know the rules and we plan around them.

Mansion Flat Refurbishment Guide 2026
Cosmetic refurbishment (2-bed) £20,000–£35,000
Full refurbishment (2-bed) £35,000–£70,000
Full refurbishment (3–4 bed lateral) £70,000–£150,000+
Kitchen & bathrooms only £18,000–£40,000
All prices + VAT at 20%
300+
Refurbishments completed
4.8★
Google Rating
10yr+
London experience
Free
Written quotes
The honest answer

What mansion flat refurbishment
really costs in London.

Refurbishing a mansion flat in London costs between £20,000 and £150,000+ + VAT. A cosmetic refurbishment of a two-bedroom flat — kitchen, bathroom, flooring, full redecoration — is typically £20,000–£35,000; a full refurbishment with rewiring, replumbing, replastering and layout changes is £35,000–£70,000. Large lateral apartments with premium finishes run to £150,000+.

The cost drivers are the same as any flat, plus the mansion-block particulars: licence-to-alter fees and surveyor approvals, restricted working hours (often 9–5 weekdays), service-lift bookings, protection of communal areas, acoustic flooring requirements, and shared heating and hot-water systems that limit what can be changed. High ceilings and cornicing also mean more decorating and plastering.

Tom Harvey Contractors provides free site visits and itemised written quotes and handles the practicalities — method statements, insurance, porter liaison, licence-to-alter documentation — so the managing agent has what they need.

Speak to the team today — free advice, no obligation

020 3983 5087
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What's included in our service:

  • Licence-to-alter drawings and specification support
  • Method statement, RAMS and insurance for the block
  • Porter and managing-agent liaison
  • Service-lift bookings and communal protection
  • Working to block hours and noise rules
  • Rewiring and lighting design
  • Replumbing within shared-services constraints
  • Kitchen and bathroom renovation
  • Acoustic underlay and lease-compliant flooring
  • Cornice, ceiling and plaster restoration
  • Full redecoration and bespoke joinery
  • Staged payments and 24-month warranty (over £10k)
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Mansion Flat Refurbishment London Cost

Every mansion flat refurbishment
clearly priced.

Typical ranges for London mansion flats. Every project is quoted after a survey, with block-related costs shown as their own lines.

Cosmetic Refurbishment
£20,000–£35,000
+ VAT · 2-bed · 4–6 weeks
  • Kitchen and bathroom
  • Engineered wood or LVT with acoustic underlay
  • Full redecoration including cornicing
  • Repairs and making good
  • Licence to alter if required
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Lateral Apartment, Premium
£70,000–£150,000+
+ VAT · 3–4 bed · 12–20 weeks
  • Layout reconfiguration
  • Multiple bathrooms and dressing rooms
  • Bespoke kitchen and joinery
  • Air conditioning and smart lighting
  • Restoration of period plasterwork
  • Full project management with the managing agent
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Not sure what you need? Let's talk it through.

Free site visit · Written quote within 48 hours · No obligation whatsoever

How it works

Simple process.
No stress.

Every project follows the same clear process so you always know what's happening and when.

1

Contact Us

Call, email or submit online. Tell us about your mansion flat and what you want to achieve.

2

Free Site Visit

We visit, measure up and assess. No charge, no obligation.

3

Written Quote

Itemised written quote within 48 hours. Every line clearly priced.

4

The Work

Work starts on the agreed date. Done efficiently, cleanly and to the agreed spec.

Handover

Snagging cleared, 12-month warranty confirmed. Job done properly.

4.8 ★
Google · 65 reviews
9.3/10
Checkatrade
1,000+
Jobs completed
£5m
Public Liability
Ltd Co.
No. 16499315
12mo
All work warranted
Why choose Tom Harvey

What makes us
different.

One contractor, every trade

We coordinate every trade ourselves. One contact, one quote, one handover — no juggling.

Fixed price, written quotes

Every quote is itemised and fixed. What we quote is what you pay — guaranteed. No mid-project surprises.

Fast and efficient

We work efficiently without cutting corners. Clear timelines agreed upfront at quote stage.

Supply and fit available

We source materials at trade prices — or we'll work with your chosen supplier. Both options available.

10+ years across London

1,000+ jobs completed. We've worked in everything from mansion flats to Victorian terraces and new-build towers.

Digital invoicing, VAT registered

Professional itemised quotes and VAT invoices — perfect for landlords, agents and property managers.

Ready to get started?

Free site visit · Written quote within 48 hours · No obligation

Where we work

Covering
all of London.

We cover every London borough and Hertfordshire. Here are the areas we work in most regularly.

All London BoroughsKensington W8Chelsea SW3Knightsbridge SW1XMayfair W1Belgravia SW1WNotting Hill W11Holland Park W11Marylebone W1USt John's Wood NW8Hampstead NW3Islington N1Canary Wharf E14Hackney E8Shoreditch EC2Battersea SW11Fulham SW6Clapham SW4Richmond TW9Westminster SW1St Albans AL1

Don't see your area? Call us — we cover all of Greater London

020 3983 5087
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Common questions

Your questions
answered.

A cosmetic refurbishment of a two-bedroom mansion flat costs £20,000–£35,000 + VAT. A full refurbishment with rewiring, replumbing, replastering and new kitchen and bathrooms is £35,000–£70,000. Large lateral apartments with premium finishes and layout changes are £70,000–£150,000+.
A licence to alter is the freeholder's formal consent to works that go beyond decoration — new bathrooms, moving plumbing, changing flooring, structural changes. Most mansion-block leases require one. It involves the freeholder's surveyor reviewing drawings and specification, and fees of £1,500–£4,000. We provide what the surveyor needs and build the timeline into the programme.
Typically weekdays only, 8 or 9am to 5 or 6pm, no noisy work at certain times, service-lift bookings for deliveries, protection of communal carpets and lifts, and a signed method statement with insurance. We work within these on every block and they're priced into the quote.
Usually, with an acoustic underlay that meets the lease's stated standard and sometimes with consent. Some leases require carpet in certain rooms. We check the lease, specify a compliant underlay and supply the data sheet for the managing agent.
Sometimes. It depends on the soil stack positions, the lease, and whether services can be routed without affecting neighbours. Moving a bathroom over a neighbour's living room is usually refused. We'll assess feasibility before you apply for consent.
Often — many mansion blocks have communal heating and hot water from a central plant. That limits changes to radiators and rules out a new boiler, but underfloor heating and bathroom towel rails can usually be added. We work within the system.
A cosmetic refurbishment 4–6 weeks; a full refurbishment 8–12 weeks; a large lateral apartment 12–20 weeks. Block working hours and the licence-to-alter approval add to the timeline, so we plan for them.
Yes — we provide method statements, insurance, RAMS and contact details before starting, liaise with the porter daily, and keep the managing agent informed. Most of our mansion-block work comes from repeat introductions by agents and residents.

Refurbishing a mansion flat? Let's plan it properly.

Free site visit across London · Written quote within 48 hours · No obligation

Request Online

Fill in our quick form and we'll respond within 24 hours.

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Call the Team

Speak directly with us. Mon–Fri 8am–6pm.

020 3983 5087

Email Us

Send photos and details and we'll come back with a ballpark cost.

info@tomharvey.co.uk