Flat Refurbishment Marylebone

Flat refurbishment is the main refurbishment work in Marylebone, where the VOA figures for the wider Marylebone & Park Lane and Bryanston & Dorset Square statistical areas put 92% of homes as flats. They sit in mansion blocks, in Georgian townhouses divided long ago, and in post-war and newer blocks, and each kind brings its own lease terms, managing agent and house rules. Refurbishing a Marylebone flat means renewing wiring, heating, kitchen and bathroom inside the flat's own walls, with the building's consent, and without disturbing the neighbours above and below.

For Marylebone, published UK averages put a full flat refurbishment at £33,000 to £48,000 and a basic one, with budget kitchen and bathroom fittings, at £15,000 to £18,000, and London flats usually cost more (Checkatrade and MyJobQuote, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Marylebone: we refurbish the flat within the terms of your lease and licence to alter, protect the common parts throughout, and a registered electrician certifies the new consumer unit and circuits.

The kinds of Marylebone block a flat refurbishment happens in

Marylebone is known for mansion blocks and Georgian townhouses. In the VOA figures for the wider Marylebone & Park Lane and Bryanston & Dorset Square areas, 92% of homes are flats. By age, 54% were built before 1919, 16% between 1919 and 1939 and 29% after 1945, with 11% built in 2000 or later. A flat in a divided townhouse has timber floors, a shared stair and no lift. A mansion block flat may have a lift, a porter and a service entrance. A post-war or newer flat may well sit on concrete floors.

The block type sets the method. On timber joists, cables and pipes run between the joists and the ceiling below belongs to your neighbour, so every lift of a board is planned. On a concrete slab, new routes are chased into screed or run in a raised floor or boxing, and core drilling needs the managing agent's approval. Inside the flat we renew the consumer unit and the wiring, certified by a registered electrician, and the boiler or electric heating, with gas work done by a Gas Safe engineer.

Housing in Marylebone

On the valuation list Marylebone counts about 12,620 homes, 92% flats and 8% houses; 54% predate 1919, 16% are interwar and 29% post-war.

Lease consent and Westminster's construction code for a Marylebone flat

Before any work starts in a Marylebone flat, read the lease. Where it needs the freeholder's or managing agent's written licence to alter for anything beyond decoration, the agent will want drawings, a method statement and the contractor's details first. Block rules then fix the working hours, which can be tighter than the council's, as well as lift bookings, protection of common parts and where waste can leave the building. We prepare the method statement and programme the agent asks for, and plan around the reply time.

A small Marylebone flat job is likely to sit in the lightest tier of Westminster's Code of Construction Practice. The 2026 code was approved in March 2026 and applies to new sites from 1 June 2026 and existing sites from 1 September 2026, and small Level 4 projects follow its principles with no formal approval, monitoring or fees. The full code is for major sites and basement schemes. We read those principles as a named contact for neighbours, dust control while cutting and quiet handling of waste on the common stairs.

Floors, leaks and fire safety inside a Marylebone block

Hard floors and wet rooms are where a Marylebone flat refurbishment affects the neighbours. Where a lease requires carpet or a specified acoustic underlay, swapping to timber or tile means an acoustic layer under the new floor, detailed to the level the lease or the agent sets. A new kitchen or bathroom inside the existing footprint needs its waste connections and tanking right first time, because a leak lands in the flat below. Where that work is notifiable, such as new drainage or ventilation outside a competent person scheme, Westminster charges it as a minor works item. We pressure test pipework before the floor goes down.

Fire safety in a block is shared. Under the Fire Safety Order, the flat entrance door and the compartment walls and floors around a flat are matters for the freeholder or the responsible person, so changes to them go through the agent. A new front door or a fresh opening into the common stair therefore waits for the agent's written approval. If your block is a higher-risk building under the Building Safety Act, building control sits with the Building Safety Regulator, except for work done under a competent person scheme, and your designer confirms the route before we start.

Refurbishing a let Marylebone flat for MEES and selective licensing

A Marylebone landlord refurbishing between tenancies has energy rules to meet. Since 1 April 2018 a domestic property cannot be let on a new tenancy with an EPC rating of F or G unless an exemption applies, and since 1 April 2020 that bar covers continuing lets too. Local authorities enforce it, with fines up to a set maximum per property. In a flat the usual measures are heating controls, a more efficient boiler or electric heaters, lighting and secondary glazing where the lease and the building allow.

Westminster's Selective Licensing Scheme has been in effect since 24 November 2025 and requires privately rented homes not already licensed as HMOs to hold a licence in 15 wards. Designation No. 1 runs to 23 November 2030 unless revoked earlier. If your Marylebone flat is in a designated ward, the landlord applies for the licence and any conditions set the standard. We carry out the works the licence or an inspection asks for and hand over the records, so the flat can be relet without delay.

• Consumer unit replacement from the meter onwards
• Rewires inside the flat, signed off at the end by a registered electrician
• Boiler replacement on the flue route the building allows, by a Gas Safe registered engineer

VOA Council Tax stock of properties, March 2025, for Marylebone & Park Lane and Bryanston & Dorset Square. Counts rounded by the VOA.

People planning flat refurbishment in Marylebone may also want bathroom renovation in Marylebone, flat refurbishment across Westminster, London builders who work inside occupied blocks, fitting a new kitchen inside the flat footprint, our London flat refurbishment page and Painting and Decorating Cost.

Why Choose GS Renovation in Marylebone

Refurbishing a flat is as much about the building as the rooms. We send your managing agent the method statement, programme and contractor details it asks for, book the lift and protect the common parts, and fit our noisy work to the tighter of the block's hours and Westminster's. Inside the flat we renew the wiring, heating, kitchen, bathroom, floors and finishes in one programme, and leave the certificates and acoustic floor details ready for the agent, a letting or a sale.

• Rated 4.9 from 31 reviews on MyBuilder
• Consumer unit and circuits certified by a registered electrician at completion
• Fire doors and compartment lines left as the building's fire strategy needs them

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254).