LONDON RENOVATION BUDGET PLANNING
Renovation Cost Guides for London Homes.
Explore practical Growchance cost guides for full renovations, kitchens, bathrooms, extensions, loft conversions, structural work, flooring and finishing trades.
Cost ranges and calculator results provide initial planning guidance. Final scope and pricing depend on the property, specification and conditions found on site.
CHOOSE THE PART OF YOUR PROJECT TO PLAN
ILLUSTRATIVE PLANNING PREVIEW
START WITH YOUR PROJECT
What are you planning to renovate?
Different projects need different budgets. Choose the guide that most closely matches the work you are considering rather than relying on one general renovation figure.
Each guide explains its own scope, likely cost range, allowances and important exclusions.
Full House Renovation Cost Guide
Plan a coordinated renovation involving several rooms, building services, preparation work and final finishes across a house.
Explore Full House Renovation CostsFlat Renovation Cost Guide
Understand the budget considerations for renovating a London flat, including access, shared buildings, layout work and service upgrades.
Explore Flat Renovation CostsHouse Extension Cost Guide
Compare the principal budget considerations for rear, side-return, wraparound and other house-extension projects in London.
Explore House Extension CostsLoft Conversion Cost Guide
Review costs for rooflight, dormer, hip-to-gable and mansard conversions, including structure, stairs and internal finishing.
Explore Loft Conversion CostsStart with the guide covering the largest part of the proposed work. More focused kitchen, bathroom, structural, flooring and finishing guides follow below for individual parts of a renovation.
KITCHENS AND BATHROOMS
Plan the rooms with the most moving parts.
Kitchen and bathroom budgets depend on more than the visible products. Preparation, plumbing, electrics, ventilation, waterproofing and finishing can all affect the final scope.
Start with the complete room guide, then use the more focused guides where you need additional detail about a particular trade.
Kitchen Renovation Cost Guide
Review the likely budget for a supplied-and-installed London kitchen, including removal, units, worktops, appliances, installation and associated finishing work.
Explore Kitchen Renovation CostsBathroom Renovation Cost Guide
Understand complete bathroom-renovation costs, from removal and preparation through plumbing, sanitaryware, waterproofing, tiling, electrics and final installation.
Explore Bathroom Renovation CostsBathroom Tiling Cost Guide
Compare labour, preparation and material considerations for standard tiles, large-format products, mosaics and patterned bathroom installations.
Explore Bathroom Tiling CostsBathroom Waterproofing Cost Guide
Review the cost of tanking shower areas and bathrooms, including membrane coverage, corners, junctions, pipe penetrations and preparation before tiling.
Explore Waterproofing CostsThe tiling and waterproofing guides explain individual parts of bathroom work. They should not be added mechanically to the complete bathroom range because some preparation and installation allowances may already be included.
STRUCTURAL WORK AND APPROVALS
Budget beyond the visible building work.
Structural alterations can involve more than demolition and installation. Engineering, temporary support, steelwork, inspections, Building Control and making-good may all affect the budget.
Use the dedicated guides below for load-bearing wall work and the focused Building Control notice fees covered by Growchance.
Load-Bearing Wall Removal Cost Guide
Review the principal costs involved in creating a structural opening, including engineering, temporary support, steel installation, Building Control and associated making-good.
Explore Load-Bearing Wall CostsBuilding Control Fees for Small Structural Alterations
Understand the Building Control notice fees relevant to load-bearing wall work and smaller alterations. This is focused guidance rather than a general schedule covering every type of building project.
Review Building Control FeesBuilding Control fees, structural-engineer charges, construction work, steelwork, waste removal and final making-good are separate cost elements. Use the load-bearing wall guide for the wider project budget and the Building Control page for its narrower fee purpose.
FLOORING COST GUIDES
Compare the floor before choosing the finish.
Flooring costs depend on the selected material, installation pattern, subfloor condition, preparation and the shape of the rooms.
Use the broad guide for an initial comparison, then open the material-specific guide for more detailed fitting and preparation information.
Flooring Installation Cost Guide
Compare typical installation considerations across laminate, LVT, engineered wood, solid hardwood and patterned flooring, including removal, subfloor preparation and additional work.
Explore Flooring Installation CostsLaminate Flooring Fitting Cost Guide
Review laminate fitting costs, underlay, trims, preparation, straight-lay installation and patterned-layout considerations.
Explore Laminate Fitting CostsLVT Flooring Installation Cost Guide
Compare click and glue-down LVT costs, including levelling, moisture considerations and the preparation required for a consistent finished surface.
Explore LVT Installation CostsEngineered Wood Flooring Fitting Cost Guide
Review fitting methods, preparation, patterned layouts and the additional work that can affect an engineered-wood flooring budget.
Explore Engineered Wood CostsSolid Hardwood Flooring Fitting Cost Guide
Understand solid-hardwood fitting costs, fixing methods, acclimatisation, subfloor requirements and product-specific suitability considerations.
Explore Solid Hardwood CostsWALLS, CEILINGS AND FINISHES
Plan the preparation as well as the finish.
Painting and plastering prices depend heavily on the condition of the existing surfaces. A room that appears similar in size can require a very different amount of preparation.
Use each guide for its own trade and avoid assuming that major plaster repairs are automatically included in standard decorating.
Painting and Decorating Cost Guide
Review residential interior and exterior painting costs, including standard preparation, walls, ceilings, woodwork, doors, windows and the factors that affect a decorating quotation.
Plastering Cost Guide
Compare plastering costs for walls, ceilings, skimming, preparation, plasterboard work and more extensive repair requirements in London homes.
Minor filling and normal surface preparation may form part of decorating work, but full skimming, damaged plaster replacement, plasterboarding and major repairs should be assessed separately. Check the inclusions in the relevant guide before combining budgets.
FREE PROJECT CALCULATORS
Turn measurements into a first planning estimate.
Use the Growchance calculators to estimate quantities, materials or an initial labour range for selected renovation and finishing work.
You can review the initial result before deciding whether to send the project details to Growchance.
Kitchen Installation Calculator
Build an initial kitchen-installation estimate using the units, worktops, services and project options relevant to the proposed work.
Use the Kitchen CalculatorBathroom Renovation Calculator
Estimate a bathroom-renovation range using room details, sanitaryware, tiling, preparation and selected installation requirements.
Use the Bathroom CalculatorTile and Tiling Calculator
Calculate the tiled area, deductions, wastage and tile quantity, with an optional labour estimate for the selected tiling work.
Use the Tiling CalculatorFloor Installation Calculator
Add multiple floor areas, allow for wastage, calculate complete packs and include an optional flooring-labour estimate.
Use the Flooring CalculatorPainting Calculator
Measure walls and ceilings, subtract openings, estimate paint quantities and add an optional decorating range where required.
Use the Painting CalculatorPlastering Cost Calculator
Measure walls and ceilings, select the principal plastering treatment and review an initial ex-VAT and VAT-inclusive planning range.
Use the Plastering CalculatorMeasurements, preparation, product suitability, access, hidden conditions and the final scope must be confirmed before materials are ordered or a quotation is agreed. A calculator result is not a fixed quotation or contract.
USING THE GUIDANCE
Read the range before relying on the number.
A useful renovation budget is based on more than a headline price. Check what the guide includes, which assumptions were used and whether the figures include VAT.
Treat every published range as a starting point for planning rather than a quotation.
Choose the guide matching the main project.
Use the whole-property guide for a coordinated renovation and a specialist guide for an individual room, trade or structural task. Avoid combining unrelated headline ranges.
Review what is included and excluded.
Confirm whether the range covers labour only, supply and installation, removal, preparation, products, waste, specialist trades and final making-good.
Match the allowance to your intended finish.
Standard, mid-range and specialist products can produce very different budgets even when the room size and broad construction work appear similar.
Consider access and existing conditions.
Occupation, restricted access, parking, protection, hidden defects, structural discoveries and older building fabric can affect the final scope and programme.
Check the wording on the individual guide. Some figures are presented excluding VAT, while others may show VAT-inclusive project totals.
A labour rate should not be compared directly with a supplied, installed and finished project range.
Cabinets, sanitaryware, tiles, flooring, paint and specialist finishes can materially change the total.
Removal, levelling, plaster repairs, waterproofing and structural preparation may sit outside a basic installation allowance.
Each cost page has its own pricing basis, scope and assumptions. This directory helps you find the correct guide but does not replace the detailed inclusions, exclusions and qualifications stated there.
REAL GROWCHANCE PROJECTS
See what sits behind a renovation budget.
Cost guides provide planning ranges. Project case studies show how the work, property and technical requirements come together in a real London home.
Explore the relevant project for scope, sequencing and completed-work evidence.
Bungalow Renovation Project
A relevant example for homeowners exploring coordinated whole-property renovation work and the relationship between individual trades.
Explore the Barnet ProjectRear House Extension Project
A completed rear-extension example supporting the extension-cost and project-delivery guidance elsewhere in the Growchance website.
Explore the Bromley ProjectBathroom Renovation Project
A completed bathroom project illustrating the connection between preparation, waterproofing, tiling, installation and final finishes.
Explore the Chiswick ProjectLoad-Bearing Wall and Kitchen Project
A structural opening and kitchen-renovation example connecting structural-alteration planning with the wider room project.
Explore the Deptford ProjectOne-Bedroom Flat Renovation
A completed flat-renovation example for homeowners considering several connected improvements within one coordinated project.
Explore the Greenwich ProjectNew First-Floor Bathroom Project
A completed project showing the work involved in creating an additional bathroom within an existing London property.
Explore the Camden ProjectProject scope, specification, access, building condition and approvals vary. Any price or programme recorded on a case study applies to that particular project and should not be treated as an automatic quotation for another property.
BUDGET PLANNING QUESTIONS
Before you rely on a renovation cost.
These answers explain how to interpret the guides, calculators and project information across the Growchance website.
01 Are the cost-guide figures fixed quotations?
No. The figures are planning guidance based on the scope and assumptions explained within each guide. A quotation requires confirmation of the property, measurements, specification, access and required work.
02 Do all Growchance cost guides include VAT?
Not necessarily. VAT treatment is stated on the individual guide. Some trade rates are presented excluding VAT, while some complete project examples or ranges may be shown including VAT.
Check the wording beside the relevant figure before comparing it with another price.
03 Which guide should I use for work involving several rooms?
Start with the guide covering the main project. For example, use the Full House Renovation Cost Guide for coordinated work across a house and the Flat Renovation Cost Guide for a flat or apartment.
Specialist guides can then help you understand individual parts of the work without automatically adding every published range together.
04 Why can two similar-size projects have different costs?
Size is only one factor. Specification, removal work, preparation, building condition, structural requirements, access, service alterations, product choices and final finishing can all change the scope and price.
05 What is the difference between a cost guide and a calculator?
A cost guide explains typical ranges, inclusions, exclusions and cost drivers for a type of project. A calculator uses measurements and selected options to produce an initial quantity or planning estimate.
Neither replaces a property-specific assessment and quotation.
06 Can I use a completed project price for my own property?
A project price applies to the recorded property, scope, specification and circumstances. It can provide useful context, but it should not be treated as an automatic quotation for another home.
DISCUSS YOUR RENOVATION
Ready to move from a guide to your property?
Tell Growchance what you are planning, where the property is and what information you already have. We can then consider the appropriate next step for the proposed work.
Include the London postcode and property type.
Describe the rooms, structural work or improvements being considered.
Mention any photographs, plans, surveys, designs or measurements already available.
Explain any preferred timing, access considerations or occupied-property requirements.
Published cost guides and calculator results are planning information. A project-specific price requires confirmation of the actual scope and property conditions.