GROWCHANCE GUIDES & COSTS
Home Renovation Guides for Planning Your Project.
Explore practical guidance for planning renovation work in London, understanding likely costs and preparing for the decisions involved.
Browse guidance covering renovation costs, structural alterations, kitchens, bathrooms, extensions, lofts and project preparation—with direct routes to related services, calculators and genuine Growchance projects.
START WITH YOUR CURRENT DECISION
What do you need help planning?
A renovation involves different decisions at different stages. Choose the route that best matches the information you need now.
Each route leads to more specific guidance, calculators, services and genuine project evidence without combining different search intents into one oversized guide.
COSTS & BUDGETS
I need to understand likely costs.
Compare realistic London cost guidance and use free calculators to prepare an initial budget for specific types of work.
Explore Cost GuidesSTRUCTURE & REGULATIONS
I am changing walls or structure.
Understand structural assessment, wall removal, engineering, Building Control and the steps involved before work begins.
Explore Structural GuidesRENOVATION PLANNING
I am planning a renovation project.
Find guidance for kitchens, bathrooms, flats, houses, extensions, loft conversions and the preparation needed before construction.
Explore Renovation GuidesCALCULATORS & TOOLS
I want an initial planning estimate.
Use Growchance calculators for quantities and preliminary cost ranges before discussing the final scope and site conditions.
Explore Free CalculatorsCOSTS & BUDGET PLANNING
Start with a realistic project budget.
Renovation costs depend on the existing property, scope, access, specification and the amount of preparation or structural work involved.
Our cost guides explain what commonly changes the price and help you prepare a sensible starting allowance before the work is assessed in detail.
COMPLETE COST-GUIDE DIRECTORY
Explore renovation costs by project and trade.
The Budget Planning hub brings together Growchance cost guides and calculators for renovations, extensions, kitchens, bathrooms, flooring, tiling, plastering and decorating.
Use the directory when you want to compare several parts of a project or find the correct cost-guide owner.
Open Budget PlanningFull House Renovation Cost Guide
Plan the likely budget for renovating a complete London house, including the principal scope and specification decisions.
Explore Full House Costs 03Kitchen Renovation Cost Guide
Understand supplied-and-installed kitchen budgets, fitting costs, specification levels and common additional work.
Explore Kitchen Costs 04Bathroom Renovation Cost Guide
Review realistic bathroom-renovation allowances and the effect of sanitaryware, tiling, preparation and layout changes.
Explore Bathroom Costs 05Loft Conversion Cost Guide
Compare London allowances for rooflight, dormer, hip-to-gable, mansard and ensuite loft-conversion projects.
Explore Loft Costs 06Plastering Cost Guide
Compare skimming, replastering, plasterboarding, preparation and other common plastering-cost considerations.
Explore Plastering Costs 07Painting and Decorating Cost Guide
Understand how property size, preparation, finish, woodwork and existing surface condition affect decorating costs.
Explore Decorating CostsSTRUCTURE, WALLS & BUILDING CONTROL
Understand the technical route before work begins.
Removing or altering walls requires the existing construction to be understood before the work is planned or priced.
These routes explain the difference between structural and non-structural work, together with the possible roles of structural engineers, Building Control and specialist contractors.
CHOOSE THE RELEVANT ROUTE
Start with the wall—not an assumption.
A wall that looks lightweight may still require investigation. Conversely, not every internal wall needs structural steelwork. Select the route that most closely matches the proposed alteration.
PROPERTY-SPECIFIC ASSESSMENT MAY BE REQUIREDLoad-Bearing Wall Removal
Explore the complete service route for structural assessment, engineering, temporary support, steel installation and finishing.
Explore Load-Bearing Walls 03Internal Wall Removal
Understand the route for confirmed non-load-bearing partitions, including services, making good and the surrounding finishes.
Explore Internal Walls 04Open-Plan Kitchen Wall Removal
Follow the specialist route for opening a kitchen into an adjoining room without turning the page into a general kitchen service.
Explore Open-Plan Alterations 05Building Control Notice Fees
Review the focused guidance for Building Control notices connected with load-bearing walls and smaller structural alterations.
Explore Building Control FeesKITCHENS & BATHROOMS
Plan two of the most detailed rooms in the home.
Kitchen and bathroom projects combine products, services, preparation, installation and finishing within a limited space.
Use the separate cost guides, calculators and service pages to keep budget research, early estimates and contractor-delivery intent clear.
KITCHEN PLANNING
Kitchen renovation guidance.
Explore kitchen costs, installation estimates and the complete renovation service without confusing their separate purposes.
BATHROOM PLANNING
Bathroom renovation guidance.
Review complete-renovation budgets, calculate an early estimate and explore the service route for delivering the work.
RELATED BATHROOM GUIDANCE
Preparation beneath the visible finish matters.
RENOVATION, EXTENSIONS & LOFTS
Plan around the type of project you are undertaking.
Renovating an existing property is different from adding new space. The programme, investigations, approvals and budget structure should reflect the project type.
Use these routes to connect early research with the correct cost guide, specialist service and completed-project evidence.
WHOLE PROPERTY
Full house renovation.
Coordinate multiple rooms, building services, finishes and any structural work as one connected residential renovation programme.
FLATS & APARTMENTS
Flat renovation.
Account for shared buildings, access, neighbours, lease conditions, building services and the practical constraints of London flats.
ADDITIONAL FLOOR AREA
House extensions.
Explore the route from defining the extension type through planning, structural design, Building Regulations and construction.
ROOF-SPACE CONVERSION
Loft conversions.
Compare conversion types, likely costs and the practical decisions involved in creating usable accommodation within the roof.
Separate essential work from optional improvements before comparing preliminary budgets.
Planning, freeholder, structural and Building Regulations requirements can affect both programme and cost.
Opening up and investigation can reveal work that was not visible during the earliest planning stage.
FREE CALCULATORS & PLANNING TOOLS
Turn early measurements into useful planning figures.
Growchance calculators help you explore quantities or preliminary cost ranges before requesting a detailed assessment.
The result is available before any optional enquiry. Each tool keeps its own scope so that quantities, labour guidance and complete renovation estimates are not mixed together.
SELECT THE RELEVANT TOOL
Calculate first. Discuss the details when ready.
Enter the available measurements and select only the work that applies. Results provide early planning guidance rather than a fixed quotation or contract.
FREE RESULTS BEFORE ENQUIRYKitchen Installation Calculator
Prepare an initial kitchen-fitting estimate based on the proposed installation scope.
Use the Kitchen CalculatorBathroom Renovation Calculator
Explore a preliminary bathroom-renovation range based on the selected project requirements.
Use the Bathroom CalculatorWall and Floor Tile Calculator
Calculate tiled areas, wastage and tile quantities, with an optional indicative installation range.
Use the Tile CalculatorFloor Installation Calculator
Calculate floor area, wastage, whole packs and an optional flooring-installation estimate.
Use the Flooring CalculatorPainting Calculator
Calculate paint quantities and add an optional residential painting and decorating estimate.
Use the Painting CalculatorPlastering Cost Calculator
Measure walls and ceilings and select the principal plastering treatment required for each surface.
Use the Plastering CalculatorREAL GROWCHANCE PROJECTS
Connect the guidance with completed work.
Cost guides and planning information provide a useful starting point, but completed projects show how different scopes come together in real homes.
These project pages contain genuine Growchance work and property-specific evidence. They are supporting proof rather than generic examples or promises that every project will be the same.
Bathroom Renovation
Bathroom preparation, waterproofing, tiling, installation and final finishing within a completed renovation.
Explore the Chiswick ProjectRear House Extension
A completed rear-extension project demonstrating how additional residential space can connect with an existing London home.
Explore the Bromley ProjectLoad-Bearing Wall and Kitchen
Structural wall alteration integrated with a wider kitchen renovation and the surrounding making-good work.
Explore the Deptford ProjectChimney Breast Removal
A completed chimney-breast alteration showing the connection between structural work, approvals and final reinstatement.
Explore the Ealing ProjectOne-Bedroom Flat Renovation
A coordinated flat renovation covering connected rooms, finishes and the practical delivery of work within an existing property.
Explore the Greenwich ProjectNew First-Floor Bathroom
Creation of an additional bathroom within an existing home, including layout, plumbing, ventilation and complete installation.
Explore the Camden ProjectFEATURED PRACTICAL GUIDANCE
Read the detail behind important decisions.
Some subjects need more than a brief service description. These guides focus on specific questions that can affect safety, scope, preparation and budget.
They support early research while preserving a clear boundary between general information and property-specific professional assessment.
Wall Removal Regulations in the UK
Understand the roles that structural design, Building Regulations, ownership and other project-specific requirements can play before a wall is altered.
Read the Regulations GuideAssessing Structural Walls
Learn why visual clues alone cannot provide final confirmation and when professional investigation is needed before removal begins.
Read the Structural Wall GuideHow Much Does It Cost to Tile a Bathroom?
Review tiling labour, preparation, tile format, waterproofing and other factors that can materially change the final bathroom-tiling budget.
Read the Tiling Cost GuideBathroom Waterproofing Cost Guide
Understand the tanking layer beneath the visible finish, including corners, junctions, penetrations and the difference between a wet zone and a complete wet room.
Read the Waterproofing GuideUSING THE GUIDANCE RESPONSIBLY
Good planning starts with clear boundaries.
Online guidance can help you understand the likely process, prepare a budget and ask better questions before meeting a contractor or professional adviser.
It cannot replace the measurements, investigation and decisions required for your specific property and proposed scope.
THE PURPOSE OF OUR GUIDES
Information that helps you prepare—not generic certainty.
Growchance guides are intended to explain common project routes, cost factors and practical considerations in accessible language. The final answer must still reflect the actual building.
Keep each page focused
Service pages explain delivery. Cost guides support budgeting. Calculators provide interactive planning figures. Project pages provide evidence of completed work.
Explain the assumptions
A useful range should make clear what it covers, what it excludes and which property or specification factors may change the result.
Use real project evidence
Completed Growchance projects are presented as specific examples, not as invented case studies or promises of an identical outcome.
Confirm technical decisions
Structural, regulatory, waterproofing and other technical matters must be confirmed against the proposed work and actual site conditions.
A published range cannot account for every measurement, product, access constraint or hidden condition.
Confirm measurements, wastage, pack information and manufacturer instructions before purchasing materials.
Do not rely on general online information as final structural, regulatory or professional advice for a property.
FREQUENTLY ASKED QUESTIONS
Using the Growchance guides.
Understand where to find costs, calculators, services and project-specific advice before moving to the next stage.
Discuss Your Project01 Where should I start if I do not know what my renovation will cost?
Start with the Budget Planning hub . It organises cost guides and calculators by project type and trade, helping you find the most relevant planning information.
02 Are the published cost ranges fixed Growchance quotations?
No. Published figures are intended for early budget planning. A final quotation depends on the confirmed scope, measurements, access, products, existing conditions and any technical or statutory requirements affecting the property.
03 What is the difference between a cost guide and a calculator?
A cost guide explains typical price ranges, scope, exclusions and the factors that change a budget. A calculator uses your selected measurements and options to provide an interactive planning result. Neither replaces a property-specific quotation.
04 Can an online guide confirm whether a wall is load bearing?
No. General guidance can explain common clues and the assessment process, but it cannot provide final confirmation for your property. The wall and surrounding construction may need to be inspected by an appropriately qualified person before removal.
05 Where can I see examples of completed Growchance work?
Visit the Growchance Projects hub for genuine examples of completed renovation, structural, extension, kitchen and bathroom work. Every project remains a property-specific example rather than a guarantee of identical scope, price or programme.
06 When should I contact Growchance about my project?
Contact Growchance when you have a property, an outline of the work and enough information to explain what you want to change. Drawings, photographs, measurements, reports and product choices are useful where available, but you do not need every detail finalised before making the first enquiry.
START YOUR PROJECT
Tell us about your property and your plans.
If the guides have helped you define the work, share a few details about the renovation, extension or structural alteration you are considering. We will review the enquiry and contact you to discuss the property, likely next steps and whether a site visit is appropriate.
London postcode, property type, proposed work and preferred timescale.
Mention if you have photographs, measurements, plans, drawings, surveys or structural information available.
Tell us whether you are researching, preparing the scope, obtaining approvals or ready to discuss construction.
Submitting an enquiry does not create a contract or guarantee availability. Project suitability and the appropriate next step are confirmed after review and discussion.