Planning tools

UK Home Cost Calculators

73 live planning calculators built from dated UK benchmarks, transparent assumptions and regional pricing.

Data review: 1 September 2026 · 73 live calculators · 4 cross-project utilities

Planning utilities

Plan a budget, check quotes or compare regions

Use these cross-project tools before quoting, after the first contractor price arrives, or when comparing several proposals on a like-for-like basis.

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Project calculators

Choose a cost calculator

Filter the full calculator library by project type and open the tool that matches your scope.

73 calculators shown.

Live calculator

House Renovation

Estimate a whole-home renovation by property size, scope, condition and postcode.

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House Extension

Adjust project size, region, storeys, finish, kitchen and bathroom add-ons.

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Build a House

Estimate a new-build budget by floor area, specification, complexity and postcode.

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Build a Garage

Estimate single or double garage construction by roof type, groundwork complexity and postcode.

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Garage Conversion

Estimate a garage conversion by floor area, garage type, finish level and postcode.

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Garage Door Replacement

Estimate up-and-over, sectional, insulated, roller and electric garage-door replacement costs.

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Conservatory

Estimate lean-to, Victorian, Edwardian and higher-spec conservatory costs by area and postcode.

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RSJ Beam

Estimate a common 1–5 metre RSJ beam, fitting and structural engineer allowance.

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Concrete Volume & Cost

Calculate concrete volume and estimate ready-mix, delivery and pump-hire costs.

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Brick Wall

Estimate single-skin, double-skin and cavity brick walls by dimensions and postcode.

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Loft Conversion

Compare Velux, dormer, hip-to-gable, mansard and bungalow loft budgets.

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Kitchen Renovation

Estimate a fitted kitchen by room size, specification and region.

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Bathroom Renovation

Model finish level, layout changes, underfloor heating and region.

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Roof Replacement

Estimate gable, hip and flat roof replacement costs by area and region.

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Gutter Replacement

Estimate uPVC guttering by length, downpipes, leaf guards, access and postcode.

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Chimney Repair

Estimate caps, flashing, repointing, liners and stack-removal budgets.

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House Rendering

Estimate exterior rendering by wall area, specification, preparation and postcode.

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Scaffolding

Estimate scaffolding hire by approximate area, access complexity, duration and postcode.

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Skip Hire

Estimate mini, midi and builder skip hire by size, weeks, permit allowance and postcode.

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Damp Proofing

Compare injection treatment, physical DPC retrofit and basement tanking.

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Window Replacement

Price double glazing by window type, quantity, region and access.

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Double-Glazed Doors

Estimate front, French and patio double-glazed doors by quantity, installation complexity and postcode.

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House Rewiring

Estimate a full rewire by property size, region and specification.

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Consumer Unit Replacement

Estimate a fuse box or consumer unit replacement by circuit count, condition and postcode.

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Electrician Cost

Estimate routine electrician labour by hours or days, materials allowance and postcode.

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Boiler Replacement

Model boiler type, moving costs, controls and common extras.

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Boiler Service

Estimate a one-off gas, oil or electric boiler service with regional modelling.

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Central Heating Installation

Estimate gas, oil or electric central-heating installation by property size and region.

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Radiator Replacement

Estimate standard panel, vertical, column and towel-radiator replacement by quantity and postcode.

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Power Flushing

Estimate central-heating power flushing by radiator count, system condition and region.

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Heat Pump

Estimate air-source or ground-source costs and model the current BUS grant.

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Air Conditioning Installation

Estimate wall-mounted or ducted home air-conditioning equipment and installation.

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Underfloor Heating

Compare electric and wet underfloor heating by area, project type and postcode.

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Solar Panels

Estimate 3–6 kW solar PV, battery storage and access costs.

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Home Insulation

Estimate loft quilt and cavity-wall insulation with postcode-aware pricing.

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Cavity Wall Insulation

Estimate cavity wall insulation by property type, wall condition and postcode.

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External Wall Insulation

Estimate external wall insulation by wall area, condition, finish and postcode.

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EV Charger

Estimate installation cost and model current eligible OZEV grant support.

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Flooring

Estimate laminate, engineered wood or hardwood supply and installation.

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Painting & Decorating

Estimate room, whole-home and exterior decorating costs.

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Plastering

Estimate skim or specialist plastering by surface area, condition and postcode.

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Garden Landscaping

Estimate turf, artificial grass, levelling and flagstone paving by area.

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Driveway

Compare gravel, tarmac, concrete, block paving and resin driveways.

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Patio

Estimate patio laying by area, material specification, ground prep and postcode.

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Garden Decking

Compare softwood, composite and hardwood decking by area, complexity and postcode.

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Garden Room

Estimate mini rooms, insulated office pods and high-spec cabins.

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Drain Unblocking

Estimate drain rodding, jetting, CCTV survey and standard or emergency call-out costs.

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CCTV Drain Survey

Estimate basic CCTV inspection, full written report or larger-property drain survey costs.

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House Survey

Estimate Level 1, Level 2 and Level 3 house survey costs by property size and region.

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Structural Survey

Estimate a focused structural-engineer survey for cracking, movement or other structural concerns.

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Party Wall Surveyor

Estimate party wall surveyor fees by project type and one or two-surveyor arrangement.

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Builder Labour

Estimate builder labour by days or hours, materials allowance and postcode-aware regional pricing.

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Bricklayer Labour

Estimate bricklayer labour by days, materials allowance and postcode-aware regional pricing.

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Carpenter Labour

Estimate carpenter or joiner labour by hours or days and postcode-aware regional pricing.

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Plumber Labour

Estimate plumber labour by hours or days, materials allowance and postcode-aware regional pricing.

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Roofer Labour

Estimate roofer labour by hours or days and postcode-aware regional pricing.

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Tiler Labour

Estimate tiler labour by hours or days, materials allowance and postcode-aware regional pricing.

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Kitchen Fitter Labour

Estimate kitchen fitter labour by days, materials allowance and postcode-aware regional pricing.

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Building Labourer

Estimate general building labourer costs by hours or days and postcode-aware regional pricing.

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Landscaper Labour

Estimate landscaper labour by hours or days, materials allowance and postcode-aware regional pricing.

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Planning Application Fees

Check common England householder statutory planning fees from 1 April 2026 and add an optional professional-cost allowance.

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EPC Cost

Estimate a domestic Energy Performance Certificate assessment by property scale and postcode-aware regional modelling.

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Asbestos Survey

Estimate management or refurbishment asbestos survey costs by survey type, property scale and postcode.

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Structural Engineer

Estimate inspections, reports, RSJ calculations, load-bearing wall assessments and residential engineering fees.

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Load-Bearing Wall Removal

Estimate structural wall removal by opening size with engineer, building-control and making-good allowances.

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Asbestos Removal

Estimate asbestos roof removal, domestic per-square-metre removal or encapsulation planning costs.

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Architect Fees

Estimate architect fees by project percentage, hourly support or fixed extension and new-build service packages.

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Roof Repair

Estimate flat, tile, slate and specialist roof repair costs by area with access allowances kept separate.

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Repointing

Estimate brick or stone repointing with raking-out and scaffolding allowances.

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Floor Screeding

Estimate traditional, reinforced, liquid or fast-drying screed with material and labour shown separately.

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Flat Roof Replacement

Estimate felt, EPDM, GRP or asphalt flat roof replacement by area, deck condition and postcode-aware regional modelling.

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Plasterboard Installation

Estimate plasterboard supply-and-fit costs for walls or ceilings by area, finishing allowance and region.

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Fence Installation

Estimate installed garden fencing by run length, fence type, ground conditions, removal allowance and region.

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