If you're looking at garden design costs in Kent, the first thing to know is that prices vary significantly depending on where you are in the county, what your soil is like, and whether your property sits in a conservation area. A design-only package for a small courtyard in Canterbury will cost a fraction of a full design and build for a sloping half-acre plot in Sevenoaks.
This guide gives you realistic 2026 prices for garden design across Kent, from Tunbridge Wells to Whitstable, with actual figures for design fees, build costs per square metre, and the material choices that shift the budget.
What Does Garden Design Cost in Kent?
Design fees in Kent typically range from £1,200 for a small courtyard to £8,000+ for a large country garden with complex levels and detailed planting plans. That's design only: measured survey, concept drawings, planting plan, hard landscaping layout, and 3D visuals.
If you want the full package (design and build), costs start from around £12,000 for a small courtyard transformation and can reach £80,000+ for a large garden with terracing, bespoke stonework, lighting, and mature planting.
Garden Design Fees (Design Only)
| Garden Size | Area (sqm) | Design Fee | What's Included |
|---|---|---|---|
| Small Courtyard | 10-30 | £1,200-£2,500 | Site survey, concept plan, planting plan, material spec, 3D visual |
| Medium Garden | 30-100 | £2,500-£4,500 | As above plus detailed hard landscaping drawings, lighting plan, phased implementation options |
| Large Garden | 100-250 | £4,500-£8,000 | Full package plus zoning plan, levels drawings, drainage strategy, project management if needed |
| Very Large / Rural Plot | 250+ | £8,000-£15,000+ | Complete masterplan, phased delivery over multiple years, structural engineer liaison if terracing involved |
These are Soil Sisters' 2026 rates. You'll find cheaper quotes from designers who provide sketch plans without 3D visuals or detailed specs, and you'll find significantly more expensive quotes from RHS Gold medal winners. The figures above reflect experienced, qualified designers who produce buildable plans and project-manage the installation.
Garden Build Costs (Design + Build)
If you want the whole job done, here's what to budget:
| Project Type | Garden Size | Total Cost (Design + Build) |
|---|---|---|
| Small Courtyard | 10-30 sqm | £12,000-£25,000 |
| Medium Garden | 30-100 sqm | £25,000-£55,000 |
| Large Suburban Garden | 100-250 sqm | £50,000-£90,000+ |
| Very Large / Country Garden | 250+ sqm | £80,000-£200,000+ |
| Patio Only (no planting) | 20-50 sqm paved area | £8,000-£18,000 |
| Garden Renovation | Refresh with new planting + repairs | £8,000-£30,000 |
The wide ranges reflect material choices (Indian sandstone vs reclaimed York stone), access (scaffolding for a no-access Victorian terrace), and complexity (a flat rectangular plot costs far less than a steep hillside needing retaining walls).
What Affects Garden Design Costs in Kent?
1. Soil Type and Ground Conditions
Kent has some of the most varied geology in South East England. If you're on the North Downs chalk, drainage is excellent and foundations for walls and patios are straightforward. If you're on the Wealden clay around Maidstone, Tonbridge, and Sevenoaks, expect to spend more on drainage, ground preparation, and potentially deeper foundations for any structures.
Clay soil also means longer curing times for concrete and more careful timing of construction (building in winter on clay is expensive and slow). Sandy soils in parts of the Weald are easier to work but may need more organic matter for planting, which adds to the soft landscaping budget.
2. Access and Site Constraints
Many Kent properties, particularly in historic town centres like Tunbridge Wells, Westerham, and Sevenoaks, have no vehicle access to the rear garden. That means all materials go through the house or over scaffolding, which adds 10-20% to labour costs.
Sloping sites are common across the county, especially in the North Downs villages (Knockholt, Seal, Kemsing, Otford). If your garden drops more than a metre over its length, you'll need retaining walls, steps, or terracing. Budget £180-£350 per linear metre for basic sleeper walls, or £350-£600+ per linear metre for engineered stone or rendered block walls.
3. Conservation Areas and Listed Buildings
Tunbridge Wells, Sevenoaks, Westerham, and Canterbury all have extensive conservation areas. If you're in one, certain works need planning permission (anything that affects the character of the area), and materials must be sympathetic to the setting. That usually means:
- Reclaimed York stone or natural stone paving instead of cheaper concrete alternatives
- Traditional brick or render finishes for walls
- Timber fencing or hedging instead of close-board panels
You may also need Listed Building Consent for changes to a listed property's curtilage (the land immediately around the building). This can add 4-8 weeks to the project timeline and requires design drawings to a higher standard. Factor in £500-£1,200 for planning/LBC drawings if your designer doesn't include this in the base fee.
4. Material Choices
Paving is the single biggest cost variable in a hard landscaping project. Here's what you'll pay per square metre in Kent in 2026:
| Material | Cost per sqm (Supply + Install) | Lifespan | Best For |
|---|---|---|---|
| Indian Sandstone | £85-£145 | 20-30 years | Traditional, cottage, period properties |
| Porcelain Paving | £100-£180 | 30+ years | Contemporary, low-maintenance, high-traffic areas |
| Reclaimed York Stone | £140-£250 | 50+ years | Listed buildings, conservation areas, premium finish |
| Concrete Slab (Budget) | £60-£90 | 15-20 years | Utility areas, sheds, bin stores |
| Gravel | £35-£60 | 10-15 years (needs topping up) | Informal paths, Mediterranean schemes |
| Composite Decking | £130-£220 | 25+ years | Low-maintenance, modern, families |
| Hardwood Decking | £150-£280 | 20-30 years (with treatment) | Premium finish, natural aesthetic |
For a typical 40 sqm patio in Kent, that's a cost difference of £2,400 (concrete slab) to £10,000 (reclaimed York stone). Both will last, but the look, feel, and maintenance requirements are completely different.
5. Planting and Soft Landscaping
Planting budgets range from £30-£60 per sqm for a basic mixed border with young plants (2-3 litre pots) to £150-£250+ per sqm for an instant-impact scheme using larger specimens (10-15 litre pots) and mature shrubs.
If you're creating a cottage garden or herbaceous border, expect to buy 5-7 plants per square metre. For a contemporary scheme with architectural plants and grasses, you might only need 3-4 per square metre but they'll cost more individually (Fatsia japonica, Miscanthus, Hakonechloa, Verbena bonariensis at larger sizes).
Mature trees add instant structure but cost significantly more. A 3-4 metre multi-stem Betula (birch) costs £400-£800, a 3 metre Amelanchier £300-£600, and a 2-3 metre Acer palmatum (Japanese maple) £250-£600 depending on the cultivar.
6. Location Within Kent
There's a noticeable premium in certain parts of the county:
Premium areas (10-20% above baseline):
- Tunbridge Wells (especially Pembury, Langton Green, Speldhurst)
- Sevenoaks (especially Sevenoaks Weald, Seal, Riverhead)
- Westerham and the villages along the North Downs (Brasted, Sundridge, Knockholt)
- Canterbury city centre (conservation area restrictions, access issues)
Baseline pricing:
- Maidstone and the Medway towns
- Ashford and Tenterden
- Tonbridge
Lower costs (5-10% below baseline):
- Sheerness, Sittingbourne, Faversham (better access, fewer planning constraints)
This isn't about quality of work. It's about demand (more competition for contractors in high-value areas), access (scaffolding and manual handling in town centres), and material availability (stone suppliers charge more for delivery to rural North Downs villages than to Maidstone).
Common Hidden Costs to Budget For
Skip Hire and Waste Removal: £250-£600 depending on how much soil, rubble, or old paving needs removing. Many old patios are deeper than you'd think (300mm of concrete and hardcore is common).
Tree Surgery: If you need trees felled, reduced, or pruned before work starts, budget £300-£800 per tree for qualified arborists. If the tree is protected by a Tree Preservation Order (TPO) or you're in a conservation area, add 6-8 weeks for consent and £200-£400 for the TPO application.
Ground Investigation: If your garden has subsidence history, Japanese knotweed, or contaminated land (common near old industrial sites in the Medway towns), you may need a ground investigation report before work can start. Budget £600-£1,500.
Scaffolding: For no-access properties in terraced streets (common in Tunbridge Wells, Sevenoaks, Canterbury), scaffolding over the house costs £800-£1,500 for a typical two-week hire.
Electrics: If you're adding garden lighting, an outdoor socket, or a water feature with a pump, you'll need a certified electrician to run armoured cable and install RCD protection. Budget £400-£800 for a basic lighting circuit, more if you're running cable a long distance from the house.
How to Keep Garden Design Costs Down
- Phase the Work
Design the whole garden now, but build it in phases. Do the patio and structural planting in year one, add the lighting and water feature in year two, mature the borders in year three. This spreads the cost and gives you time to see what works. - DIY the Soft Landscaping
Hire a landscaper for the hard work (paving, walls, drainage) but plant the beds yourself. A designer can still provide the planting plan and plant list. You'll save 30-40% on the soft landscaping budget. - Choose Mid-Range Materials
Indian sandstone instead of reclaimed York stone. Composite decking instead of hardwood. Pressure-treated softwood instead of oak for raised beds. You'll still get a beautiful garden, and the cost difference can be £5,000-£10,000 on a medium-sized project. - Smaller Plants, More Patience
Buy 2-3 litre pot sizes instead of 7.5-10 litre. They'll take 2-3 years longer to fill out, but the cost difference is significant (often 50-60% cheaper). Perennials and grasses bulk up fast, so go smaller there. Save the bigger pot sizes for key structural plants (Fatsia, Phormium, Pittosporum). - Simplify the Design
A rectangular patio with two simple borders will cost far less than a curved design with multiple levels, steps, and intricate edging. Complexity drives cost. If you're on a tight budget, talk to your designer about a simpler layout that still looks good.
What Does a Garden Cost in Specific Kent Towns?
Sevenoaks and the North Downs Villages
Design fees: £1,500-£12,000 depending on size and complexity. Full design and build: £15,000-£120,000+.
Sevenoaks has some of the most expensive properties in Kent, and garden costs reflect that. Many plots are large (200-600 sqm), sloped, and in conservation areas. Expect to budget for retaining walls, levels surveys, and premium materials. Access can be an issue in the older parts of town (Sevenoaks Weald, St Johns).
For professional garden design in Sevenoaks, see our dedicated Sevenoaks garden design page.
Tunbridge Wells, Tonbridge, and Pembury
Design fees: £1,200-£10,000. Full design and build: £12,000-£100,000+.
Tunbridge Wells has extensive conservation areas and many listed properties. Planning requirements are stricter here, and material choices matter. Slopes are common (the town is built on sandstone ridges), so terracing and retaining walls are frequent additions. Labour costs are at the higher end for Kent due to demand and access constraints.
For professional garden design in Tunbridge Wells, see our dedicated Tunbridge Wells garden design page.
Westerham and Surrounding Villages
Design fees: £1,200-£8,000. Full design and build: £12,000-£90,000+.
Westerham and the nearby villages (Brasted, Sundridge, Knockholt) are picturesque but remote, which can increase material delivery costs. Many properties are period cottages or farmhouses with generous plots. Soil is variable (chalk on the Downs, clay in the valleys). Conservation area restrictions apply in Westerham centre.
For professional garden design in Westerham, see our dedicated Westerham garden design page.
Maidstone and the Medway Towns
Design fees: £1,200-£6,000. Full design and build: £10,000-£70,000+.
Maidstone and the Medway towns (Chatham, Rochester, Gillingham) have more straightforward access and fewer conservation area constraints. Clay soil is common, so drainage and ground preparation are key considerations. Prices here are 10-15% lower than Sevenoaks or Tunbridge Wells for equivalent projects.
Canterbury, Whitstable, and Faversham
Design fees: £1,200-£7,000. Full design and build: £12,000-£80,000+.
Canterbury city centre has strict planning controls (conservation area, proximity to the cathedral). Whitstable and Faversham are more relaxed but coastal exposure means wind-tolerant planting is essential. Soil is variable: chalk near Canterbury, heavy clay around Faversham. Access in Canterbury's medieval streets can be difficult.
Ashford and the Weald
Design fees: £1,200-£6,000. Full design and build: £10,000-£60,000+.
Ashford and the surrounding Weald villages have the most affordable garden design costs in Kent. Land is cheaper, access is better, and there are fewer conservation area restrictions. Clay and sandy loam soils dominate, so drainage and soil improvement are common requirements.
Frequently Asked Questions
How much does it cost to redesign a garden in Kent?
Design-only fees range from £1,200 (small courtyard) to £8,000+ (large country garden). If you want design and build, expect £12,000-£25,000 for a small garden, £25,000-£55,000 for a medium-sized plot, and £50,000-£90,000+ for a large suburban or rural garden. The wide range depends on site access, soil type, whether you're in a conservation area, and your choice of materials.
Do I need planning permission for garden design work in Kent?
Most garden landscaping doesn't need planning permission. You can lay a patio, build low walls (under 1 metre if not on a boundary, under 2 metres if on a boundary), plant beds, and install lighting without consent. You will need permission if you're in a conservation area and the work affects the character of the area, or if you're working on a listed building and the changes affect its curtilage. Tree work may require consent if the tree is protected by a Tree Preservation Order (TPO) or you're in a conservation area. Check with your local council (Sevenoaks District Council, Tunbridge Wells Borough Council, Canterbury City Council, etc.) before starting work.
What's the cheapest way to landscape a garden in Kent?
The most cost-effective approach is to DIY the soft landscaping (planting) and hire professionals only for the hard landscaping (paving, walls, drainage). Use budget-friendly materials like concrete paving or gravel instead of natural stone. Buy smaller plants (2-3 litre pots) and give them time to grow. Phase the work over 2-3 years to spread the cost. A simple rectangular layout costs far less than a complex design with curves, levels, and multiple zones.
How long does a garden design project take in Kent?
Design phase: 4-8 weeks from first meeting to final drawings, depending on the complexity. Build phase: 2-4 weeks for a small courtyard, 4-8 weeks for a medium garden, 8-12+ weeks for a large plot with terracing, walls, and detailed planting. Add 4-6 weeks if planning permission or Listed Building Consent is needed. Weather can delay outdoor work, especially on clay soils in winter.
Should I use a local Kent garden designer or a national company?
A local designer knows Kent's soil types, climate, planning constraints, and which contractors are reliable. They're familiar with the North Downs chalk, Wealden clay, and coastal exposure along the Thames Estuary. They'll also have direct relationships with local stone suppliers, plant nurseries, and landscapers, which can save time and money. National companies can be good but may lack this local knowledge and charge a premium for travel.
What's the difference between garden design and landscaping costs?
Garden design is the planning: site survey, drawings, planting plans, 3D visuals, material specifications. Fees range from £1,200-£8,000+ depending on size and complexity. Landscaping is the build: laying the patio, building the walls, installing drainage, planting the beds. This is where the bulk of the cost sits (£10,000-£80,000+ for most projects). Some designers offer design-only services, others do design and build. If you separate them, you'll need to manage the contractor yourself and ensure they follow the design.
How much does a new patio cost in Kent?
For a 30 sqm patio (typical size for a small-medium garden), budget £3,000-£6,000 for budget materials (concrete paving, basic edging), £4,500-£8,000 for mid-range materials (Indian sandstone, brick edging), and £6,000-£12,000+ for premium materials (porcelain paving or reclaimed York stone). This includes excavation, sub-base, paving, and pointing. Add 10-20% for difficult access or sloping sites.
Get an Accurate Quote for Your Kent Garden
Every garden is different. Soil, slope, access, conservation area status, and your brief all affect the final cost. The figures in this guide give you a realistic starting point, but the only way to know what your project will cost is to get a proper quote based on a site visit and measured survey.
Soil Sisters designs and builds gardens across Kent, from small courtyard transformations to large country garden masterplans. We work in Sevenoaks, Tunbridge Wells, Westerham, Maidstone, Canterbury, and everywhere in between.
Book a free consultation: We'll visit your garden, discuss your ideas, and provide a clear, no-obligation quote for design fees and build costs. Call 0203 834 9807 or email enquiries@soilsisters.co.uk.
For more on our Kent garden design service, see our main Kent page. For detailed guidance on budgeting, read our complete garden design budget guide. For comparison with London pricing, see our Garden Design Cost London guide.