Fully Insured & Accredited
Fixed-cost project frameworks
Conservation Areas specialists
RBKC Planning Experts
Dedicated Project Manager
Fully Insured & Accredited
Fixed-cost project frameworks
Conservation Areas specialists
RBKC Planning Experts
Dedicated Project Manager

Kensington Homeowners Planning a Build - Start Here

Not every builder understands Kensington. Most shy away from Article 4 Directions, Listed Building Consent, and the strict conservation requirements that govern over 70% of W8 properties. We don’t. We built our entire practice around them.

This is for you if.

  • You own a Victorian or Edwardian property in Kensington and want to renovate without risking planning refusal
  • You’re expanding your home in W8 : loft conversion, rear extension, or side return and need a builder who knows the RBKC rules cold
  • You’ve been let down by a previous contractor who underestimated the complexity of a conservation area build
  • You want a single point of contact, fixed pricing, and a guaranteed timeline not excuses
  • You’re a property developer or landlord maximising yield on a Kensington investment property

If any of these resonate, you’re in the right place. As Kensington builders, we’ve completed over 500 projects across Kensington W8, Holland Park, South Kensington, and the Royal Borough and we’ll bring the same precision to yours.

Services

We Don’t Just Build - We De-Risk Your Entire Project

What We Offer in Kensington W8

BUILT FOR KENSINGTON HOMEOWNERS

We specialise in exactly four types of Kensington projects and we deliver exceptional results on all of them.

01
Victorian & Listed Homes
Period property renovation with full conservation compliance cornices, sash windows, original fabric preserved and respected.
02
High-Value Property Upgrades
Kensington renovations demand a different calibre of craftsmanship. We deliver finishes that reflect the prestige of your W8 address.
03
Space Expansion Without Moving
Extensions and loft conversions that add significant living space and a measurable resale value, without the disruption of upsizing.
04
Compliance‑Free Renovation
Article 4, Listed Building Consent, Party Wall Awards, all handled by our in-house planning team. You focus on the vision.
RECENT KENSINGTON PROJECTS

Real Projects, Measurable Results.

We don’t just build beautiful spaces — we deliver outcomes that matter to W8 homeowners.

FULL RENOVATION
Kensington Townhouse — W8 4PN
Timeline
14 wks
Budget
£120K
Value Added
+£220K

Complete Victorian townhouse refurbishment including structural reconfiguration, full M&E upgrade, and period restoration. Conservation Area approval secured in 9 weeks. Completed on time and on budget with zero planning delays.

LOFT CONVERSION
Holland Park Victorian — W11 3TN
Timeline
10 wks
Budget
£62K
Value Added
+£180K

Mansard loft conversion on a Grade II listed Victorian property in Holland Park conservation zone. Listed Building Consent managed end-to-end. New master bedroom suite with ensuite and roof terrace. Zero delays.

Speak to Us Today

Get in touch with Rated Builders Company for a free consultation and explore how we can make your renovation seamless and rewarding.

Why Kensington Homeowners Choose Rated Builders London

Selecting a builder for a Kensington project is one of the most consequential decisions you’ll make as a homeowner. The stakes are high – not just financially, but legally, structurally, and in terms of planning compliance. The wrong choice can mean abortive planning applications, building regs failures, neighbour disputes, and projects that cost twice what they should.

Here’s why over 500 W8 families and property developers have trusted us with their most valuable asset:

  • Fixed Price Always: We quote what we charge. Our contracts are fully itemised. No variations, no scope creep, no surprises at invoice stage.
  • Conservation Area Specialists: The only building company in Kensington with an in-house planning and design team focused exclusively on W8. We don’t outsource planning – we own it.
  • Dedicated Project Manager on Every Job: From day one to handover, one person is accountable for your project. They answer your calls, attend every key inspection, and send weekly updates.
  • FMB Master Builders: Full accreditation with the Federation of Master Builders – independently inspected and vetted. Not self-certified.
  • TrustMark Government-Endorsed: One of fewer than 20% of UK builders who meet TrustMark’s quality, insurance, and consumer protection standards.
  • RBKC Planning Approved: Track record of successful planning applications specifically within the Royal Borough – not generic planning experience.
  • 5.0 Google Reviews: Based on verified client submissions. Available to view on our Google Business profile.
  • CDM 2015 Compliant: Full compliance with Construction (Design and Management) Regulations – critical for high-value residential projects and essential for your insurance.
  • 12-Month Workmanship Guarantee: Every project, every trade, every finish. If something isn’t right in the first year, we fix it.

Our Project

Rated Builders London

CLIENT TESTIMONIALS

What Kensington Homeowners Say

★★★★★

Our Kensington extension was completed in 12 weeks, on budget. The team navigated the Article 4 restrictions without a single delay. Property value increased by £180,000.

★★★★★

Our Victorian terrace renovation was managed flawlessly from start to finish. Planning, Listed Building Consent, build, and handover — completely stress-free. The finest builders we’ve worked with.

★★★★★

As a property developer in Kensington, I’ve used many builders. Rated Builders are exceptional — they understand the specific requirements of W8 projects and deliver every time. Now my exclusive builders for all W8 work.

Navigating Kensington’s Conservation Areas - Our Core Competency

Over 70% of the Royal Borough of Kensington and Chelsea is designated as a Conservation Area. That’s not a footnote, it’s the central fact of every building project in W8.

Most builders treat Kensington’s planning environment as a barrier. We treat it as our advantage. In the ten-plus years we’ve been operating here, we’ve built a planning practice that runs alongside our build teams securing approvals, managing objections, and navigating Article 4 Directions before they become delays.

What This Means in Practice

  • Article 4 Compliance: In areas like Edwardes Square, Scarsdale, and Holland Street, even minor external alterations – window replacement, painting the front facade, changing roof tiles – require planning permission. We know these areas intimately and manage applications proactively.
  • Listed Building Consent: Kensington has thousands of listed buildings. Internal alterations on listed properties – from installing recessed lighting to replastering cornices – can be criminal offences without Listed Building Consent. We manage the entire LBC process, typically 12-18 weeks.
  • Materials Matching: Conservation officers require period-accurate materials. We source matching period brickwork, sash window profiles, lime mortar, and slate roofing from specialist suppliers – materials that satisfy RBKC officers and maintain your property’s character and value.
  • Party Wall Agreements: High-density Kensington terraces make Party Wall Awards essential for most extensions and loft projects. We manage neighbour negotiations and surveyor appointments, preventing disputes before they delay your build.

The result: your project starts on time, builds without interruption, and completes with full planning sign-off. Zero surprises.

Kensington’s Most Trusted Building Company - Serving Every Corner of W8

We work exclusively across Kensington and the Royal Borough of Kensington and Chelsea. Every project manager, planner, and craftsman on our team knows the specific requirements of W8 properties – the conservation areas they fall within, the planning officers who assess them, and the architectural details that define them.

We regularly carry out work across the following areas:

  • Kensington High Street and the surrounding streets – W8 4 and W8 5 postcodes
  • Holland Park and Holland Street Conservation Area
  • South Kensington – particularly properties near Exhibition Road and the museum quarter
  • Earl’s Court – W8 6, including mansion blocks and Victorian terraces
  • Notting Hill Gate and the north Kensington fringe – W11 properties
  • Edwardes Square Conservation Area – one of London’s most tightly regulated
  • Scarsdale Conservation Area – period brickwork and original fabric specialists
  • Abingdon Road and Abingdon Villas
  • Holland Villas Road and Campden Hill
  • Chelsea – SW3 and SW10, for clients requiring continuity across the Royal Borough

If your property is within the Royal Borough of Kensington and Chelsea, we cover it. Contact us to confirm availability for your specific address.

FREQUENTLY ASKED QUESTIONS

Kensington Building Questions Answered

Everything W8 homeowners need to know before starting a building project in Kensington.

House extensions in Kensington W8 typically cost between £80,000 and £180,000, depending on scope, specification, materials, and conservation requirements. Single-storey rear extensions typically run £90,000-£130,000. Double-storey additions start from £130,000-£180,000, reflecting the additional structural complexity and RBKC planning requirements. All our quotes are fixed-price and fully itemised, no hidden costs. We provide your builders Kensington quote within 24 hours of a site visit.

AREA WE COVER

Kensington's Most Trusted Building Company

We work exclusively as Kensington builders across the Royal Borough of Kensington and Chelsea. Every project manager, planner and craftsman knows the specific requirements of W8 properties.

Limited Monthly Project Slots
Due to our quality-first approach and high demand across W8, we take on a limited number of new projects each month. If you’re planning a 2026 project, secure your consultation early.

What You Get

More living space without the cost of moving
Higher property resale value - proven W8 ROI
Stress-free managed build - one point of contact
Fixed timelines and full cost transparency
Conservation compliance - zero planning risk
12-month workmanship guarantee on all projects
FMB
Master Builder
Gov. Endorsed
TrustMark
RBKC
Planning Approved
★ 5.0
Google Reviews
CDM 2015
Compliant
10+ yrs
In Business

Speak to Us Today

Get in touch with Rated Builders Company for a free consultation and explore how we can make your renovation seamless and rewarding.
START YOUR PROJECT

Get a Fixed Quote for Your Kensington Project in 24 Hours - keep as-is

Join hundreds of W8 homeowners who trusted our Kensington builders team with their most valuable asset. No obligation, just clarity on cost and timeline.