From the team behind Hampstead Renovations · Est. 2009 · Learn more
Kitchen Renovations

Kitchen Extension Design in Golders Green NW11

Integrated design and build for kitchen-dining extensions — combining the rear extension and bespoke kitchen installation as a single coordinated project for maximum impact.

Why Golders Green Properties Choose Us

Large family homes, established community. Mix of Edwardian semis and 1930s detached. Our team works exclusively in NW London, bringing detailed knowledge of Barnet planning requirements and the specific challenges of Edwardian semis & 1930s detached stock.

Planning Authority
Barnet LBC
Average Property Value
£1,200,000
Conservation Area
No
Typical Project Cost
£120,000–£350,000

How a Kitchen Extension Design Works — Step by Step

  1. 1

    Combined Brief — Extension and Kitchen Design

    The most successful kitchen extension projects are designed as a single integrated scheme from day one. We establish the combined brief for the extension footprint, the kitchen layout, the dining area relationship, and the indoor-outdoor connection before any drawings are produced. This prevents the common problem of a well-built extension poorly suited to the kitchen it houses.

  2. 2

    Planning Application for the Extension

    The extension element requires planning permission in all NW London conservation areas. We prepare the planning application including the extension design, kitchen layout shown for context, and the external materials specification. In East Finchley (Barnet), most single-storey rear extensions are permitted development — we confirm this and apply for a Lawful Development Certificate before work starts.

  3. 3

    Architectural Coordination — Extension and Kitchen

    The RIBA architect coordinates the extension structure with the kitchen design: the roof lantern or rooflight run positions are designed to maximise natural light over the island and dining table; the rear wall glazing positions are set to align with the kitchen layout rather than imposed on it; and service routes are designed into the structure from the outset.

  4. 4

    Structural Engineering, Foundation, and Kitchen Service Planning

    The structural engineer designs the extension foundations and frame, and we simultaneously plan all service routes — gas to the cooking range, electrical for the appliance bank, water to the sink, and soil for the dishwasher. These decisions are locked in before groundworks begin, not retrofitted after the extension shell is built.

  5. 5

    Extension Construction — Shell and Core

    The extension is built to the weathertight shell: foundations, walls, roof, glazing, and external finishes. Underfloor heating pipes are cast into the screed. First fix services are installed into the structure. The rear wall of the existing house is opened up at the same time as the extension shell is completed, minimising disruption.

  6. 6

    Kitchen Measurement and Manufacture

    With the extension shell complete and services in place, the kitchen is measured for manufacture. Bespoke or semi-bespoke kitchens are ordered at this point — manufacturing typically takes 8–12 weeks. During this period, internal plastering, painting, and floor preparation in the extension are completed ready for the kitchen to arrive.

  7. 7

    Kitchen Installation, Appliances, and Worktops

    The kitchen is installed in the completed extension. Worktop templates are taken, stone worktops manufactured, and returned for installation. Appliances are installed and commissioned. The rooflight glazing, which was previously boarded, is finally unboarded to reveal the natural light flooding the new kitchen-dining space.

  8. 8

    Landscaping Connection and External Works

    The connection between the kitchen-dining space and the rear garden is completed. Bi-fold or sliding doors are adjusted for weather tightness. External landscaping — paving, decking, or lawn reinstatement — is completed in the garden that was disturbed by the extension groundworks. The full project is snagged and handed over.

Costs and Investment

Typical project cost in Golders Green: £120,000–£350,000

All quotes are fixed-price with no hidden fees. Costs in NW11 reflect the £1,200,000 average property value and the specification level expected in this postcode. We confirm the total cost in writing before work commences.

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Kitchen Extension Design in Golders Green — Planning and Local Considerations

Golders Green in Barnet LBC provides a planning-receptive environment for kitchen extension design. Single-storey rear extensions are often achievable as permitted development, allowing a straightforward LDC route for many NW11 properties. The extended family living patterns drive demand for large, well-specified kitchen-dining spaces. The NW11 market supports premium kitchen specification. Some properties near the HGS boundary require additional planning checks — always confirm designation before proceeding.

Frequently Asked Questions

Is it better to build the extension first and then fit the kitchen, or design them together?
Always design together. The kitchen layout determines the optimal position of the roof lantern (over the island), the rear wall glazing (dining table gets the view), and the service routes (gas, water, electrical). Extensions designed without a kitchen brief often have the lantern in the wrong position or insufficient electrical capacity for the appliance bank. Designing and building both as a single integrated project consistently produces better outcomes.
What is the typical planning timeline for a kitchen extension in Hampstead?
In Hampstead, allow 10–14 weeks for planning determination after submission. Add 4–6 weeks for pre-application advice and scheme development. The full timeline from initial meeting to planning consent is typically 16–22 weeks in NW3. In East Finchley (Barnet), where many kitchen extensions are permitted development, the Lawful Development Certificate can be obtained in 8 weeks.
What is the minimum viable budget for a kitchen extension project in NW London?
In NW3 and NW8, the combined extension build and kitchen installation for a serious project is typically £120,000 minimum. This covers a 4m single-storey rear extension with a mid-range semi-bespoke kitchen, stone worktops, and essential appliances. At the premium end — bespoke cabinetry, stone throughout, premium appliances, and larger footprint — £250,000–£350,000 is the range. In East Finchley, the same quality project is typically achievable for £80,000–£150,000.

For a full overview of our kitchen renovations across NW London, visit our Kitchen Renovations hub. To see all home services available in Golders Green, visit home services in Golders Green.

We also offer kitchen extension design in Hampstead Garden Suburb, Childs Hill and Finchley.

For cost estimates and planning guides, see our cost guides.