Call or Text: 07443804841

Architect in Kingston upon Thames | Loft Conversions, Extensions & Planning

RIBA-aligned practice | 300+ projects completed | 97% planning success rate | 5-star reviews | Serving Kingston upon Thames and the wider Royal Borough of Kingston upon Thames area

Crown Architecture is a specialist residential and commercial architectural practice with deep experience working in Kingston upon Thames. Whether you are planning a loft conversion, a house extension, a full renovation, or a new-build project, our architects understand the planning policies, conservation area rules, and design character of Kingston upon Thames and the surrounding area.

We manage every step of the process from the initial feasibility study and concept design through to planning permission, Building Regulations approval, and contractor administration. One fixed fee, one point of contact, and a track record of getting planning consent first time.

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Why Choose Crown Architecture in Kingston upon Thames?

Choosing the right architect in Kingston upon Thames matters. Kingston Council has specific planning policies and design expectations for this area, and a poorly prepared planning application can face refusal, delay, or costly amendments. Crown Architecture brings three key advantages to every Kingston upon Thames project:

• Local knowledge: We have prepared planning applications approved by Kingston Council for projects in Kingston upon Thames and surrounding neighbourhoods. We know the planners’ priorities and the design character that Kingston Council expects new development to respond to – whether that is the Victorian terraces in Norbiton, Edwardian and interwar semis throughout the borough, and new-build riverside apartments that defines the area.
• Fixed fees, no surprises: Every client receives a fixed-fee proposal before work begins. Our fees are transparent and include all revisions until planning permission is secured.
• Full service: Crown Architecture prepares planning applications, liaises with Kingston Council case officers, attends pre-application meetings where appropriate, and provides contract administration during construction.

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Our Architectural Services in Kingston upon Thames

Loft Conversions in Kingston upon Thames

The Victorian terraces in Norbiton, Edwardian and interwar semis throughout the borough, and new-build riverside apartments in Kingston upon Thames are typically well suited to loft conversion. Depending on the roof type, a loft conversion can add a bedroom, a home office, or a bathroom to your home without using any garden space. The most popular types in Kingston upon Thames are dormer loft conversions and hip-to-gable conversions.

Many loft conversions in Kingston upon Thames qualify as Permitted Development under Class B, though properties in conservation areas, flats, and maisonettes require full planning permission. Crown Architecture advises on the most appropriate route for your specific property.

A loft conversion in Kingston upon Thames typically costs between £40,000 and £80,000 for the construction works, depending on size and specification.

House Extensions in Kingston upon Thames

A well-designed house extension transforms how you use your home and adds significant value. In Kingston upon Thames, the most popular extension types are single-storey rear extensions, side return infills, and wraparound extensions. Many properties in Kingston upon Thames can accommodate an extension under Permitted Development, subject to size limits and Kingston Council Prior Approval notification.

Crown Architecture designs extensions that respect the character of Kingston upon Thames’s Victorian terraces in Norbiton, Edwardian and interwar semis throughout the borough, and new-build riverside apartments, respond sensitively to neighbouring properties, and comply with Kingston Council’s planning policies.

Planning Applications in Kingston upon Thames

Crown Architecture prepares and submits planning applications to Kingston Council on behalf of homeowners and developers in Kingston upon Thames. Our planning application service includes:

• Measured survey of the existing property
• Existing and proposed drawings (location plan, site plan, floor plans, elevations, sections)
• Design and Access Statement addressing Kingston Council’s policies
• Submission to the Kingston Council planning portal and liaison with the case officer
• Responding to any queries during the determination period

Full Architectural Service

For larger projects, Crown Architecture offers a full architectural service from concept to completion, including detailed design, specification, tender drawings, contractor procurement, and contract administration. This service is available for full house renovations, new-build dwellings, commercial fit-outs, and development projects in Kingston upon Thames.

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Planning in Kingston upon Thames: What You Need to Know

Kingston Council operates as the planning authority for Kingston upon Thames. Key considerations for residential development include:

• Conservation areas: Kingston upon Thames has conservation areas where permitted development rights are reduced or removed. Works that would normally not need planning permission may require a householder application in designated conservation areas.
• Permitted development: Homeowners in Kingston upon Thames can often extend, convert lofts, and add outbuildings under Permitted Development rights. Crown Architecture checks your specific property’s permitted development position as part of every feasibility assessment.
• Neighbour consultation: Larger extensions require Kingston Council to notify adjoining owners. Crown Architecture manages this process on your behalf.
• Article 4 Directions: In some parts of Kingston upon Thames, Kingston Council has issued Article 4 Directions that remove certain permitted development rights, typically in conservation areas and HMO-controlled zones.

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Transport and Location

Kingston upon Thames is served by Kingston National Rail station, making it well connected to central London. Crown Architecture has completed projects throughout Kingston upon Thames and in neighbouring areas including Twickenham, Surbiton, Hampton, Richmond, New Malden.

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What Our Kingston upon Thames Clients Say

Crown Architecture handled our planning application with Kingston Council from start to finish. They knew exactly what the planners would want to see and we got consent on the first application. Excellent communicators throughout.

We used Crown Architecture for our rear extension and loft conversion. The drawings were detailed and the planning process was completely handled for us. Highly recommend to anyone in Kingston upon Thames looking for a reliable architect.

Outstanding service. Crown Architecture understood the local planning context immediately – including the conservation area constraints we were facing. We could not have got planning permission without their expertise.

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Frequently Asked Questions – Architects in Kingston upon Thames

Do I need planning permission to extend my home in Kingston upon Thames?

In Kingston upon Thames, many single-storey rear extensions up to 4 m (3 m for flats and maisonettes) can be built under Permitted Development rights without a full planning application, subject to a Prior Approval notification to Kingston Council. However, properties in conservation areas, listed buildings, and flats require full planning permission for most external works. Crown Architecture reviews your permitted development eligibility as part of every initial consultation.

How much does an architect cost in Kingston upon Thames?

Architectural fees in Kingston upon Thames typically range from 8-15% of the total construction cost for a full service. For a single-storey rear extension costing £60,000, expect professional fees of £5,000-£9,000. Crown Architecture offers fixed-fee packages starting from £1,500 for planning drawing packages.

How long does planning permission take in Kingston upon Thames?

Kingston Council processes most householder planning applications within the statutory 8-week determination period. Applications in conservation areas or those requiring neighbour consultation can take 10-12 weeks. Crown Architecture prepares planning applications that comply with Kingston Council’s Design Guide and Local Plan policies to minimise delay.

What is Kingston Council’s planning policy on extensions?

Kingston Council’s planning policies follow the National Planning Policy Framework (NPPF) and the London Plan. For residential extensions, the Council assesses impact on the character of the area, on the amenity of neighbouring properties (daylight, sunlight, privacy), and on protected trees or conservation area designations. Crown Architecture’s architects are experienced in designing within these policies.

Can Crown Architecture help with listed buildings in Kingston upon Thames?

Yes. Crown Architecture has experience managing Listed Building Consent applications alongside planning permission. Listed buildings require separate consent for any works that affect their character as a building of special architectural or historic interest, both internally and externally. We work with heritage consultants where required.

Do I need a structural engineer as well as an architect in Kingston upon Thames?

Yes – once planning permission is granted, Building Regulations approval is needed before construction begins. A structural engineer calculates the loads on new beams, foundations, and connections. Crown Architecture works with trusted structural engineers across Kingston upon Thames and provides an integrated design service.

What types of projects does Crown Architecture handle in Kingston upon Thames?

Crown Architecture handles the full range of residential architectural work in Kingston upon Thames: loft conversions, rear extensions, side return extensions, wraparound extensions, basement conversions, full house renovations, new-build planning applications, and change-of-use applications.

How do I start a project with Crown Architecture in Kingston upon Thames?

Contact Crown Architecture by phone on 07443804841 or email info@crownarchitecture.co.uk. We will arrange a free initial consultation at your property in Kingston upon Thames, assess what planning route is most appropriate, and provide a fixed-fee proposal within 48 hours.

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Related Pages

• Loft Conversion Kingston upon Thames
• House Extension Kingston upon Thames
• Architect in Twickenham
• Architect in Surbiton
• Architect in Hampton
• Architect in Richmond

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Contact Crown Architecture in Kingston upon Thames

Phone / WhatsApp: 07443804841
Email: info@crownarchitecture.co.uk
Address: 71-75 Shelton Street, London WC2H 9JQ