Double-storey extensions in Richmond

Consult Richmond’s house-extension and external-alteration guide.

Compare both new floors with the existing roof and windows. The Richmond enquiry should state the rooms gained and the circulation changed so external design and internal use are reviewed together.

Read the external design and internal room brief together. On the existing elevation, show the openings and roof junctions affected by the idea. On the floor plan, show what those changes are meant to achieve for furniture, circulation and access outside. Richmond's published extension and alteration guide can then be discussed against a defined proposal rather than a vague wish for more space. Its existence is not approval for your outline or proof that the same approach works at another address. Bring any previous application drawings and say which parts you still want. Keep finishes provisional until the designer has considered the property context and the overall form. Falcon's building discussion can then follow the assessed design and an explicit supply schedule.

Confirm the council using the property postcode and give the designer any relevant map or decision reference. A named area is a starting point for checking this address, not an assessment of the whole town. Treat sketches and examples as discussion material until the property-specific work has been reviewed.

• Richmond: house extensions and external alterations guidance
• Find the council for your property

Our team offers practical guidance on layouts and finishes. Formal drawings and planning work are arranged and coordinated through the design partner. Practical guidance is not the production of architectural drawings; agree the professional scope and fees for your proposal.

Falcon supplies agreed first-fix materials and carries out the agreed building and fitting work. You buy agreed second-fix items, such as kitchen units, bathroom fittings and flooring, with guidance. The quote should say who supplies and fits each item, and how changes will be agreed.

Keep product choices and required delivery dates with the scope. Confirm dimensions and compatibility before buying items that affect preparation or services. If a choice changes, ask how that affects the agreed work before treating it as a like-for-like replacement.

The cost depends on the assessed scope, existing condition, design and chosen specification. Compare Falcon’s contract price with your total project spend: add homeowner purchases and any professional, application or other fees outside the building quote. Ask for the VAT treatment and exclusions to be explicit.

Time on site is only one part of the programme. Keep design work, property checks and approvals, lead time, procurement and construction separate when discussing dates. Explain any move, school or household commitments as requirements to discuss, not a start or completion date already agreed.

Begin the project discussion with drawings and photographs of your own home. The existing Falcon galleries show specific extension and room work in New Malden and Camden. Those photographs are not presented as a completed double-storey extensions project.

Send existing drawings or safely taken property photographs to explain what you have. A finished picture can help describe a preference, but it cannot show the hidden construction or settle which alterations are suitable.

Include your actual property postcode and describe the existing plans of both floors, roof views and records of any earlier addition. In the Richmond brief, distinguish facts you know from ideas you want assessed. Keep external form and garden connections with the drawings, and identify any decisions already made so their effect on the connected work can be discussed.

Say which drawings or decisions already exist and what still needs to be explored. Include the wider project if several services are involved. The enquiry form keeps the page you came from and lets you choose the project type that best describes your current plans.