Define the use of the additional room
Explain what the current home cannot accommodate comfortably. The need might involve dining, working, family activity or a different connection with outside space. We show those activities and their furniture when comparing options. A larger outline does not necessarily solve the problem if the route through the house remains awkward or the addition compromises a room that already works well.
Consider the retained outside space too. Storage, planting, seating and access may all need accommodation after the new work is complete. We discuss these requirements as part of the brief, rather than treating the remaining garden or courtyard as an accidental gap. The preferred option should explain its consequences for both indoor use and the practical value of the space around it.
Establish the plot and its relevant rights
Measured information is reviewed with ownership documents, identifying boundaries or access arrangements that need appropriate professional advice. A visible enclosure is not treated as a complete statement of what can be built or used for construction. The design records unresolved dependencies before they become essential to the selected arrangement.
If the home is part of a divided or mixed-use building, control of outside space and affected fabric must be established. A door opening onto a courtyard does not by itself determine the right to extend into it. We identify the parties who need information about the proposal and the documents relevant to their response, keeping those questions distinct from the household's desired room layout.
Understand the retained building and its surroundings
Tower Hamlets' Spitalfields character material describes domestic architecture with carefully composed openings and details. For a proposed addition, the actual house and relevant surrounding relationships need assessment. The council's mapped conservation information and property records help establish the context where heritage or external appearance is involved, without assuming one design response applies to every address.
We record adjoining openings, relevant levels and other site features that may influence an option. Existing drainage and concealed conditions are investigated where the proposal depends on them. The information should distinguish surveyed facts from assumptions. This allows the design to respond coherently when evidence changes, instead of requiring a late compromise around an important condition that was never checked.
Sources: Tower Hamlets: Brick Lane cultural trail · Tower Hamlets: conservation areas
Compare the form and its effects on daily life
Roof shape and glazing affect the interior as well as the external view. We consider usable height, privacy, furniture placement and environmental comfort alongside the proposed appearance. A broad glazed surface may be attractive in an image while leaving a difficult relationship with the room's activities. Options are reviewed through those practical consequences rather than selected by a single feature in isolation.
The structural connection to the existing house is developed with the appropriate adviser. Openings, retained fabric and service routes need coordination as the plan becomes more detailed. Junctions at roofs, thresholds and changes in wall construction should explain the intended arrangement. The meeting of old and new is an important part of the design, not a space to be resolved informally once each side has been built.
Plan the route to construction and completion
Access for materials, equipment and removed items is assessed against the actual property. Where the route passes through occupied rooms or shared areas, protection and household arrangements are discussed. We do not assume a neighbouring access can be used merely because it is convenient. The method and relevant responsibilities are established with the team appropriate to the proposed works.
At completion, review the addition through the activities in the brief and its connection with the original rooms. Check controls, opening fittings and maintenance access, and retain relevant records and care information. Book a feasibility visit with plans, photographs and ownership or consent documents where available. These help the initial enquiry identify useful design options and the evidence needed to develop them further.
Before work begins
House extensions in Spitalfields: questions
Can a small courtyard be considered for an extension?
It can be explored as a property-specific enquiry, with ownership, existing access, retained outside use and relevant planning and technical matters assessed. We do not assume that an enclosed space is available to build on. The proposed benefit must be considered alongside the consequences for the home and the space that remains.
How do you assess whether the existing rooms will improve?
We compare circulation, activities and furniture across the existing and proposed arrangements. The design considers what the addition changes elsewhere, including rooms that already work well. This helps explain the value of the proposal beyond an increase in floor area or a more dramatic external appearance.
What if the property has shared outside space?
The relevant legal and management arrangements need suitable review before the design relies on altering it. We identify the extent of the proposal and the parties who need information. Access from a private room does not automatically establish control of the external area or permission for construction there.
Why is the junction with the old house detailed early?
It affects structure, levels, weather protection and the relationship between rooms. Coordinating these matters while the proposal is flexible helps avoid incompatible decisions by separate trades. The connection should be explained as part of one design rather than left as an unresolved edge between two pieces of work.
What should I bring to an extension feasibility visit?
Provide available plans, photographs of the house and outside space, and known drainage or ownership information. Describe the activities the new accommodation should support and what you want to retain. The enquiry can then distinguish preferences from investigations, advice and agreements needed to assess the actual proposal.
Official sources
Tower Hamlets: Spitalfields neighbourhood-area supporting information · Tower Hamlets: Brick Lane cultural trail · Tower Hamlets: conservation areas
Sources checked on the dates recorded in the source register, most recently 8 November 2026. Maps, list entries and directions must be checked for the individual property and proposed work.
