Roof space planned around structure, stairs and the whole house
Loft Conversion Hammersmith

North Star Building Solutions delivers loft conversions in Hammersmith, coordinating survey, planning, roof structure, stairs, fire safety, insulation, building services and interior finishing as one construction programme.
Every scope is reviewed against the actual property, available design information and agreed construction responsibilities before work begins.
A successful loft starts with usable geometry
Ridge height, roof pitch, purlins, chimney breasts and the proposed stair position are measured before a conversion type is selected. In Hammersmith, terraced houses, villas, mansion flats and converted properties often combine period fabric with compact gardens and busy urban access. Retained details, party walls, drainage and earlier extensions need to be understood before demolition or procurement. A broad postcode or a neighbour’s dormer does not prove that the same solution will fit the property.
The new floor, beams, roof framing and load paths are coordinated with retained walls and ceilings. Temporary support and weather protection are planned before the roof is opened, while access for steelwork and waste is considered alongside the structural design.
Fire doors, alarms, protected escape routes, guarding and staircase headroom affect the existing floors as well as the loft. Insulation, airtightness, ventilation, summer overheating and acoustics are then fitted into a limited roof build-up without blocking drainage or future maintenance access.
A Hammersmith loft planned through every floor
The new room depends on the circulation and fire strategy below it. We set the staircase against landings, door swings and ceiling lines, then coordinate roof steel, dormer framing and insulation around the available headroom. Limited side access and controlled parking also influence how long materials can be delivered, stored and lifted safely.
- Confirm roof geometry before choosing a conversion type.
- Check scaffold and loading arrangements before procurement.
- Protect the escape route throughout construction.
- Coordinate ventilation, heating and summer comfort.
Measured roof survey
Usable height, pitch, structural members, chimneys, party walls and obstructions are recorded before floor area is promised.
Staircase integration
The stair is tested against headroom, landings, doors and the existing circulation so it feels like part of the home.
Structural sequence
Beams, floor members, dormer framing and bearings follow the engineer’s information and an agreed temporary support method.
Fire and escape strategy
Detection, doors, linings, structural protection and escape routes are coordinated across every affected storey.
Comfort and energy
Insulation continuity, thermal bridges, airtightness, ventilation, heating and overheating risk are reviewed at roof junctions.
Interior completion
Storage, lighting, sockets, bathrooms, joinery, flooring and decoration are set out before first fix and enclosure.
Genuine project evidence
The archive sequence shows structure, first fix and completed interiors relevant to the careful coordination required for an upper-floor conversion. These photographs come from the North Star project archive. They demonstrate relevant construction stages but do not identify a client or claim that every image is from one named London address.






Permissions, neighbours and protection
The London Borough of Hammersmith and Fulham planning context, conservation designation and property history are checked for the address. Leasehold approval, Party Wall procedures and Building Regulations remain separate. Roof visibility, property type, previous development and any lease terms are reviewed before the consent strategy is treated as settled.
Busy roads, parking controls, narrow side returns and occupied neighbours influence delivery windows, skips, scaffold, temporary weathering and working-hour planning. The occupied house is separated from dust and falling material, and a temporary-roof response is agreed for vulnerable stages.
Our delivery sequence
- Survey the roof and affected house.
- Test conversion type and staircase geometry.
- Coordinate planning, structure and Building Regulations information.
- Plan scaffold, access, protection and temporary weathering.
- Install steelwork, floor structure and roof framing.
- Complete services, insulation, fire protection and interiors.
- Test, snag, certify and hand over.
Frequently asked questions
Is every roof suitable for conversion?
No. Usable height, pitch, structure, stair geometry, ownership and planning constraints must be tested. Sometimes a different roof solution or wider renovation is required.
Does a dormer always need planning permission?
No single answer applies. Dimensions, position, property history, conservation controls and visibility determine whether permission or another approval route is needed.
Can a bathroom be included?
Often, provided drainage, pressure, hot-water capacity, ventilation, structure, waterproofing and electrical zones can be coordinated.
How is the existing house protected?
Scaffold, temporary weathering, dust separation, safe access, alarms and protection of retained finishes are planned before the roof is opened.
How early should access be planned in Hammersmith?
Before the quotation and programme are finalised. Delivery sizes, parking suspensions, scaffold or licences, material storage and waste routes can directly affect cost, sequence and the amount of work completed each day.
Watch a completed North Star project
Discuss your Hammersmith loft conversion project
Send the property address, proposed work, available drawings and target timing. North Star Building Solutions will explain the practical next step and the information needed for a dependable scope.
Request a consultationOffice: 020 3797 6399Mobile / WhatsApp: 07883 535012