Harrow · HA1, HA2, HA3
Structural Alterations in Harrow
Knock-throughs, load-bearing removals, chimney breast removal and full internal reconfiguration — including reconfiguring houses into multiple units.
Removing a load-bearing wall means a beam sized by a structural engineer, padstones that can take the load, and temporary propping while it goes in. Chimney breast removals need the stack above supported with gallows brackets or a beam. All of it is notifiable to building control. We have reconfigured houses extensively, including converting a three-bedroom property into a six-bedroom HMO with full internal reconfiguration and external insulation.
Structural Alterations in Harrow: what to know locally
Predominantly 1930s semi-detached and detached suburban housing, with larger plots and generous rear gardens compared with the inner West London boroughs.
The 1930s semi is the ideal loft conversion candidate — hip-to-gable plus a rear dormer transforms the roof space entirely, and the plot depth usually leaves room for a decent rear extension as well. Drives are often original and overdue replacement.
Planning authority: Harrow Council. Harrow is generally more permissive than the inner boroughs for rear extensions and loft conversions, with much of the suburban stock retaining full permitted development rights. Still worth checking for Article 4 coverage.
What the work covers
- Structural engineer's calculations
- Steel beams, padstones and temporary propping
- Load-bearing wall and chimney breast removal
- Room reconfiguration and new partitions
- Fire separation and escape routes for multiple occupancy
- Building control applications and sign-off
What it costs
A single structural opening with a steel beam typically runs £3,500 to £7,000 including the engineer, the steel and making good. Full reconfigurations are priced per project after a survey.
Other work we do in Harrow
Structural Alterations nearby
Structural Alterations in Harrow — questions
Do you cover Harrow?
Yes — Harrow and the HA1, HA2, HA3 postcodes are part of our core working area, along with Wembley, Greenford, Kensal. Being local means a site visit within days rather than weeks.
Which council handles planning for Harrow?
Harrow Council. Harrow is generally more permissive than the inner boroughs for rear extensions and loft conversions, with much of the suburban stock retaining full permitted development rights. Still worth checking for Article 4 coverage.
How do I know if a wall is load-bearing?
Direction of the floor joists above, thickness of the wall and what sits above it on the next floor are the usual indicators, but it is not always obvious. We establish it on site and have an engineer confirm before anything is cut.
Do I need building control for a knock-through?
Yes. Removing or altering a load-bearing element is notifiable work. You get a completion certificate, which your conveyancer will want to see when you sell.
Can you convert a house into an HMO?
Yes — we have done full reconfigurations including taking a three-bedroom property to six bedrooms. Beyond the building work it brings in fire separation, escape routes, room size minimums and licensing, all of which we work to.
Structural Alterations in Harrow?
Tell us about the property and what you have in mind. We will come out, measure it properly, and put a written itemised quote in front of you.
We reply to every quote request within 24 hours.