How much is a lean-to conservatory in Teesside?

£9,000 to £16,000 fully fitted, including base work, frames, roof and glazing. The main variables are size, roof type and door choices.

Will a lean-to fit my bungalow?

Almost always. The single-pitch roof can be set shallow enough to sit below low eaves and first-floor windows. Where height is extremely tight, a gull wing design raises the roof line partway across to clear the eaves.

Is a lean-to too basic to add value?

No. Value comes from usable, well-built space, not ornament. A well-specified lean-to with a proper base, good glazing and a warm roof reads as a garden room and adds more than it costs on most Teesside semis and bungalows.

How long does a lean-to take to build?

Typically 2 to 3 weeks on site: a few days of base work, then frames and roof in days, then glazing, electrics and finishing.

Can a lean-to be open-plan to the house?

Yes, but removing the doors between house and conservatory removes the building regulations exemption, so the opening needs building control approval and usually a structural lintel. Many owners keep French doors and get the best of both.

Lean-to conservatories in Teesside

A lean-to conservatory in Teesside costs £9,000 to £16,000 fully fitted in 2026. The single-pitch roof slopes down from the house wall, which makes it the simplest and best-value conservatory style, and the natural fit for bungalows, low-eaves houses and narrower gardens.

Get Quote Call 01642 130 086 From £9,000

Modern lean-to style glass extension along the back of a house

What a lean-to actually is

A lean-to is the cleanest conservatory design going: a rectangular footprint with a single-pitch roof that slopes down from a wall plate fixed to the house. No hips, no valleys, no complicated junctions, which is exactly why it costs less and goes up faster than any other style. Done well, in the right proportions with decent glazing, it looks sharp and modern rather than basic.

The low-pitch roof is also the answer for awkward houses. Bungalows, dormers and houses with low first-floor window sills cannot take a standard Victorian or Edwardian ridge height, but a lean-to roof can be pitched shallow enough to sit under almost anything. Where even a lean-to is too tall, the related gull wing design solves it.

What they cost on Teesside

Expect £9,000 to £16,000 for a lean-to fully fitted, including the base, frames, roof and glazing. The lower end covers a compact 3 by 3 metre room on a straightforward base with a glass roof; the upper end covers wider spans, more opening vents, French or bi-fold doors and higher-spec solar-control glass. A solid warm roof adds £2,000 to £4,000 over a standard glass roof.

What a proper lean-to quote specifies

The base: how the floor will be built, over what foundations, and how it ties into the damp course of the house, plus what happens to any drains in the footprint.
The roof: glass or solid, the glass specification if glazed (solar control, self-cleaning, argon-filled), and how the wall plate is fixed and flashed against the house.
Frames and glazing: the frame system by name, the glazing unit specification, and U-values stated rather than "A-rated".
Ventilation and doors: how many opening vents, whether the doors are French, patio or bi-fold, and how the room will be heated.
Electrics and finishing: sockets, lighting, flooring and plastering of the house wall, included in writing.

Planning permission, usually not needed

A lean-to to the rear of the house, single storey and within permitted development size limits, needs no planning application in most cases. Because it stays thermally separate behind external-quality doors, it is also normally exempt from building regulations. The planning guide covers the edge cases, including conservation areas like parts of Saltburn and Yarm.

Lean-to vs the alternatives

Choose a lean-to when you want the most room for the least money, or the house cannot take a taller roof. Choose an Edwardian for a pitched-roof look with the same rectangular footprint, a Victorian for a bay front, or an orangery for more brickwork and a lantern roof. The styles guide compares them all.