The Pressures That Shaped Border Tower Houses

For centuries the Anglo-Scottish Border was a place of raid, feud and shifting loyalties. From the fourteenth to the early seventeenth century, families on both sides of the line lived with the constant threat of reiving – the stealing of cattle, goods and people – as well as the larger violence of war. Central authority was often distant or weak. In response, they built tower houses: compact, stone-built homes that combined family living with serious protection. These were not fantasy castles. They were practical answers to a dangerous world, and their defensive features can still be read in the walls, gateways and watchtowers that survive across the Borders.

Thick Walls and Unwelcoming Openings

The first line of defence was the wall itself. Tower house walls were often 1.5 to 2 metres thick, built of local rubble stone bound with lime mortar and finished with roughcast or harling. That thickness did more than stop a battering ram. It carried the weight of upper floors, provided insulation against the Border wind, and allowed the creation of vaulted ground floors. Those vaults – often barrel-vaulted – supported the storeys above and could be sealed off if the tower was breached.

Openings were deliberately few and small. Ground-floor windows were rare; where they existed they were little more than slits. Upper windows were narrow, with iron bars or wooden shutters. Doorways were low and narrow, forcing anyone entering to stoop and come in one at a time. Gun loops – cross-shaped or keyhole-shaped openings – allowed defenders to fire at attackers without exposing themselves. Even the spiral staircase, or turnpike, was a defensive feature: it usually wound clockwise going up, giving a right-handed swordsman on the stairs room to swing while his opponent was cramped against the wall.

The Yett, the Door and the Entrance Sequence

Entry to a tower house was a carefully staged affair. The main door was often at first-floor level, reached by an external stone stair or a wooden ladder that could be pulled up. That door was protected by a yett – a heavy iron gate made of interwoven bars, hinged to open outwards. Yetts were forged by local smiths and could weigh several hundredweight. They resisted fire, axes and battering, and many survive in Border towers today, complete with their original hinges and locks.

Behind the yett there might be a wooden door, and sometimes a second yett or a small portcullis. The entrance passage often had a guard chamber to one side, with a slit to watch the approach. Attackers who got past the outer door still faced a narrow, dark passage with no room to manoeuvre. The whole sequence – stair, yett, door, passage – was designed to slow an assault and give the family time to retreat to the upper floors.

Watchtowers, Barmkins and the Wider Defensive Scheme

The tower itself was only part of the picture. Many Border tower houses stood within a barmkin – a walled courtyard that enclosed cattle, stores, and outbuildings. The barmkin wall was usually lower than the tower but thick enough to stop a rush, and its gate was often fitted with its own yett. In times of alarm, livestock could be driven inside and the gate barred. The tower was the last refuge, but the barmkin was the first line of active defence.

Watchtowers were another essential feature. Some were built on the tower roof, often as a small cap-house with windows on all sides. Others stood on nearby hills, forming a chain of lookouts that could signal warning by beacon fire or flag. From a watchtower, a lookout could see reivers approaching from miles away. That early warning gave families time to gather their animals, close the barmkin gate, and withdraw into the tower. On some estates, smaller peel towers or bastles formed a network of defensible homes, each within sight of the next.

Living Inside a Defensive Shell

Despite the emphasis on protection, tower houses were homes. The ground floor might hold stores, a kitchen or even animals. Above it, the hall was the main living space, with a fireplace, aumbries (wall cupboards) and small windows. A private chamber or two occupied the upper floors. Garderobes – small latrine closets – were often corbelled out from the wall. Space was tight, and comfort was limited, but families made the best of it. Furniture was movable; tapestry or hangings kept out draughts.

Daily life was shaped by defence. The ladder was drawn up at night. A watch was kept. Cattle were brought into the barmkin at dusk. When the political situation improved in the seventeenth century, many families added more comfortable wings with larger windows and easier stairs. The old defensive core remained, a reminder of harder times.

Reading the Defences Today

When you visit a Border tower house, look for the evidence. Run your hand over the thick walls – often you can see where the harling has fallen away to reveal rubble. Look for the small windows and the gun loops. Find the yett hooks and the bar holes in the stone. Check the entrance: is it at ground level or first floor? Is there a stair that could be removed? Look up at the roof for a watchtower or cap-house. And look around for the barmkin wall, now often reduced to a low foundation.

Places like Smailholm, Gilnockie and Hermitage show these features clearly, but even a ruined stump can tell the story. The defences were not just military engineering. They were a response to a society under pressure, where family, livestock and survival were bound together. To understand them is to understand the Borders themselves – a landscape shaped by raid and resilience, and by the practical genius of building a home that could also be a fortress.